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Polybrominated Biphenyls - Environmental Health Criteria 152
(1994)
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 - Environmental Health Criteria 108
(1991)
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 - Environmental Health Criteria 154
(1993)
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 - Environmental Health Criteria 107
(1990)
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 ...
Hexachlorobutadiene - Environmental Health Criteria 156
(1994)
Hexachlorobutadiene is a non-flammable, incombustible, clear, oily and colourless liquid at ordinary temperature and pressure. It is poorly soluble in water but miscible with ether and ethanol. Hexachlorobutadiene is not ...
Copper - Environmental Health Criteria 200
(1998)
Copper is a reddish-brown, ductile and malleable metal. It belongs to group IB of the Periodic Table. In compounds found in the environment it usually has a valence of 2 but can exist in the metallic, +1 and +3 valence ...
Methyl Tertiary-Butyl Ether - Environmental Health Criteria 206
(1998)
Methyl tertiary-butyl ether (MTBE) is one of several ethers that may be used as fuel additives and is currently by far the dominant one. Ethyl tertiary-butyl ether (ETBE), tertiary-amyl methyl ether (TAME), tertiary-amyl ...
Diazinon - Environmental Health Criteria 198
(1998)
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 ...
Hexachlorobenzene - Environmental Health Criteria 195
(1997)
Hexachlorobenzene (HCB) is a chlorinated organic compound with moderate volatility. It is practically insoluble in water, but is highly lipid-soluble and bioaccumulative. Technical grade HCB contains up to 2% impurities, ...
Chrysotile Asbestos - Environmental Health Criteria 203
(1998)
Chrysotile is a fibrous hydrated magnesium silicate mineral that has been used in many commercial products. It is widely used in global commerce today. Its physical and chemical properties as a mineral are observed to vary ...