Chemistry educational project. Speech "Research work of students in chemistry
TOPIC: Detergents for dishes and their properties. The effect of detergents on metal corrosion.
Introduction page 2-3
Chapter 1. General information about dishwashing detergents p. 4-5
1.1 Dishwashing liquid page 4
1.2 Composition of dishwashing detergents page 4-5
Chapter 2. Dishwashing detergent diagnostics page 6-8
Thanks to the great knowledge of the problem and the serious efforts of all staff, the management of an appropriate development base for the Institute based on basic medical needs was developed. The immensity of the work of services, including the need for testing the drug does not always correspond to their posed requirements, the lack of testing methods, it is necessary to develop appropriate standards, issues of training our own personnel and production capacity, as well as a huge number of incoming analyzes in batch management, scheduled inspection, sampling, imported medicines and so on.
2.1 Diagnostics of the use of dishwashing detergents page 6
2.2. Composition, properties and features of the use of detergents page 7
2.3. Physicochemical properties of dishwashing detergents. pp. 7-8
2.4. Influence of dishwashing detergent solutions on page 8
the course of processes of corrosion of iron objects.
Conclusion p. 9
In extremely difficult conditions, the premises are the conditions in which the Institute medicines, having no regularities in this area, has developed and developed a proper way of its development over the past decade. We are currently developing our own experience and in-depth knowledge of the issues that we are entering into a new decade of business. The Institute of Medicines will develop full scientific and service activities. Coordination work will be carried out on a large scale, directing new directions of research, studies with subsequent, later harmful effects of drugs will be expanded, the issue of clinical trials of domestic and foreign drugs will be normalized, we will deepen scientific work in the field of radioactive drugs to gradually take control of everything, we will organize our own laboratory to test the sterility of drugs and medical devices, we will look at some packaging and the effect of plastics on therapeutic substances, we will work on the issue of the durability of drugs with different therapeutic combinations, we will participate in the program more than before in graduate studies in drug analysis and control.
References p. 10
Appendix page 10
Introduction
The twenty-first century is the time when information became the foundation on which all spheres are held human life... Therefore, each person must be sure that the information he possesses is reliable and will not bring him and those around him spiritual or physical harm. Streams of information reach us from everywhere, but the main source is the media. And often even an educated and sophisticated person cannot determine whether they are trying to deceive us by using advertising gimmicks or only slightly exaggerating the merits of the goods and services offered. Advertising has become an integral part of our life. Sometimes it really helps to navigate the variety of goods and services, and sometimes it promises just "miracles". Thanks to the active advertising policy of manufacturers, today almost every family uses special means... So, scientists have calculated that a Russian family of 4 people washes about 5 tons of dirty dishes every year! The first MCs appeared over 5000 years ago in the Middle East. But their role in our life has not changed until now. MS is currently used for removal different types dirt: stains on clothes, rust, dirty dishes, etc.
We will continue to coordinate the work of the Polish Pharmacopoeia Commission, the Medicines Commission and the Interdepartmental Commission on the Production and Consumption of Drugs. We will continue to expand the activities of the Documentation and Scientific Information Section. The work will be carried out with the aim of improving academic qualifications and obtaining higher education and academic degrees by the staff of the Institute. In the field of science, we will take into account the development of the latest analytical methods in the field of problems of the Polish Academy of Sciences and the Ministry of Health.
In terms of their composition, dishwashing detergents are close to shampoos and shower gels. That is, to hygiene products. And they have special safety requirements. This is all good, however, dishwashing detergents are listed as household chemicals... This means that they do not need a hygiene certificate to guarantee safety. The requirements for both toilet bowl cleaner and dishes are the same. Manufacturers can submit their products to safety tests, but voluntarily. Chemists admit: this certificate only guarantees that at the time of use you will not be poisoned, will not ruin the skin of your hands. But what happens over time in the body, which constantly gets the remains of the detergent - such studies have not been carried out.
