d-Phenothrin has been in use since 1977. It is estimated that 70-80 tonnes of d-phenothrin are used annually worldwide, mainly to control noxious insects in the household and insects of public health concern and to protect ...

The chemical name for diazinon is O, O-diethyl O-2-isopropyl-6-methylpyrimidinyl-4-yl phosphorothioate. The pure material forms a colourless liquid with a faint ester-like odour. The technical active ingredient is a ...

Polychlorinated biphenyls (PCBs) were discovered before the turn of the century and their usefulness for industry, because of their physical properties, was recognized early. The PCBs have been used commercially, since ...

Nephrotoxicity can be defined as renal disease or dysfunction that arises as a direct or indirect result of exposure to medicines, and industrial or environmental chemicals. It is well established that toxic nephropathies ...

Nitrogen oxides can be present at significant concentrations in ambient air and in indoor air. The types and concentrations of nitrogenous compounds present can vary greatly from location to location, with time of day, and ...

Chlorothalonil is a colourless, odourless, crystalline solid with a melting point of 250°C and a vapour pressure of 7.63 × 10-5 Pa (5.72 × 10-7 mmHg) at 25°C. It has low water solubility (0.6-1.2 mg/litre at 25°C) and an ...

The term polybrominated biphenyls or polybromobiphenyls (PBBs) refers to a group of halogenated hydrocarbons, formed by substituting hydrogen by bromine in biphenyl. PBBs are not known to occur as natural products. They ...

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 ...

Acetonitrile (CH3CN) is a by-product of acrylonitrile manufacture. It may also be formed by the combustion of wood and vegetation. It is a liquid with an ether-like odour. Acetonitrile is a volatile, highly polar ...

Barium is one of the alkaline earth metals, having a relative atomic mass of 137.34 and an atomic number of 56. It has seven naturally occurring stable isotopes, of which 138Ba is the most abundant. Barium is a ...