Industrial chemicals · Taylor, TXSafety Data SheetSafety Data Sheet · GHS Rev. 9
Sodium Bisulfite 25% Solution – Technical Grade (NaHSO3)
25%
The full PDF includes all 16 GHS sections including first-aid, fire-fighting, accidental release, exposure controls, stability, and ecological information.
Identification
- Product Identifier
- Sodium Bisulfite 25% Solution – Technical Grade (NaHSO3)
- Concentration
- 25%
- CAS Number
- 7631-90-5
- Chemical Formula
- HNaO3S
- Molecular Weight
- 104.06 g/mol
- Manufacturer
- Alliance Chemical
204 South Edmond Street, Taylor, TX 76574 - Emergency Phone
- Chemtel 1-800-255-3924 (24/7)
- Recommended Use
- Industrial / laboratory chemical. See Section 7.
Hazard Identification
- Signal Word
- Warning
Full hazard statement text and pictograms are listed in the downloadable SDS PDF. The codes above conform to GHS Rev. 9.
Physical & Chemical Properties
- Form
- Liquid
- Odor
- Slight sulfurous odor
- Density
- 1.48 at 68 °F (USCG, 1999) - Denser than water; will sink g/cm³
- Boiling Point
- Decomposes (NIOSH, 2024) °C
- Melting Point
- Decomposes (NIOSH, 2024) °C
- Flash Point
- Not applicable (aqueous solution; not classified as flammable) °C
- Vapor Pressure
- Vapor pressure, kPa at 20 °C: 2.4 mmHg
- Solubility
- 29 % (NIOSH, 2024)
Values shown reflect product-specific canonical data. Lot-specific ranges may vary; see the Certificate of Analysis for the shipped lot.
Transport Information
US DOT (49 CFR)
- UN Number
- UNUN2693
- Proper Shipping Name
- Bisulfites, aqueous solutions, n.o.s. (Sodium bisulfite)
- Hazard Class
- 8
- Packing Group
- III
IMDG / IATA classifications may differ. Refer to the downloadable SDS PDF for international transport details. Verify current regulations before international shipment.
Alliance Chemical, 204 South Edmond Street, Taylor, TX 76574. This summary reflects canonical regulatory data on file; refer to the full SDS PDF for the complete regulatory record.