Undoubtedly, the above questions do not cover questions that life itself often brings to the fore, and the development of which often requires extensive and thorough research. The Medicines Institute's action plan for the next decade covers the most important issues that will be progressively implemented by the Medicines Institute leadership to the extent possible.
The next decade is characterized by a certain stability organizational structure... New units are not created so quickly, but there has been a change and expansion of existing factories and divisions due to the expansion of the scope of work. Laboratories change to institutions in which they work more workers, other existing ones are expanding and expanding.
With the constant increase in the number of new chemicals coming into circulation, urgent problem is their study in order to obtain information about the potential hazard of substances and the development of preventive measures to prevent adverse effects on the human body and the environment. Among the complex of environmental factors subject to hygienic control, household chemicals (TBC) deserve great attention due to their mass production and use, the variety of components that make up the formulations, as well as with possible direct effects on the human body. As you know, after use, all chemicals enter the environment and adversely affect it, but we do not think about it. Therefore, we decided to devote our work to household chemicals and, having studied the composition of MC for dishes, to determine how safe their use is.
These are also the years of training of personnel, obtaining a degree. Young masters become doctors, elders do habilitations, and also receive the title of professor. During current work many dissertation and dissertation dissertations are born. The Institute is actively involved in scientific research conducted within the framework of centrally planned government and departmental issues. Some topics as well as problems test work are a source of inspiration for problem solving and research that will serve the future scientific development of workers.
We believe that our work is very relevant today. We cannot do without MS, but their use often harms our world. To understand how to deal with the harm that MCs do to us, we first need to learn more about them than advertised. We decided to conduct a study in our school to identify the funds that use most in demand, and analyze the reasons for the choice of the participants in our study. It is up to every person to say yes or no to MS, but if certain rules are followed, the health risk will be minimal.
The faculty of the Institute has many academic merit. Kubikovsky supported and helped in the emergence of several foreign internships, received scholarships, attended conventions and congresses. Travel and travel, initially limited to neighboring countries, gradually began to change to longer stays at renowned research centers in Europe and the United States.
People from these trips returned richly, not only through specific research work, but also through the establishment of personal contacts, acquaintance with other countries, acquaintance with other cultures. This broadening of the outlook had a positive effect on the work in the country, helping not only to solve current problems, but also to allow the study of life in the world.
Practical significance The work consists in the fact that the information obtained from the results of the research work can be used to educate the population of the village about the dangers of certain detergents, about the negative impact of SMS on human health, and the increased corrosion of metals from which plumbing is made.
Personal ambition was awakened to pursue a degree. The institute had a good atmosphere for research. The times in the country were still difficult, there was still no money, the Institute had very difficult living conditions, fought for a modern apparatus, but people very diligently make the Institute also create a basis for the inner enrichment of their own lives.
The long-term director of the Kubikovsky Institute of Medicines has contributed to the creation of such a climate. In the 1960s, 24 doctors were received. Borkowski was the good spirit of these works. Then these actions were continued by prof. This was the time when many of the Institute's staff members took part in the study. This route was followed by another. Some of the doctoral students were habilitating and some received the title of professor. Irena Wilczynska-Vojtulević, doc.
Target works: to investigate the physical and chemical properties of detergents, to investigate the effect of detergents on the corrosion of metals from which plumbing is made.
Tasks :
1. Study the literature on this issue;
2. To identify the most commonly used brands of dishwashing detergents at home;
Kubikovsky retired, became the director of the Institute of Medicines, and continued his efforts to improve the qualifications of employees. In the 1970s, over a dozen people received PhD degrees. The seventies were the period of prof. At the same time, he continued his vision for the Institute, which he had held for the previous 8 years as Deputy Director for Core Business. These years, although economically difficult, were characterized by the development of the Institute; Both the scope of the audit work and the research work were expanded and, as mentioned above, further scientific development of the staff took place.
