Sodium Dichromate (Dihydrate)
Orange-red crystalline solid, deliquescent · CAS 7789-12-0
Overview
Sodium Dichromate (Dihydrate) (CAS 7789-12-0) is one of the metal salts & inorganic compounds products Suraj Chemicals supplies to industrial, institutional and manufacturing buyers across India from our Chennai base. It is commonly used for chrome tanning in leather manufacture; chromium electroplating and anodising bath makeup; raw material for chrome pigments and other chromium-chemical manufacture, among other applications in the metal salts & inorganic compounds category. We pack Sodium Dichromate (Dihydrate) in 25/50 kg HDPE bags/drums, and can arrange bulk, drum or tanker quantities for larger requirements — full characteristics, applications and downloadable documentation are below, or you can request a quote directly.
Specification Sheet — Characteristics
Download Specification Sheet (PDF)| Characteristics | Specifications |
|---|---|
| Assay (Na2Cr2O7·2H2O) | 99% Min |
| Chloride (as Cl) | 0.05% Max |
| Sulphate (as SO4) | 0.3% Max |
| Water Insoluble Matter | 0.1% Max |
Values above are well-established typical/standard specification properties for this product, compiled from published technical references — not a batch-specific lab report. Figures can vary batch to batch — request a current certificate of analysis with your order.
Applications
- Chrome tanning in leather manufacture
- Chromium electroplating and anodising bath makeup
- Raw material for chrome pigments and other chromium-chemical manufacture
- Corrosion-inhibitor and oxidising-agent formulation
Frequently Asked Questions
What is Sodium Dichromate (Dihydrate)?
Sodium Dichromate (Dihydrate) is supplied by Suraj Chemicals as orange-red crystalline solid, deliquescent, identified by CAS number 7789-12-0. It falls under our Metal Salts & Inorganic Compounds range — see the Specification Sheet table above for its full characteristics.
What is Sodium Dichromate (Dihydrate) used for?
Typical applications include: Chrome tanning in leather manufacture; Chromium electroplating and anodising bath makeup; Raw material for chrome pigments and other chromium-chemical manufacture; Corrosion-inhibitor and oxidising-agent formulation.
How should Sodium Dichromate (Dihydrate) be stored and handled?
Contains hexavalent chromium — TOXIC and classified as a carcinogen; also a strong oxidiser and corrosive. Store away from combustible, organic and reducing materials, in a dry, well-ventilated, dedicated area. Handle strictly per SDS with full PPE (gloves, eye/respiratory protection) and in compliance with local regulations governing hexavalent chromium compounds.
What packaging and pack sizes does Suraj Chemicals supply Sodium Dichromate (Dihydrate) in?
25/50 kg HDPE bags/drums. Contact us if you need a different pack size, or a bulk/tanker quantity.
What is the shelf life of Sodium Dichromate (Dihydrate)?
Typically 3–6 months from date of manufacture when stored sealed, in a cool place away from direct sunlight and heat. Active content in hypochlorite / oxidising products declines gradually over time, so this is one to watch closely. As with any industrial chemical, request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.
Is Sodium Dichromate (Dihydrate) hazardous to handle?
Yes — Sodium Dichromate (Dihydrate) is corrosive to skin, eyes and common metals; an oxidizing agent and should be kept away from combustible or organic material; combustible and should be kept away from heat and ignition sources. Follow the storage and handling guidance above, use appropriate PPE, and download the Safety Data Sheet (SDS/MSDS) in the sidebar above for full GHS hazard, handling and PPE details.
Is a Specification Sheet, TDS or MSDS available for Sodium Dichromate (Dihydrate)?
Yes — a downloadable Specification Sheet (PDF) with full characteristics and specifications is available above, and a downloadable Safety Data Sheet (SDS/MSDS) for Sodium Dichromate (Dihydrate) is also available above.
Can I get a sample or discuss order quantity for Sodium Dichromate (Dihydrate)?
Yes — use the Request Price & Availability button or WhatsApp us with your required quantity, and our team will confirm pricing, minimum order quantity, sample availability and delivery timelines for Sodium Dichromate (Dihydrate).