Sodium chromate
Sodium chromate (CAS: 7775-11-3, Na2CrO4) is a yellow, crystalline inorganic salt with a molecular weight of 161.97 g/mol. It is a strong oxidising agent and a source of soluble chromate ions. Sodium chromate finds applications in various industrial processes, including pigment production, metal surface treatment, and as a corrosion inhibitor. TSS supplies this essential chemical for research and industrial synthesis.
Pigment Production
Sodium chromate serves as a precursor in the synthesis of various chromium-based pigments, known for their vibrant colours and durability.
Corrosion Inhibition
It is utilised in water treatment and metal protection formulations to prevent corrosion, particularly in cooling systems and metalworking fluids.
Textile Dyeing
Sodium chromate can be employed as a mordant in the textile industry, helping to fix dyes to fabrics and improve colour fastness.
Chemical Synthesis
As a source of chromate ions, it is a valuable reagent in organic and inorganic synthesis for introducing chromium into various compounds.
| Molecular weight | 161.97 |
|---|---|
| Linear formula | Na2CrO4 |
| Assay | 98% |
| Form | solid |
Hazard statements
- H301Toxic if swallowed
- H312Harmful in contact with skin
- H314Causes severe skin burns and eye damage
- H317May cause an allergic skin reaction
- H330Fatal if inhaled
- H334May cause allergy or asthma symptoms if inhaled
- H340May cause genetic defects
- H350May cause cancer
- H360FD
- H372Causes damage to organs through prolonged exposure
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P201Obtain special instructions before use
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3288 6.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T+,N |
| Risk statements (R) | 45-46-60-61-21-25-26-34-42/43-48/23-50/53 |
| Safety statements (S) | 53-45-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Sodium Chromate used for?
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Sodium chromate is used in pigment production, as a corrosion inhibitor, in textile dyeing as a mordant, and in chemical synthesis.
What is the CAS number and chemical formula for Sodium Chromate?
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The CAS number is 7775-11-3 and the chemical formula is Na2CrO4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium Chromate with an assay of 98%. This is a technical/research grade material, and we do not represent it as USP, BP, or EP.
How should Sodium Chromate be handled safely?
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Sodium chromate is dangerous. Handle with extreme care, using full personal protective equipment including eyeshields, face shields, appropriate gloves, and a full-face particle respirator (e.g., N100 US type). Avoid inhalation, ingestion, and skin contact due to severe hazards including toxicity, corrosivity, and carcinogenicity.
How is Sodium Chromate packed and shipped?
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Sodium Chromate is shipped as UN 3288, Hazard Class 6.1, Packing Group II, conforming to ADR/RID regulations. TSS ensures compliant packaging and export documentation for international shipments.
How can I request a quote or sample of Sodium Chromate?
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Please contact our sales team via the website or direct email to request a quote or sample of Sodium Chromate.
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