煤焦油 基本信息
煤焦油 性质
| 熔点 | 30-180 °C |
|---|---|
| 沸点 | >250 °C |
| 密度 | >1 g/cm3 |
| 蒸气压 | 0-0Pa at 20℃ |
| 溶解度 | 微溶于水；部分溶于乙醇、乙醚和挥发油。 |
| 形态 | 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. |
| 水溶解性 | 1.54μg/L at 20℃ |
| Dielectric constant | 2.0（Ambient） |
| LogP | 6.13 at 20℃ |
| (IARC)致癌物分类 | 1 (Vol. 35, Sup 7, 100F) 2012 |
| EPA化学物质信息 | High-temperature coal tar pitch (65996-93-2) |
类别
有毒物品毒性分级
高毒爆炸物危险特性
与空气混合, 受热、明火可爆可燃性危险特性
可燃; 火场分解有毒氮氧化物, 硫氧化物烟雾储运特性
库房通风低温干燥; 与氧化剂, 食品分开储运灭火剂
水, 泡沫职业标准
TWA 0.2 毫克/立方米； STEL 0.6 毫克/立方米安全信息
| 立即威胁生命和健康浓度 | 80 mg/m3 |
|---|