chemicals most worrying propylparaben‚ polyethylene glycol‚ which also found in oven cleaners. Side effects are rashes‚ irrational and hormonal disruption. the last one is found in shampoo which has fifteen chemicals the most warring sodium laurel sulphate and tetrasodlum. the side effects include irrational and possible eye damage. Every chemical has his own effect but we as human if we don ’t do the research we won ’t know it. Methylparaben found in body lotion can cause breast cancer and skin
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SHETTIGAR AND CHHAYA GADGOLI* Saraswathi Vidya Bhavan’s College of Pharmacy‚ Sonarpada‚ Dombivli (East)-421 201‚ India. A rapid and sensitive method has been developed for the determination of glucosamine sulphate from tablets by UV-spectrophotometery. In this method‚ glucosamine sulphate was reacted with phenylisothiocyanate in presence of a base to yield phenylthiourea derivative. This derivative showed maximum absorbance at 240 nm. Beer’s law is obeyed in the concentration range of 5-25 µg/ml
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Marble and limestone used to be very common materials for art that was meant to be exposed outdoors. To a surprise‚ the acid rain could turn the calcium carbonate molecules that were found on these stone materials into calcium sulphate molecules. This is the result of calcium sulphate being dissolved by water; acid rain would eventually wash away the outside layer of buildings and statues. There are many examples all across the world of the corrosive effects acid rain has on sculptures. Many sculptures
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Introducton : The most common macromolecules found in living organisms are carbohydrates ‚ lipids‚ proteins and nucleic acids. Briefly‚ the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy‚ information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests‚ many cannot. Scientists then use certain tests to determine the presence of
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Metals and Non-metals Elements are divided mainly into two groups on the basis of physical and chemical properties – Metal and Non-metal. Metals: Part - I Physical Properties of Metals:- Hardness:- Most of the metals are hard‚ except alkali metals‚ such as sodium‚ potassium‚ lithium‚ etc. Sodium‚ potassium‚ lithium etc. are very soft metals‚ these can be cut using knife. Strength:- Most of the metals are strong and have high tensile strength. Because of this big structures are made using metals
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presented in tablets or capsules. Different forms are becoming more available due to illegal manufacturing. Amphetamine sulphate has become the most common type of amphetamine to be abused. This drug is presented in a fine‚ off-white powder‚ which contains majority baking powder and laxatives with only a small mixture of amphetamine (Murray 1998). On the street‚ this drug is known as sulphate‚ speed‚ billy whiz‚ fast‚ uppers‚ as well as many other names. When used as prescription‚ they may be called black
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` CHEMISTRY PROJECT ON PRESENCE OF INSECTICIDES IN FRUITS AND VEGETABLES A PROJECT REPORT Submitted by VAISHAKH MURALEEDHARAN Class: XII-A JANUARY 2015 DEPARTMENT OF CHEMISTRY SHANTINIKETAN INDIAN SCHOOL DOHA-QATAR SHANTINIKETAN INDIAN SCHOOL‚ DOHA – QATAR Affiliated to the Central Board of Secondary Education‚ Delhi. Approved by the Ministry of Education‚ State of Qatar. BONAFIDE CERTIFICATE This is to certify that this project report entitled “CHEMISTRY PROJECT ON” PRESENCE
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Edexel IGCSE Chemistry Revision Notes IGCSE Chemistry Triple Award Revision Guide Topic Introduction to chemistry Atomic Structure Structure and Bonding – Ionic Bonding Structure and Bonding – Covalent and Metallic Bonding Organic Chemistry - Alkanes Organic Chemistry – Alkenes / Addition Polymerisation Organic Chemistry – Alcohols / Condensation Polymerisation Calculations Periodic Table Reactivity Series and Metal Extraction Electrolysis Energetics Acids‚ Bases‚ Salts and Neutralisation Preparing
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Addressing Malnutrition In South Africa. Gary Klugman South Africa is getting set to embark on a visionary National Food Fortification Program to address nutrient deficiencies. Scientists however‚ are beginning to question whether the program will actually achieve its objective of redressing nutrient deficiencies in children. Gary Klugman takes a look at the chemistry of the proposed national food fortification program and the anticipated efficaciousness. Get the facts and enter the debate. A
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Pre-Eclampsia and Eclampsia Disorders In Pregnant Women Pre-eclampsia and eclampsia are disorders in pregnant women. Pre- eclampsia is hypertension and eclampsia is the worsening of pre-eclampsia where the woman experiences convulsions or goes into a coma. The complication of eclampsia in a pregnant woman can put her and her unborn child at risk. A risk that may be fatal. This is only to briefly define the disorders. Furthermore‚ I predict that women who have suffered from eclampsia do need
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