3. Study the composition given of dish detergents using their labels.
4. Investigate the physical and chemical properties of detergents;
5. Consider the effect of detergents on metal objects (nails).
Object of study : liquid dishwashing detergents.
Subject of study: properties and safety of use of dishwashing detergents, metal corrosion.
During this time, scholarships and study opportunities abroad were opened. They also came to the Institute of Medicines, and many of their staff left for shorter or shorter stays at that time. They arrived at an enrichment of knowledge that raised the level and expanded the scope of the Institute, and at the same time often provided the basis for the acquisition of new qualifications and degrees. In the seventies, a dozen or so received PhD degrees. We also train people from other countries, for example in the Department of Pharmacology under the supervision and promotion of prof.
Hypothesis: if you have complete information about the composition and properties of detergents, thenyou can preserve human health, prevent damage to plumbing made of iron.
In accordance with the objectives of the study, methods of systematization were used theoretical material, research methods and methods of observation, generalization of the accumulated material.
Denmark received 2 doctors from Egypt. During these years, many leaders of the Institute received degrees of habilitation. Undoubtedly, this fruitful decade has already begun in the sixties, which is a great merit of the two previous directors: the head - prof. Kubikovski, deputy director - prof. The following decades have seen the fruits of previous efforts.
In the sixties, there was only one such trip - doc. Dr. Jan Venulet, Head of the Department of Pharmacology in Damascus. Undoubtedly, such situations have increased the prestige of the Institute outside. There were also favorable conditions for active work in international scientific federations.
Chapter 1. General information about dishwashing detergents
1.1 Dishwashing detergents and their properties
Special utensils detergents first appeared in the 1950s. Means for hand wash utensils are available in the form of a liquid or gel. Gel products are considered to be more effective than liquid products.
The main properties of the product is its detergency. A big plus of the product is its ability to effectively deal with oil and grease contamination in cold water This is achieved due to the selection of the optimal surfactant composition.
Regardless of how he has traveled, the Institute infiltrates and broadens its daily work. The Center for the Study of Drug Abuse was also the beginning of the existing Center for Pharmacoepidemiology. Regarding registration issues, the Institute has developed its own organizational activities in the field of preclinical and clinical assessment of drugs. During these years, various spheres of life in the country were controlled centrally. Ministry and government themes and concerns were also formulated in the area of health.
Another important property of hand dishwashing detergents is its mild effect on the skin of the hands. It is worth noting that manufacturers' statements that the pH level of their products is 5.5 can in no way guarantee the absence of irritation, especially in people prone to allergies. Therefore, when washing dishes, the skin needs protection. The product must contain softening components and do not forget that hands can be protected from harmful effects means using ordinary rubber gloves.
The Institute of Medicines has incorporated this research into basic and applied research. the main problem was the drug control problem. Increased requirements for assessing the quality of drugs have led to the development of new methods. Instrumental analysis has been developed in the field of chemistry. New tests of drug safety have been developed. There is also a new specialization in microbiology: research into drug contamination and the assessment of their microbiological purity.
The microbiological study included disinfectants, preservatives and assessment of their antimicrobial activity. The work was carried out in close connection with international teams dealing with these issues. The scope of analysis of medical materials has also expanded, including the evaluation of new plastic materials and dental materials. The company was involved in research as part of the Central Development Program on methods for evaluating products intended for contact with body tissues.
The composition of the dishwashing liquid can tell a lot about it.
1.2 Composition dishwashing liquid
The basis of the detergent is surfactants. It is they who determine its washing ability.
Surfactants are classified into two types: ionic and non-ionic (non-ionic).
The fundamental difference lies in the fact that nonionic surfactants are not subject to electrolytic dissociation, i.e. they do not disintegrate into positively and negatively charged ions in water; Ionic surfactants, when interacting with water, decompose into ions, some of which have adsorption (surface) activity, others (counterions) are adsorption inactive.
