About this product
Zinc Oxide — ZnO, CAS 1314-13-2, also known as zinc white or Chinese white — is a white, odourless powder used as a vulcanisation activator in rubber compounding, as a white pigment, and as a technical-grade zinc compound in industrial formulations. We stock Rubber Grade RT-4 against the manufacturer's published specification (IS 9117 rubber-grade Zinc Oxide), at 99.0% min ZnO, in 25 kg bags. Stock is held at our Redhills warehouse in Chennai and dispatched across South India.
Applications & Uses
Safety & Technical Documents
MSDS / SDS
TDS / COA
Certificate of Analysis · with every supply, on request
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Product DataTechnical Specifications
Physical Properties
- Appearance
- White fine amorphous powder; odourless
- Purity
- ≥ 99.0% ZnO
- Solubility
- Practically insoluble in water; soluble in dilute acids and alkalis
Supply & Packaging
- Packaging
- 25 kg bag
- Grades Available
- Rubber grade (RT-4)Technical
- Lead Time
- Ex-stock to 5 working days
- Origin
- Domestic
Compliance & Storage
- HS Code
- 2817.00.10
- UN Number
- 3077
- Hazard Class
- Class 9 — Environmentally hazardous substance, solid (Packing Group III)
- Storage
- Cool, dry area. Keep away from strong acids and hydrogen sulphide.
- Shelf Life
- 36 months from manufacture
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 IndiaCoimbatoreMaduraiHosurBangaloreHyderabadVisakhapatnamKochi
Frequently Asked Questions
What is the CAS number and chemical formula of Zinc Oxide?
Zinc Oxide carries CAS number 1314-13-2 and the chemical formula ZnO. Its HSN code is 2817 00 10 (HS code 2817.00.10).
What is zinc oxide used for, especially in the rubber industry?
In rubber compounding Zinc Oxide is used as a vulcanisation activator. It is also used as a white pigment — zinc white or Chinese white — and as a technical-grade zinc compound in industrial formulations. We stock Rubber Grade RT-4, supplied against the manufacturer's published specification (IS 9117 rubber-grade Zinc Oxide).
What is the specification of your 99% rubber grade zinc oxide?
Our Rubber Grade RT-4 Zinc Oxide is a white powder assaying 99.0% min ZnO, with matter volatile at 105 °C 0.5% max, loss on ignition 0.5% max, acidity (as H₂SO₄) 0.1% max, matter insoluble in HCl 0.05% max and lead (as Pb) 0.005% max. Specific surface area (BET) is 3 – 10 m²/g, bulk density 0.5 – 1.6 g/cc and residue on 325 mesh 1.0% max. Full values are on our technical data sheet SPC-TDS-PWD-005.
Is zinc oxide soluble in water?
No. Zinc Oxide is practically insoluble in water. It is soluble in dilute acids and alkalis.
How is zinc oxide packed, and can I get it in Chennai?
We supply Zinc Oxide in 25 kg bags. Stock is held at our Redhills warehouse in Chennai and dispatched across South India — order sizes depend on packaging and current stock. For a quote, call or WhatsApp +91 86087 80096.
What is the UN number and hazard class for zinc oxide, and how should it be stored?
Zinc Oxide ships as UN 3077, Class 9 — environmentally hazardous substance, solid (Packing Group III). It is a non-flammable powder but harmful to aquatic life; avoid dust inhalation and use a protective mask and gloves. Store in a cool, dry, covered area away from strong acids and hydrogen sulphide; shelf life is 36 months from manufacture. The full MSDS/SDS is available on the product page.
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Product Details
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