Coal Tar
(kole tar).
» Coal Tar is the tar obtained as a by-product during the destructive distillation of bituminous coal at temperatures in the range of 900 to 1100. It may be processed further either by extraction with alcohol and suitable dispersing agents and maceration times or by fractional distillation with or without the use of suitable organic solvents.
Packaging and storage— Preserve in tight containers.
Residue on ignition 281: not more than 2.0%, from 100 mg.
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Topic/Question Contact Expert Committee
Monograph Feiwen Mao, M.S.
Senior Scientific Liaison
(SM32010) Monographs - Small Molecules 3
USP35–NF30 Page 2750