65996-93-2
中文名稱
煤焦油
英文名稱
Coal tar
CAS
65996-93-2
更新日期
2024/09/30 20:42:01
物理化學(xué)性質(zhì)
熔點(diǎn)30-180 °C
沸點(diǎn)>250 °C
密度>1 g/cm3
蒸氣壓0-0Pa at 20℃
溶解度Slightly soluble in water; partly soluble in ethanol , in ether and in volatile oils.
形態(tài)As stated by ACGIH:
The pitch of coal tar is the black or dark brown amorphous residue that remains after the redistillation process. The volatiles contain a large quantity of lower molecular weight polycyclic hydrocarbons. As these hydrocarbons (naphthalene, fluorene, anthracene, acridine, phenanthrene) sublime into the air there is an increase of benzo(a)pyrene (BaP or 3,4-benzpyrene) and other higher weight polycyclic hydrocarbons in the tar and in the fumes. Polycyclic hydrocarbons, known to be carcinogenic, are of this large molecular type.
The pitch of coal tar is the black or dark brown amorphous residue that remains after the redistillation process. The volatiles contain a large quantity of lower molecular weight polycyclic hydrocarbons. As these hydrocarbons (naphthalene, fluorene, anthracene, acridine, phenanthrene) sublime into the air there is an increase of benzo(a)pyrene (BaP or 3,4-benzpyrene) and other higher weight polycyclic hydrocarbons in the tar and in the fumes. Polycyclic hydrocarbons, known to be carcinogenic, are of this large molecular type.
水溶解性1.54μg/L at 20℃
Dielectric constant2.0（Ambient）
LogP6.13 at 20℃
(IARC)致癌物分類1 (Vol. 35, Sup 7, 100F) 2012
EPA化學(xué)物質(zhì)信息High-temperature coal tar pitch (65996-93-2)
