Basic Chromium Sulfate Produced from Chromite
Application:
The main use of this product is in the leather industry, which turns the leather into Wet Blue intermediate. This material makes the leather soft and smooth and also increases the leather gloss.
Product Introduction:
Basic chromium sulfate is a compound or mineral salt with the chemical formula Cr2(SO4)3.x(H2O), which is mainly used in the tanning stages of sheep and cow skins to produce leather. This composition is in a watery form (15 or 18 water) with a green color and very soluble in water.
Technical Specifications:
This compound is produced by the reaction of sodium dichromate with sulfur
dioxide gas: Na2Cr2O7 + 3 SO2 + H2O → Cr2(SO4)3 + 2 NaOH Sulfur dioxide gas is oxidized to sulfate and turns VI or hexavalent chromium into III or trivalent chromium. The side product is sodium hydroxide: the sodium hydroxide produced can be neutralized sulfuric acid and produce sodium sulfate, which can be present up to 33% in the final product due to the lack of effect in the tanning stages of the skin. 6-valent chromium is a carcinogenic agent, and as a result, one of the important points in the production of this product is the conversion of all 6-valent chromium into 3-valent chromium. The primary material of the company’s product production is chromite ore, which is transformed into sodium dichromate by going through several stages and finally transformed into chromium sulfate by the reaction that was mentioned at the beginning.
Advantages:
Good quality
International Standards or Permission:
Confirmation of the acceptable percentage of chromium VI from POLO TECHNOLOGICO CONCIARIO (Italy)
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Type | This product is a final B2B consumer product. |