| Name | synthetic tanning agent DLT-3 |
| Synonyms | LS type synthetic tanning agent Synthetic tanning agent DLT-3 |
| PH | 3.0~4.5 |
| Physical and Chemical Properties | Chemical properties dark brown viscous liquid rest, easily soluble in water. It is a mixed tanning agent. It has good permeability, filling property, solid leather and wear resistance. |
| Use | It can be combined with vegetable tanning agents or chrome tanning agents to tanning pig and cow sole leather to prevent rust from entering. |
| Caution | Irritating, pay attention to protection. Wash immediately with soap and water if it gets on the skin. Do not come into contact with iron products. Place in a cool and ventilated warehouse. This produc |
First, phenol is sulfonated with sulfuric acid, and then condensed with formaldehyde to obtain phenol sulfonic acid formaldehyde condensate. The pulp waste liquid is then treated with caustic soda, and the two are condensed to obtain the finished product.