Basic chromium sulphate, often used in leather tanning process

We are leading manufacturer of basic chromium sulphate from China. We have both 21%-23% and 24%-26% grades. Details are as follow:

Cr2O3 21%-23%
Basicity 32%-34%
Water insoluble matter 0.1% max
Fe 0.1% max

Cr2O3 24-26%
Basicity 32-34%
Water insoluble matter 0.1%MAX
Fe 0.1%MAX

Package: 25kg plastic weaving bag
Quantity/fcl: 20mts
Non-hazardous goods
Appearance: dark green powder