Diflubenzuron is an odourless, white, crystalline solid. It is almost insoluble in water and poorly soluble in apolar organic solvents. In polar to very polar solvents, the solubility is moderate to good, e.g., in acetone ...

Ammonia is a colourless acrid-smelling gas at room temperature and normal atmospheric pressure. Most people can identify its odour at 35 mg/rn3 in air. It can be stored and transported as a liquid at a pressure of 10 ...

Barium is an alkaline earth metal that occurs in nature in a combined form. It is present in rocks, minerals, soils, air, natural waters, and fossil fuels. Some barium salts (e.g., acetate, nitrate, and chloride) are quite ...

Pure paraquat salts are white and the technical products, yellow. They are crystalline, odourless, hygroscopic powders. Paraqual is slightly soluble in alcohol and practically insoluble in organic solvents. Paraquat is ...

Commercial 1,3-dichioropropene is a mixture of cis- and trans- isomers and 92% pure. It may also be used in admixtures with 1 ,2-dibromoethane (Dorloe) or with 1 ,2dichloropropane (D-D , soil fumigant; Nemex Telone , and ...

Pure methyl parathion is crystalline and white. It is relatively insoluble in water, poorly soluble in petroleum ether and mineral oils, and readily soluble in most organic solvents. Methyl parathion is stable at pH 1-7, ...

The PCBs are chlorinated hydrocarbons that are manufactured commercially by the progressive chlorination of biphenyl in the presence of a suitable catalyst (e.g., iron chloride). Depending on the reaction conditions, the ...

Lindane is a white, crystalline solid, with a weak, or no, odour (the characteristic smell of technical HCH is attributed to the impurities, particularly heptachlorocyclohexane). Lindane is stable to light, air, heat, ...

1,2-Dichioroethane is a colourless liquid, with a sweet taste aid a chloroform-like odour. Reportd odour thresholds are 25-450 mg/ni for perception and 162-750 mg/rn for recognition. 1,2-Dichiorethane is a volatile and ...

Isophorone is a colourless liquid. Its odour has been described as similar to those of peppermint and camphor. It is soluble in water and is miscible in all proportions with aliphatic and aromatic hydrocarbons, alcohols, ...