Technical Specifications:
    Cr₂O₃ %: 26%
    Basicity % : low (331)%     high(401)%
    Insolubles % : 0.1%     PH(1:10): 2.8-4.0

Applications:
Initial & supplementary tanning of leather & fur, esp high-grade leathers.

Product Features:
Made by sulphur reductant technology and high-speed centrifugal spray-drying processes. Stable quality, high solubility , giving even absorption without chrome residues. Its high chrome content necessitates addition of tanning agents. The leather surface is fine & smooth, with even luster & fine handle & resilience. Easy to use & measure, giving uniform leather quality.

Packing,storage & handling:
Packed in moisture-proof paper bags. Net weight 25kg. The product is chemically non-dangerous but should be stored in a well-ventilated cool place.

Recommended Quantities:
Suitable for primary tanning, at the rate of 5-7% of the weight of the leather.

Recommended use:
Based on bare leather weight: Picking fluid ratio: 1.0-0.8;
+ Salt: 5-8% rotate 5 minutes; + Sulphuric acid: (66Be)0.9-1.0% rorate 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 picking 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;
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.