About this product
We import anhydrous chromic acid — chromium trioxide (CrO3), CAS 1333-82-0 — as technical-grade dark red crystalline flakes, 99.7% min CrO3, sourced from Sisecam's Mersin Kromsan plant in Turkiye. It is a strong industrial oxidiser; buyers dissolve it in water on site to prepare chromic acid solutions for their processes. We stock 25 kg and 50 kg drums at our Redhills, Chennai warehouse, supplied against the manufacturer's Certificate of Analysis, with dispatch 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
- Dark red/orange crystalline solid or flakes; strong oxidising odour
- Purity
- ≥ 99.0% CrO₃
- Solubility
- Highly soluble in water (forming chromic acid solution)
Supply & Packaging
- Packaging
- 25 kg HDPE bag (double-lined)50 kg HDPE bag
- Grades Available
- TechnicalIndustrial
- Lead Time
- 5–10 working days
- Origin
- Imported
Compliance & Storage
- HS Code
- 2819.10.00
- UN Number
- 1463
- Hazard Class
- Class 5.1 — Oxidising solid; Class 6.1 — Toxic; Class 8 — Corrosive (Packing Group II)
- Storage
- Cool, dry, well-ventilated area. Segregate from combustibles, organics, and reducing agents. HIGHLY TOXIC AND OXIDISING — handle with full PPE.
- Shelf Life
- 24 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 of chromic acid?
The chromic acid we supply is anhydrous chromium trioxide (CrO3), CAS 1333-82-0. Chromic acid solution (H2CrO4) carries a different CAS number — it is a separate substance, not this product.
Is chromic acid the same as chromium trioxide?
In industrial trade, yes. The product sold as chromic acid is anhydrous chromium trioxide (CrO3), CAS 1333-82-0 — also known as chromium(VI) oxide or chromic anhydride. Dissolved in water, it forms chromic acid solution.
What specification does SPC's chromic acid meet?
Technical-grade anhydrous flakes with 99.7% min CrO3 by mass, per the manufacturer's Certificate of Analysis (Sisecam, Mersin Kromsan Plant). Impurity limits: sulphate 0.07% max, chloride 0.003% max, iron 0.001% max, water-insoluble matter 0.004% max.
What is the HSN code for chromic acid?
Chromic acid (chromium trioxide) falls under HSN code 2819 10 00. Our technical data sheet SPC-TDS-ACD-011 lists it alongside CAS 1333-82-0 for customs and GST documentation.
Where can I buy chromic acid in Chennai?
We import chromic acid from Sisecam's Mersin Kromsan plant in Turkiye and stock it at our Redhills, Chennai warehouse in 25 kg and 50 kg drums, with dispatch across South India. Order sizes depend on packaging and current stock — call or WhatsApp +91 86087 80096 for a quote.
How should chromic acid be stored and handled?
Chromic acid is a strong oxidiser, corrosive, and a confirmed human carcinogen — UN 1463, Class 5.1 oxidising solid, also classified toxic (6.1) and corrosive (8), Packing Group II. Store it sealed in a cool, dry area away from combustibles and organics, and handle with full PPE. Shelf life is 24 months from manufacture.
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Product Details
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