Likewise, the scope of work of the Isotope Medicines Department was developed in assessing the quality of radiopharmaceuticals used in Polish medicine, which allowed it to join the government program: "Fight against cancer".
The scope of the Institute has also changed significantly in terms of vitamins. The initiator of this work was prof. This method allowed us to conduct research on the contribution of vitamins to cancer and investigate the mutagenicity of certain drugs. These works were also included in the government program: "Fight against cancer", as a result of which a large number of graduate students of the Department of Vitamin appeared.
Ionic surfactants are called anionic, if surface-active ions carry a negative charge, and cationic, if surface-active positively charged ions. Some surfactants, depending on the conditions in which they are used, exhibit properties of either anionic or cationic, therefore they are called amphoteric or ampholytic. Anionic surfactants - organic acids and their salts. Cationic - bases, usually amines, and their salts. In the world production of surfactants, most of the anionic substances.
The Department of Pharmacology was widely involved in the development of state and departmental problems. The works organized in the seventies by the then head of the department, prof. Danysh was the director of the institute. These were problems of the mechanisms of action and fate of drugs in the system, as well as closely related issues of control of side problems and unwanted effects of drugs. These studies were part of the Institute's efforts to tackle the problems of government: "Fighting Cancer" and "Preventing and Fighting Cardiovascular Disease."
In the study of the drug mechanism, the results of the Department in the field of membrane drug transport and targeted pharmacotherapy are especially interesting. The 70s at the Institute of Medicine were economically difficult, but still characterized by further development Institute and its staff. The new face of the Institute was created at a time when its foundations became a solid foundation for an ever expanding business, and then the scientific development of personnel and the beginning of contacts with the world.
Synthetic detergents necessarily contain a number of auxiliary substances that improve their detergency. The composition of detergent compositions sometimes include alkaline salts of weak inorganic acids(sodium carbonate and bicarbonate, sodium silicates, phosphates of various compositions), neutral salts (sodium chloride), peroxide salts with bleaching and disinfecting properties (sodium perborate and percarbonates). Exactly these chemical substances and enter into chemical reactions with metals from which plumbing is made, under the influence of these substances, metal corrosion occurs. Corrosion causes billions of dollars in losses every year, and solving this problem is an important task. The main damage caused by corrosion lies not in the loss of metal as such, but in the enormous cost of products destroyed by corrosion. That is why the annual losses from it in the industrial developed countries so great.
An important role is played by the organic components of surfactants: carboxymethyl cellulose, which prevents the re-deposition of contaminants from the washing solution onto the washed surface, and the so-called hydrotropes, which increase the solubility and accelerate the dissolution of surfactants in water.
Some detergents contain enzymes that remove insoluble protein stains, organic bactericides, and foam stabilizers.
Many detergents add aromatic substances (fragrances) to remove unpleasant odors and give the washed surface a fresh scent. True, the smell of an apple, lemon or, for example, forest berries does not mean the presence of extracts of the above mentioned fruits in this product.
Also, dishwashing detergents may contain substances that soften the negative effects on the skin of the hands. The most common additives are glycerin, silicone, and herbal extracts. Glycerin and silicone have a similar effect, they create on the skin protective film preventing it from drying out. At the same time, the surface film created by the silicone is able to protect against the penetration of substances harmful to the skin contained in the detergent.
Plant extracts soften the skin, have a soothing effect, relieve irritation that can be caused by individual components of surfactants (such an effect is possessed by, for example, aloe vera milk). But even with all undoubted merits these additives cannot guarantee your skin is completely safe.
Chapter 2. Dishwashing detergent diagnostics
Diagnostics of the use of dishwashing detergents.
In order to find out which of the tools are most used, we interviewed students, teachers and school staff. 50 people took part in the survey.
The survey data show that the most popular medium is Fairy. It is used by 19 of the respondents, which is 38%. Further in decreasing popularity are: "AOC" - 11 people, 22%; "Myth" - 7 people, 14%; SORTI - 7 people, 14%; "Drop" - 6 people, 12%.
