About this product
Sodium Bromate (NaBrO3, CAS 7789-38-0) is a white crystalline powder and a strong inorganic oxidiser, supplied anhydrous — no hydrate of sodium bromate is registered in ECHA CHEM or PubChem. Its main industrial use is in textile dyeing, where it oxidises sulphur and vat dyes; it is also used with sodium bromide to dissolve gold from its ores, in boiler cleaning, as an analytical oxidimetric reagent, and as the oxidiser in hair-care neutraliser formulations. We supply technical grade to 99.50% min assay in 25 kg bags on pallets against confirmed orders, dispatched from Chennai across South India. It is a Class 5.1 oxidising solid, UN 1494, Packing Group II — handle strictly per the SDS on this page.
Applications & Uses
Safety & Technical Documents
MSDS / SDS
TDS / COA
Certificate of Analysis · with every supply, on request
Product DataTechnical Specifications
Physical Properties
- Appearance
- White crystalline powder (colourless cubic crystals)
- Purity
- ≥ 99.50%
- Assay
- 99.50% mass min (as NaBrO3)
- Density
- 3.34 relative density (water = 1); density also reported as 3.20 g/cm³
- Flash Point
- Not applicable — non-combustible inorganic oxidising solid; no flash point
- Boiling Point
- Not applicable — decomposes at 381°C before boiling
- Melting Point
- 381°C — decomposes at this temperature with evolution of oxygen; no separate melting point is reported
- pH
- Neutral in aqueous solution
- Solubility
- 36.4 g/100 mL in water at 20°C (27.5 at 0°C; 90.8 at 100°C); insoluble in ethanol
- Refractive Index
- 1.594
Supply & Packaging
- Packaging
- 25 kg bags on pallets (UN-certified packaging for Packing Group II solids, ADR packing instruction P002)
- Grades Available
- Technical Grade — 99.50% min assay
- Lead Time
- Indent item — supplied against confirmed order
- Origin
- Imported
Compliance & Storage
- HS Code
- 2829.90.20
- UN Number
- 1494
- Hazard Class
- Class 5.1 — Oxidising solid (Packing Group II); classification code O2; tunnel restriction code (E)
- Storage
- Cool, dry, well-ventilated area in sealed UN-certified bags on pallets. Strong oxidiser — segregate from organics, oils, jute, sawdust, sugar, sulphur, metal powders, carbon, acids, ammonium compounds and reducing agents. Store per NFPA 430 (storage of liquid and solid oxidisers). Avoid dust generation and inhalation.
These specs are indicative. Request a Certificate of Analysis (COA) for batch-specific values.
Source Manufacturers
Sourced directly from verified manufacturers for consistent quality and traceability.
Supplied across South IndiaCoimbatore · Madurai · Hosur · Bangalore · Hyderabad · Visakhapatnam · Kochi
Frequently Asked Questions
What is sodium bromate used for?
Sodium bromate's principal industrial use is as an oxidising agent in textile dyeing, where it oxidises sulphur and vat dyes. It is also mixed with sodium bromide to dissolve gold from its ores, used in boiler cleaning, used as an analytical reagent for oxidimetric (bromatometric) titration, and used as the oxidiser in hair-care neutraliser formulations. Sources: PubChem CID 23668195, Uses section, drawn from HSDB records citing the Merck Index, Hawley's Condensed Chemical Dictionary, Ullmann's Encyclopedia of Industrial Chemistry and CHEMCYCLOPEDIA; EU Cosmetics Inventory.
What is the CAS number of sodium bromate?
Sodium bromate carries CAS number 7789-38-0 and EC number 232-160-4, with the chemical formula BrNaO3 (NaBrO3) and a molecular weight of 150.89 g/mol. Sources: ECHA CHEM substance 100.029.237; PubChem CID 23668195. It is also known as bromic acid sodium salt, or simply NaBrO3. Three deprecated CAS numbers — 38869-75-9, 38869-76-0 and 2356137-58-9 — still turn up on older paperwork. We publish only 7789-38-0.
What specification does sodium bromate 99.5% meet?
We supply sodium bromate as a white crystalline powder with assay not less than 99.50% and moisture not more than 0.50%, packed in 25 kg bags on pallets. Typical physical values are relative density 3.34 (water = 1), water solubility 36.4 g/100 mL at 20 °C, and decomposition at 381 °C with evolution of oxygen. Sources: PubChem CID 23668195 experimental properties; IPCS/WHO ICSC 0196. A branded TDS and SDS are available on this page, and batch values are confirmed on the supplier's Certificate of Analysis.
Is sodium bromate hazardous, and how is it transported?
Yes. Sodium bromate is a strong oxidiser. It ships as UN 1494, SODIUM BROMATE, Class 5.1, classification code O2, Packing Group II, transport category 2, hazard identification number 50 and tunnel restriction code (E), per the ADR 2025 Table A entry. Special provision V11 requires packages to travel in closed or sheeted vehicles and containers. CV24 requires vehicles and containers to be thoroughly cleaned of combustible residue — straw, hay, paper, sawdust or jute — before loading. The ADR entry carries no environmentally hazardous substance mark; confirm marine pollutant status against the carrier's current IMDG edition before a sea booking.
Who supplies sodium bromate in Chennai?
We supply sodium bromate as an imported indent item from our Chennai operation — office at Periyamet and warehouse at Redhills — with dispatch across South India. Standard packing is 25 kg bags on pallets in UN-certified packaging rated for Packing Group II solids. Call or WhatsApp +91 86087 80096, or email admin@supremepetrochemicals.com, for a quote.
Is sodium bromate the same as potassium bromate?
No — they are different salts and must not be confused on paperwork or safety documents. Sodium bromate is NaBrO3, CAS 7789-38-0, and has no CLP Annex VI harmonised classification; the ECHA CHEM record for substance 100.029.237 carries no Annex VI index number. Potassium bromate is KBrO3, CAS 7758-01-2, and does carry a harmonised entry — CLP Annex VI index 035-003-00-6, Ox. Sol. 1 (H271), Acute Tox. 3 (H301), Carc. 1B (H350). That entry applies to the potassium salt only and must not be transferred to the sodium salt.
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