Basic Chromium Sulphate
Basic chromium sulfate is an inorganic compound with the chemical formula Cr(OH)(SO4). It is a green, odorless solid at room temperature. It is typically sold in powder form. Basic chromium sulfate has high tanning power and hence largely used in the tanning of leather. It is easily soluble in cold water and very soluble in hot water. Chromium, particularly in the hexavalent oxidation state, is toxic, hence basic chromium sulfate, which is comparatively less toxic, is preferred in the leather industry.
Specifications
| IUPAC Name | Chromium (III) hydroxide sulfate |
|---|---|
| CAS Number | 10101-53-8 |
| HS Code | 3202.90.00 |
| Formula | CrH3O12S |
| Appearance | Green Powder |
| Common Names | Chromedol, basic chromic sulfate |
| Packaging | 800 @ 25 kg PP/PE bags, 20 MT / 20FCL |
Applications
Leather Industry:
Basic chromium sulphate can be used in the tanning and re-tanning of any kind of leather,
for example, even hides and skin. This process is commonly referred to as chrome tanning.
Basic chromium sulphate is regarded as the most efficient and effective tanning agent.
The basic chromium sulphate dissolves to give rise to products, that at high pH, undergo a process
called olation to give polychromium compounds that are responsible for the cross linking of the
collagen subunits, thus being the most active part of the tanning process.
Others:
Basic chromium sulfate can also be used in making ceramics, green ink and organic substances.
It can also be used for dyeing and printing.