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Pitch, coal tar, high-temp.

Pitch, coal tar, high-temp. structure

Pitch, coal tar, high-temp. 

structure

Description

A nearly black, viscous liquid. On exposure to air, the viscosity gradually increases. It burns in air with a luminous, sooty flame. It has a weight per mL of about 1.15 g. The term “coal tar products,” as used by NIOSH, includes coal tar and two of the fractionation products of coal tar, creosote and coal tar pitch, derived from the carbonization of bituminous coal. Coal tar, coal tar pitch, and creosote (coal tar creosote 8001-58-9) derived from bituminous coal often contain identifiable com

Characteristics

>1 g/cm3

30-180 °C

>250 °C

Pitch, coal tar, high-temp. Use and Manufacturing

Used in treatment of psoriasis. Coal tar pitch is used as a base for paints and coatings, as a binder for carbon electrodes, for impregnating fiber pipe, in briquetting coal, in foundry core compounds, as a plasticizer for elastomers and polymers, as extenders, saturants, impregnants, and sealants, and in paving and roofing. Occupations with potential exposures to coal tar, coal tar pitch.

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