Major components:
    Alkaline chromium sulphate
    Technical Index: Cr₂O₃%: 24%
    Basicity: low(331)%   high(401)%
    Insolubles %: 0.1%
    PH (1:10): 2.8--4.0

Applications:
Leather & fur tanning, particularly high-grade leathers.

Product Features:
Made by sulphur dioxide reductant technology and high-speed centrifugal spray-drying processes. The product is of stable quality, high solubility % masking capability, giving even absorption with very low chromate residue. The leather surface is fine & smooth, with even luster and fine handle & resilience. Easy to use & measure, giving uniform leather quality.

Packing, storage & transport:
Packed in moisture-proof paper bags Net weight 25kg .
The product is chemically, bus should be stored in a well-ventilated dark place.

Recommended Quantities:
Low basicity agent is best used for primary tanning, at the rate of 5-7% of the weight of the leather. High-basicity agents is best for secondary processing at a rate of 3-5% blue leather weight according to its classification.

Recommended use:
Based on bare leater weight:
Pickling fluid ratio: 1.0-0.8;+Salt: 5-8% rotate 5 minutes; +Sulphuric acid: (66°Be)0.9-1.0% rotate 3 hours;

+Formic acid: 0.5% rotate 2 hrs; Hold in drum overnight until PH reaches 2.8-3.2.

Tanning:
Pour off part of the pickling fluid, tan in the remainder;
Fluid ratio; 0.5-0.8; +Cationic oil:1.0-1.5%; rotate for 30 minutes;+Chrome tanning agent:5-7% rotate for 4 hours; +Add hot water to achieve fluid ratio of 2; Immerse hides until temperature reaches 35-42;Increasing PH. gradually to 3.8-4.0 with dilute sodium bicarbonate liquor, continue rotating 4 hours; Hold in drum overnight, rotate a further 30 minutes next morning before removing from the drum.