About this product
We stock technical-grade sodium nitrite (NaNO2, CAS 7632-00-0) — also listed as nitrous acid, sodium salt — manufactured by GNFC to IS 879 with 98.0% minimum assay on a dry basis. It is a white to pale yellow crystalline oxidiser (UN 1500, Class 5.1) used as a nitrite source in industrial chemical synthesis. It is a different salt from sodium nitrate (NaNO3, CAS 7631-99-4) — specify which one you need on your enquiry. We supply 50 kg HDPE bags from our Redhills, Chennai warehouse, with dispatch across South India.
Applications & Uses
Safety & Technical Documents
MSDS / SDS
TDS / COA
Certificate of Analysis · with every supply, on request
Product DataTechnical Specifications
Physical Properties
- Appearance
- White to pale yellow crystals
- Purity
- 98.0% min (NaNO2, dry basis)
- Assay
- 98.0% mass min as NaNO2 on dry basis (IS 879)
- pH
- 7.0–9.0 (5% solution)
Supply & Packaging
- Packaging
- 50 kg HDPE woven bags with LDPE liner
- Grades Available
- IS 879 — Technical Grade
- Origin
- Domestic
Compliance & Storage
- HS Code
- 2834 10 10
- UN Number
- 1500
- Hazard Class
- Class 5.1 — Oxidiser
- Storage
- Cool, dry place in tightly closed containers. Keep away from combustible/organic material, acids and reducing agents.
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 the CAS number of sodium nitrite?
Sodium nitrite has CAS number 7632-00-0 and the chemical formula NaNO2. Its HSN code is 2834 10 10, and it is also known as nitrous acid, sodium salt.
What is the IS 879 technical grade specification for sodium nitrite?
The material we stock is made to IS 879 technical grade: sodium nitrite 98.0% mass min on a dry basis, sodium nitrate 1.0% max, sodium chloride 0.30% max, matter insoluble in water 0.10% max, and loss on drying at 105 °C 1.0% max. Appearance is white to pale yellow crystals with a 5% solution pH of 7.0 to 9.0.
What is the difference between sodium nitrite and sodium nitrate?
They are two distinct salts. Sodium nitrite is NaNO2, CAS 7632-00-0, supplied to IS 879 technical grade at 98.0% min; sodium nitrate is NaNO3, CAS 7631-99-4, supplied to IS 5058 at 99.0% min. We stock both as separate catalogue products, so specify the salt and the standard on your enquiry.
How is sodium nitrite packed, and can I buy it in Chennai?
We supply sodium nitrite in 50 kg HDPE woven bags with an LDPE liner, held at our Redhills, Chennai warehouse with dispatch across South India. Order sizes depend on packaging and current stock — call or WhatsApp +91 86087 80096 for a quote.
Is sodium nitrite hazardous to store and handle?
Yes. Sodium nitrite is an oxidiser (UN 1500, Class 5.1) and is toxic if swallowed. Keep it away from combustible and organic material, acids and reducing agents, and store it cool and dry in tightly closed containers.
Where can I get the sodium nitrite TDS and MSDS?
Our technical data sheet for sodium nitrite is document SPC-TDS-PWD-021, and an MSDS is available for the same material. Both can be downloaded from this product page or requested on call or WhatsApp at +91 86087 80096.
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