Coal 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.
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.
281:
not more than 2.0%, from 100 mg.
Auxiliary Information—
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| Topic/Question | Contact | Expert Committee |
| Monograph | Feiwen Mao, M.S.
Scientist 1-301-816-8320 |
(MDOOD05) Monograph Development-Ophthalmics Oncologics and Dermatologicals |
USP32–NF27 Page 2007