Chromium alum is used in the tanning of leather as chromium (III) stabilizes the leather by cross linking the collagen fibers within the leather.
Chrome alum can be added to other alum to grow lavender or purple crystals.
It is commonly used to prepare a chrome alum fixing bath as well as a hardening agent for gelatin.
- 500g Chromium Potassium Sulphate, high quality product,purple alum,chrome alum,tanning of leather,emulsions in photographic film
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