Chemistry Forum

Phthalates are by far the most widely used plasticisers, primarily to make soft and flexible polyvinyl chloride (PVC) for the applications in the industry of automotive, building & construction material, cable, flooring, medical device and toys. Phthalates make the long polyvinyl molecules to sl...

Benzene, also known as benzol, is a colorless liquid with a sweet odor. Benzene evaporates into air very quickly and dissolves slightly in water. Benzene is highly flammable. Several tests can show whether you have been exposed to benzene. Some of these tests may be available at your doctor's office...

A 4-L, three-necked, round-bottomed flask equipped with a mechanical stirrer, 500-mL pressure-equalizing dropping funnel, thermometer, and reflux condenser provided with a calcium chloride drying tube is charged with 202.6 g (1.0 mol) of 1-chloro-2,4-dinitrobenzene (Note 1) and 1.2 L of dry pyridine...

L-arginine is defined as a semi-essential amino acid. That sounds a bit odd -- something is either essential (shelter) or it isn't (cable TV), right? Sort of. "Essential" has a slightly different meaning in nutrition. An essential nutrient is one that you must obtain somehow, either throug...

L-serine is a nonessential amino acid, it occurs naturally in an L-isomer form. L-serine is synthesized from glycine or theonine. It is involved in the biosynthesis of purines, pyrimidines, and other amino acids. L-serine plays a role in cell proliferation. Serine is just one of tweny amino acids wh...

Copper is a mineral stored primarily in the liver, with small amounts in all tissues in the body. Although only a small amount is needed, copper is an essential nutrient that plays a role in the production of hemoglobin (the main iron component of red blood cells), myelin (the substance that surroun...

Phenol is a colorless or white solid when it is pure. It is usually sold and used, however, as a liquid. It has a strong odor that is sickeningly sweet and irritating. It evaporates more slowly than water and dissolves fairly well in water. Phenol can catch on fire.Phenol is mainly a man-made chemic...

Uridine is a part of the pyrimidine family. Uracil attaches to the sugar ribose to form a glycosidic linkage, and the resulting compound is uridine. Its involvement in the biosynthesis of RNA demonstrates that uridine is important in the translation of genetic information. Uridine is present in ever...

Benzene, also known as benzol, is a colorless liquid with a sweet odor. Benzene evaporates into air very quickly and dissolves slightly in water. Benzene is highly flammable. Most people can begin to smell benzene in air at 1.5-4.7 parts of benzene per million parts of air (ppm) and smell benzene in...

Oxazole is a heterocyclic organic compound that has a five-member ring molecular structure,C3H3ON, containing three carbon atoms, one oxygen atom, and one nitrogen atom. It is a clear to yellowish liquid with a pyridine like odor. It is soluble in alcohol and ether and slightly soluble in water. Oxa...

Acetic acid, also known as ethanoic acid, is an organic acid that gives vinegar its sour taste and pungent smell. The name derives from acetum, the Latin word for vinegar. It is also the defining ingredient of vinegar. But vinegar is not the only use of acetic acid . The global demand for acetic ac...

In April 2010, the Michigan Department of Community Health1 notified the AVMA of two situations where veterinary personnel were affected during the treatment of dogs that had ingested zinc phosphide rodenticide pellets; it is suspected that human exposure resulted from the release of phosphine gas i...

The residual solution is then transferred to a 2-l. beaker, a solution of 50 g. (1.25 moles) of sodium hydroxide in 100 cc. of water and a little decolorizing carbon are added, and the mixture is boiled until the odor of ammonia is completely absent (Note 4). The solution is filtered by suction, dil...

• Use Benzyl Alcohol Lotion 5% exactly as prescribed. Your healthcare provider will prescribe the treatment that is right for you. Do not change your treatment unless you talk to your healthcare provider. • Use Benzyl Alcohol Lotion 5% in two treatments that are one week apart. Benzyl Alcohol Lotion...

"Glutathione is a very interesting, very small molecule that's [produced by the body and] found in every cell," says Gustavo Bounous, MD, director of research and development at Immunotec and a retired professor of surgery at McGill University in Montreal, Canada. "It's the [body's] m...