component: straight chain or isomerized long-chain fatty acids and fatty acid derivatives, as well as some hydrocarbons, sterols, proteins, glial and other plant-based impurities
Character: Black oily viscous liquid
Source: Byproducts from various vegetable oil hydrolysis and distillation production processes
Usage field: Used for producing casing binders, rubber softeners, cement prefabricated isolation agents, black printing inks, asphalt coatings, surface activated carbon, leather additives, and heavy fuels.
| Indicator Name | Index |
| Aacid Value（mgKOH/g） | ≤45 |