Products Description
The alkalinity is stable and controllable, with low iron and insoluble substances and other impurities; it has good solubility, uniform tanning penetration, and a high chromium absorption utilization rate. The blue wet leather produced has a fine grain surface, full and soft skin texture, meets the shrinkage temperature standards, good dyeing effect, stable batch quality, and is suitable for various leather main tanning and re-tanning production, including cowhide and sheepskin.
Products Specification
| Product name | Basic chromic sulfate |
| CAS NO | 39380-78-4 |
| ITEM NO | M374 |
| Appearance | Bright green powder. |
| Purity | 24-26% |
| Basicity | 32-42 |
| Density | 1.7 |
| Melting point | 90°C |
| Package | 100g/1kg/10kg etc. |
| Delivery | 2-3days |
| Storage | room temperature |
| MSDS/COA/TDS | Connect us |
|
Item |
Analysis (%) |
|
Cr(OH)SO4 |
98.15 |
|
Cr2O3 |
25.8 |
|
Alkalinity |
33 |
|
Fe |
0.006 |
|
Ca |
0.02 |
|
K |
0.01 |
|
Al |
0.003 |
|
Water-fast |
0.05 |
Products Application
1. Dye and textile printing/dyeing industries: Used in the production of reactive black dyes and as a mordant in printing and dyeing processes.
2. Ceramics and ink industries: Used to produce ceramic glazes and green inks.
3. Other chemical sectors: Serves as a raw material for producing chromium hydroxide and other chromium salts; also used in applications such as trivalent chromium electroplating.
FAQ
Q: Does the basicity level affect the tanning time?
A: Yes, it does. A lower basicity level results in faster penetration and a shorter tanning time, whereas a higher basicity level leads to slower penetration and a longer tanning time.
Q: Will storage in a high-temperature environment alter the product's performance?
A: Yes. High temperatures accelerate moisture absorption and clumping and cause changes in basicity, which affects tanning performance; therefore, storage in a cool, dry place is recommended.
Q: How is the product's dissolution rate?
A: The flake form dissolves relatively slowly, while the powder dissolves more quickly; both dissolve completely in water with normal stirring.
Q: Could the product still be used if it has clumped?
A: If there is only slight clumping, it can be used after stirring until dissolved; however, severe caking hinders dissolution, so it is not recommended for leather tanning.
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