
Chromium Oxalate Solution (trivalent chromium complex, max. 0.05% chloride) supplied wholesale by Zyntex. For trivalent passivation of zinc-plated parts, catalyst impregnation and textile mordanting. CoA and SDS with every lot.
Chromium oxalate solution is a clear, intensely dark green aqueous solution of chromium(III) oxalate complexes. Because chromium is in the trivalent state, it is far less hazardous than hexavalent chromium compounds such as Chromic Acid, and the low chloride content (max. 0.05%) suits corrosion-sensitive applications.
Metal finishers use trivalent chromium complexes such as chromium oxalate in passivation baths for zinc and zinc-alloy plated parts, which have replaced hexavalent chromate passivation in many industries. Similarly, catalyst producers use it as a soluble chromium source for impregnating supports, and textile producers use chromium complexes as mordants in dyeing.
Furthermore, other trivalent chromium compounds in our range include Chromium (III) sulfate hydrate and Chromium (III) nitrate.
Typical uses include, for example:
🔩 Trivalent Passivation
Chromium source for passivating zinc-plated parts.
⚗️ Catalysts
Soluble chromium for catalyst impregnation.
👕 Textiles
Mordant in dyeing processes.
🧪 Chromium Chemistry
Precursor for other chromium(III) compounds.
| Parameter | Standard Value |
|---|---|
| Product Name | Chromium Oxalate Solution |
| Appearance | Clear, intense dark green aqueous solution |
| Chromium Oxidation State | Trivalent (Cr III) |
| Chloride (Cl) Impurity | Max 0.05% |
| Physical State | Liquid coordination compound |
| Documents | CoA as well as SDS with every lot |
⚠️ Safety & Handling: May cause skin and eye irritation and allergic skin reactions; harmful if swallowed because of its oxalate content. Avoid contact and also wear gloves and eye protection. Store in tightly closed containers away from strong oxidizers, which can convert chromium(III) into toxic chromium(VI). Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Why is trivalent chromium preferred over hexavalent chromium?
Because trivalent chromium is far less toxic, it allows passivation and other treatments without the strict restrictions on hexavalent chromium.
What does the low chloride content mean?
Chloride can cause corrosion in metal finishing, so a maximum of 0.05% makes the solution suitable for sensitive processes.
How can I get a price and documents?
Prices depend on quantity, packaging and destination, so please contact us with your required volume. We then send a quotation together with the CoA and SDS.