About Chrome Alum
Chrome Alum (chromium potassium sulfate) is the classic trivalent-chromium tanning agent used to cross-link collagen fibres in leather, producing the soft, heat-resistant, water-resistant "wet blue" leather standard in the tanning industry. It's also used in specialty surface-treatment and mordanting applications.
Also Known As
Chromium potassium sulfate, Potassium chromium alum
Effective Collagen Cross-Linking
Produces soft, durable, heat- and water-resistant leather
High Purity (98% min)
Consistent tanning performance batch to batch
Odourless Powder
Easier handling in the tannery compared with liquid tanning agents
Multi-Purpose
Also used in mordanting and specialty surface-treatment applications
Packaging Details
- Standard: 25kg moisture-resistant bags
- Custom packaging available on bulk contract orders
Storage & Handling
- Store in a cool, dry, well-ventilated warehouse
- Keep bags sealed to prevent moisture absorption
- Standard PPE recommended — gloves and dust mask
View Safety Data Sheet (SDS) →
Frequently Asked Questions
Chromic Acid Solution
Ready-to-use chromic acid solution available in 25%–50% concentrations for chrome plating, passivation, and plastics etching.
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Sodium Dichromate Solution
Sodium dichromate solution for passivation of stainless steel, steel, and aluminium — also used as a corrosion inhibitor and in leather tanning.
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Potassium Dichromate
Potassium dichromate for surface passivation in acid baths and as an oxidant in ink, dye, and pigment manufacturing.
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Chromium (III) Chloride
Chromium trichloride for trivalent chrome plating and specialty surface treatment applications.
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