C.A.S.No.: 39380-78-4    
Chemical Formula: Cr(OH)_m(SO₄)_n XH₂O

Form: Amorphous dark green powder         
Water solution PH: 2.0<3.0

Characteristic: Good for tanning character, dried by anti-high temperature steam tank, non-toxic, good solubility

Properties: good solubility, stable PH indicator (alkalinity average), low water insoluble content, no dust pollution, reducing harmfulness of health

Specification

                              First Class    Second Class   Qualified

Purity (Cr₂O₃) %           24-26           21-23           21-23

Alkalinity %                33±1 Max     40±2 Max      33±1 Max

Fe %                            0.1% Max

Water insoluble %          0.1% Max

Application: Leather-making, leather tanning.

Packing: 25 Kg Paper-plastic woven bag, maximum 20 metric tons loaded in one 20” FCL container.

Transport and Storage: because of non toxic, free special treatment, to be stored in closed warehouse, keep dry, avoiding direct sunlight, moisture-proof.