Fenvalerate is a potent insecticide that has been in use since 1976. It is an ester of 2-(4-chlorophenyl)-3-methylbutyric acid and alpha-cyano-3-phenoxybenzyl alcohol, but lacks a cyclopropane ring. However, in terms ...

Aluminium is a silvery-white, ductile and malleable metal. It belongs to group IIIA of the Periodic Table, and in compounds it is usually found as AlIII. It forms about 8% of the earth's crust and is one of the most reactive ...

Methanol is a clear, colourless, volatile flammable liquid with a mild alcoholic odour when pure. It is miscible with water and many organic solvents and forms many binary azeotropic mixtures. Methanol occurs naturally ...

Mercury is a metal which is liquid at normal temperatures and pressures. It forms salts in two ionic states mercury(I) and mercury (II). Mercury (II), or mercuric, salts are very much more common than mercury(l) salts, and ...

It is the aim of this document to take the ecotoxicologist's point of view and consider effects on populations of organisms in the environment. The risk to human health of the use of DDT was evaluated in Environmental ...

Formaldehyde is a flammable, colourless and readily polymerized gas at ambient temperatures. The most common commercially available form is a 30-50% aqueous solution. Formaldehyde is readily soluble in water, alcohols, and ...

Cypermethrin was initially synthesized in 1974 and first marketed in 1977 as a highly active synthetic pyrethroid insecticide, effective against a wide range of pests in agriculture, public health, and animal husbandry. ...

Nickel is a metallic element belonging to group VIIIb of the periodic table. It is resistant to alkalis, but generally dissolves in dilute oxidizing acids. Nickel carbonate, nickel sulfide, and nickel oxide are insoluble ...