配方类型:

LEATHER

配方说明:

Syntan (Synthetic Tanning Agent) (U.S. Patent 2,606,613)

配方组成:

Sulfuric Acid/700
Rosin/12
Heat for 1.5 hours at 125'C. and add at 95'C
Phenol/400
Cresol/400
Formaldehyde/675
Water/1200
\b-Naphthol/720

配制方法:

Adjust the pH with ammonia and acetic acid.