Leather Chemicals - Chrome-free Tannin Agent is main tanning agent for chrome free leathers. Leather Chemicals - Chrome-free Tannin Agent DITITAN T800 Specifications: Appearance: Colorless to amber liquid Charge: Cationic Activity (%): 49 ± 2.0 pH value (1:9): 2.5 ~ 4.5 Characteristics:(1) Used as a main tanning agent for wet white leather;(2) Have antiseptic effect;(3) Imparts leather whiteness ...