2.2. Composition, properties and features of the use of detergents.
To study the composition, properties, features of the use of dishwashing detergents, the labels of the products indicated in the questionnaire of users were studied. As a rule, no one reads the instructions for washing dishes, but this does not relieve the manufacturer from the need to apply this information to the label.
The research data are shown in Table 1.
Table 1.
Composition, properties and features of the use of detergents.
Fairy
AOC
MYTH
SORTI
A drop
Volume / ml
Price, rub.
Shelf life
18 months
18 months
18month
18 months
24 months
Composition
5-15% anionic and nonionic surfactants, perfume, preservative, citroneplol, limonene and linalool.
5-15% anionic and nonionic surfactants, ethylenediaminetetraacetic acid salt, flavoring additives, preservatives
anionic and nonionic surfactants, sodium chloride, lemon acid, preservative, perfume composition, citric acid
Water, anionic and nonionic surfactants, ethylenediaminetetraacetic acid salt, flavoring additives, preservatives,
Water, surfactant,
sodium chloride, citric acid, preservative, perfume composition, citric acid,
apply a small amount to a damp sponge
Put a few drops of the product on a damp sponge
Put a few drops of the product on a damp sponge
Apply a small amount to a damp sponge
6. Precautions
In case of contact with eyes, rinse with water.
Keep out of reach of children
Protect from sunlight. Keep away from heating appliances... Keep out of the reach of children. In case of contact with eyes, rinse with water.
Keep out of the reach of children, avoid contact with eyes.
These tables allow you to do the following conclusions:
If the amount of detergent is the same, the price of the detergent is not the same.
More expensive means include "Fairy", "AOS", cheaper means are "Myth", "SORTI" and "Kaplya".
The shelf life of all funds is almost the same.
The main component of MS are surfactants.
in addition to surfactants, the detergents contain dyes, preservatives, perfume composition, but the labeling of these substances is not indicated, which does not allow us to draw a conclusion about their safety for humans.
Not indicated on packages exact amount means required for use. Only it says “put a small amount on a sponge or dish” or “drip a few drops ...”.
Almost all funds, except for "Fairy"Contain a warning:" Keep out of the reach of children "and describe what to do if the product gets into the eyes.
Much attention is paid to advertising data on the MC label: manufacturers indicate that all products effectively remove fat not only in hot, but also in cold water, are easily washed off with water, leaving no streaks. On the label of the product “Fairy»Indicates that it complies with the RF standard for washable from dishes.
2.3. Physicochemical properties of dishwashing detergents.
Experiment 1: Investigation of the pH of the solution.
One of the requirements for the use of dishwashing detergents is that they must have a neutral or slightly acidic solution pH (pH = 5.5-7).
To determine the pH of the solution, we took a 0.1% solution of each agent, examined it using an instrument for determining the pH of solutions. The results of the experiment are shown in table 2. Output: All products are pH neutral.
Table 2:
Chemical properties dishwashing detergents.
IndexFairy
AOC
Myth
SORTI
A drop
1.pH of the solution
7,68
7,7
7,7
6,0
6,0
Content
phosphates
-
-
-
-
-
Test 2 : Phosphate content in dishwashing detergents .
The presence of phosphate additives in detergents leads to a significant increase in the toxic properties of surfactants. They penetrate into the microvessels of the skin, are absorbed into the bloodstream and spread throughout the body. This leads to a change physical and chemical properties the blood itself and impaired immunity.
A 0.1% solution of each agent was tested with silver nitrate. There was no yellow or white precipitation in the tubes. A yellow precipitate indicates the presence of phosphate ions (Ag 3 PO 4) in the samples, a white precipitate indicates the presence of chloride ions (AgCl) in the samples. The results of the experiment are shown in table 2.
Output: Phosphate additives were not found in detergents.
2.4. Influence of solutions of detergents for dishes on the course of processes
corrosion of iron objects.
When disposing, used dishwashing detergent solutions come into direct contact with metal pipes sewerage, and when washing with metal dishes.
For the study, a 0.1% solution of each detergent was prepared and an iron nail 80 mm long was dipped into each. The experiment was carried out at room temperature... As a control sample was used tap water... The experiment was carried out with three repetitions.
On the first day, rust appeared on the nails in the following products: "JSCS", "a drop SORTI". On the second day, a raid of rust appeared in a test tube with tap water and on a nail dropped in "Fairy» ... In the "MYTH" tool, rust appeared in the test tube on the third day, while the nail remained clean. In the following days, the plaque of rust on the nails increased, and the fastest in the funds: “Fairy"," JSC S", "a drop SORTI". At the bottom of the test tubes, rust was deposited - a brown sediment. By the end of the observation, the sediment height was different in the test tubes: “AOS"- 10mm," Fairy"-7mm," drop SORTI"- 9mm," MYTH "- 4mm," Drop "- 9mm, water - 3mm.
Output: All tested solutions of dishwashing detergents enhance the corrosion of iron objects, which means they have a negative effect on sewer pipes and metal utensils.
Final part
Conclusions:
The most popular among the population are the following products: "Fairy",
« AOS ".
Detergent labels contain a lot of promotional promises,
but not full information on the composition and labeling of ingredients, on the method of application.
All products are highly soluble in water.
4. All products are pH neutral.
5. The products do not contain harmful phosphate additives.
6. All investigated solutions of dishwashing detergents enhance the corrosion of iron objects, which means they have a negative effect on sewer pipes and metal utensils.
We want to advise you, take a more responsible attitude to the choice of detergents and not let advertisements deceive you. Do not forget that our children and grandchildren will live on this planet, and we must take care of their future and health. Also, do not forget that our environment... We also want to advise you to be more careful with detergents and do not forget that they contain components that can cause rashes, chemical burns, irritation and allergies. Always read the precautions written on the back of the packaging and keep detergents out of the reach of children.
We are aware that the consumption of detergents by people cannot be stopped, or even reduced. Moreover, with an increase in the population of our planet, the number and variety of detergents inevitably increases, which have a detrimental effect not only on humans, but also on the environment.
We hope that in the course of progress, safer detergents will be invented, which will be able to completely dissolve in water without forming harmful chemical compounds... The information obtained during the research work can be used in teaching a school course in chemistry, biology, ecology, on class hours, when talking with students and parents, in optional classes in chemistry and ecology.
Literature:
1. Ambramzon A.A. and other Surfactants. Synthesis, analysis, properties,
application. L., 1988.
2. Ashikhmina T.Ya. School environmental monitoring. Educational and methodical allowance / Ed. T.Ya. Ashikhmina. - M .: Agar, 2000.
3. Bogdanov I.I. Conversations about ecology: Textbook. allowance. - Omsk, 1995.
4. Spausus Z. Travel to the world of chemistry. M .: "Education", 1967.
Schwartz A., Peri D. Surfactants: their chemistry and technical applications... M., 1953.
Kharlampovich G.D. and others. Many-sided chemistry. - M .: "Education", 2004
Applications
Observation: 4.11.15
Observation: 11/10/15
Stages of work: Review and analysis of labels on the products of several manufacturers of Tide washing powders, Tide and Dosia, Dosia, studying the composition of Head Head & Shoulders, Shoulders, Sebozol shampoos, baby cream, baby Johnsons baby oils by their labels. Study of information on the package; Viewing commercials of Tide, Tide and Dosia washing powders. "Dosia". Evaluation of the reliability of advertising using experience from the standpoint of chemistry; Drawing up tables.
THE TASKS OF THE RESEARCH: I HAVE SETTED MYSELF THE TASK TO CHECK THE RELIABILITY OF ADVERTISING OF WASHING POWDERS. THEN TO STUDY THE COMPOSITIONS OF WASHING POWDERS, CHILDREN'S CREAM AND OIL, SHAMPOO. Problem solving: For the experiment I chose an advertisement for TIDE and DOSIA washing powders, baby cream, Johnsons baby oil, Head & Shoulders shampoos, Sebozol.
O WRITTEN STUDIES THAT I MUST DO. Take "TIDE" and "DOSIA", "Head & Shoulders" and "Sebozol", baby cream and "Johnsons baby." Analyze the composition of each product. Take "TIDE" and "DOSIA", "Head & Shoulders" and "Sebozol" , baby cream and Johnsons baby. analyze the composition of each product. Take fabrics stained with four types of stains and soak in "TIDE" and "DOSIA". Take fabrics stained with four types of stains and soak in "TIDE" and "DOSIA". Analyze the results obtained (assessed the degree of purity). Analyze the results obtained (assessed the degree of purity). I present the results of the research in the table. I present the results of the research in the table.
STAGE I. P REVIEW AND ANALYSIS OF LABELS ON PRODUCTS. Review and analysis of labels on the products of several manufacturers of washing powders "Tide" and "Dosia", study of the composition of shampoos "Head & Shoulders", "Sebozol", baby cream, baby oil "" according to their labels. Study of information on the package. Review and analysis of labels on the products of several manufacturers of washing powders "Tide" and "Dosia", study of the composition of shampoos "Head & Shoulders", "Sebozol", baby cream, baby oil "Johnsons baby" according to their labels. Study of information on the package.
Powder composition: "TIDE" "DOSIA" 15-30% - anionic surfactants 15-30% - anionic surfactants phosphates, phosphates, less than 5% - cationic surfactants less than 5% - cationic surfactants oxygen-containing bleach oxygen-containing bleach nonionic surfactants nonionic surfactants enzymes optical enzymes bleach optical brightener 5-15% anionic surfactants 15-30% water softening components oxygen-containing bleach less than 5% nonionic surfactants enzymes antifoam flavoring
WITH SHAMPOO REST: Water (H2O) Water (H2O) Ammonium lauryl sulfate (C12H29NO4S) Ammonium lauryl sulfate (C12H29NO4S) Sodium chloride (NaCl) Sodium chloride (NaCl) Glycol distearate Glycol distearate Prithion zinc Parfumite sodium Parfumite zinc 6 H 5 O 7) Sodium citrate (Na 3 C 6 H 5 O 7) Citric acid (C 6 H 8 O 7) Citric acid (C 6 H 8 O 7) Benzyl alcohol (C 7 H 8 O) Benzyl alcohol ( C 7 H 8 O) Water (H2O) Water (H2O) Sodium laureth sulfate Sodium laureth sulfate Sodium chloride (NaCl) Sodium chloride (NaCl) Ketoconazal Ketoconazal Glycerin (C 3 H 5 (OH) 3) Glycerin (C 3 H 5 (OH) 3) "Head & Shoulders" "Sebozol"
WITH OIL AND CREAM REST: Vaseline oil Vaseline oil Isopropyl ether Isopropyl ether Aloe Barbadensis Aloe Barbadensis Vitamin E Vitamin E Perfume Perfume Glycerin (C 3 H 5 (OH) 3 Glycerin (C 3 H 5 (OH) 3 Vaseline oil) Vaseline oil calendula flowers Oily extract of calendula flowers Aloe vera gel Aloe vera gel CO2 extract CO2 chamomile extract "Johnsons baby" "Baby cream"
CONCLUSION: We do not deny the need for advertising and its important role in life modern man, but we urge you to be very thoughtful and critical of everything that advertising firms bring down on us from the pages of newspapers, from TV screens, from numerous posters. leaflets and brochures. As you read any advertisement, try to find out if its content contradicts the laws or the concept of natural sciences that we study in school.
