The downloadable PDF is a print of this page and carries all 16 OSHA HCS sections.
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
CAS number
497-19-8
Structure
Structure · PubChem
Grade
Technical
Signal word
Warning
Hazards
Irritant / harmfulH319
Section 1
Identification
Product Identifier
Soda Ash Technical Grade
Grade
Technical
CAS Number
497-19-8
Molecular Weight
105.988 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.
Restrictions on Use
No restrictions identified beyond the conditions of safe use in Sections 7 and 8.
Section 2
Hazard Identification
Irritant / harmful
Classification
Serious eye damage/eye irritation, Category 2A
Signal Word
Warning
Hazard Statements
H319Causes serious eye irritation
Precautionary Statements
P264Wash hands and face thoroughly after handling.
P280Wear protective gloves, protective clothing, and eye/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+P313If eye irritation persists: Get medical advice or attention.
Classification, hazard (H) and precautionary (P) statements and pictograms per OSHA HCS 2024 (29 CFR 1910.1200, Appendices A–C), aligned with GHS Rev. 7.
Section 3
Composition / Information on Ingredients
Composition and information on ingredients
Component
CAS No.
Formula
Concentration
Soda Ash
497-19-8
CNa2O3
99.5-100% (w/w)
Concentrations are nominal; lot-specific values appear on the Certificate of Analysis. Components not contributing to classification are omitted.
Section 4
First-Aid Measures
Eyes
Rinse with plenty of water for at least 15 minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention immediately.
Skin
Immediately flush with plenty of water for at least 15 minutes while removing contaminated clothing. Wash with soap. Get medical attention immediately.
Inhalation
Move person to fresh air and keep comfortable for breathing. If breathing is difficult, give oxygen. If not breathing, give artificial respiration. Get medical attention immediately.
Ingestion
Do Not Induce Vomiting! Never give anything by mouth to an unconscious person. If conscious, wash out mouth with water. Get medical attention immediately.
Most Important Symptoms and Effects
Eye contact causes irritation: redness, pain and tearing.
Immediate Medical Attention and Special Treatment
Treat symptomatically. Get medical attention if symptoms develop or persist.
Section 5
Fire-Fighting Measures
Suitable Extinguishing Media
Use water spray, alcohol-resistant foam, dry chemical, or CO2. Use measures appropriate to local circumstances.
Unsuitable Extinguishing Media
Do not use a solid water stream as it may scatter and spread fire.
Specific Hazards Arising from the Chemical
Containers may rupture when heated.
Protective Equipment
Wear self-contained breathing apparatus and full protective clothing.
Hazardous Combustion Products
Sodium oxides and carbon oxides (carbon monoxide, carbon dioxide); carbon dioxide is released when it reacts with acids.
Section 6
Accidental Release Measures
Personal Precautions
Use PPE as described in Section 8. Ensure adequate ventilation. Evacuate personnel to safe areas.
Environmental Precautions
Prevent leakage or spillage from entering drains, sewers, or waterways.
Containment & Cleanup
Absorb with inert material. Collect in appropriate waste container. Dispose per applicable regulations.
Section 7
Handling and Storage
Safe Handling
Use with adequate ventilation. Avoid contact with skin, eyes, and clothing. Wash thoroughly after handling. Keep container closed when not in use.
Safe Storage
Store in a cool, dry, well-ventilated area. Keep away from incompatible materials (see Section 10). Keep containers tightly closed.
Specific Storage Precautions
Keep containers tightly closed in a cool, dry, well-ventilated place away from direct sunlight, acids and metals; protect from moisture (hygroscopic). Avoid raising dust.
Section 8
Exposure Controls / Personal Protection
Occupational Exposure Limits
No established occupational exposure limits.
Engineering Controls
Use adequate ventilation. Provide eyewash stations and quick-drench showers accessible to areas of use.
Eye/Face Protection
Wear chemical safety goggles or face shield.
Skin Protection
Wear chemical-resistant gloves and protective clothing.
Respiratory Protection
Use NIOSH-approved respirator if exposure limits are exceeded or irritation occurs.
Section 9
Physical & Chemical Properties
Appearance
White crystalline powder
Odor
Odorless
Odor Threshold
No data available
pH
11.2 - 11.6
Melting Point / Freezing Point
856 °C
Boiling Point
Decomposes on heating by CO2 loss
Flash Point
N/A
Evaporation Rate
No data available
Flammability (solid, gas)
No data available
Upper/Lower Flammability or Explosive Limits
No data available
Vapor Pressure
No data available
Vapor Density
No data available
Relative Density
No data available
Solubility
Freely soluble in water. Insoluble in ethanol
Partition Coefficient (n-octanol/water)
No data available
Auto-ignition Temperature
No data available
Decomposition Temperature
No data available
Viscosity
No data available
Particle Characteristics
No data available
Form
Solid
Density
2.54 g/cu cm
Values shown reflect product-specific canonical data. Lot-specific ranges may vary; see the Certificate of Analysis for the shipped lot.
Section 10
Stability and Reactivity
Reactivity
Not reactive under normal conditions of use and storage.
Chemical Stability
Stable under recommended storage conditions.
Possibility of Hazardous Reactions
None under normal processing conditions.
Conditions to Avoid
Dust formation; exposure to air or moisture over prolonged periods; excess heat.
Incompatible Materials
Acids (violent exothermic reaction releasing carbon dioxide); aluminum and powdered aluminum; zinc and other metals; strong oxidizing agents; fluorine; water and moisture.
Hazardous Decomposition Products
Sodium oxides and carbon oxides (carbon monoxide, carbon dioxide); carbon dioxide is released when it reacts with acids.
Section 11
Toxicological Information
See Section 2 for GHS hazard classification.
Likely Routes of Exposure
Inhalation, skin contact, eye contact, ingestion.
Symptoms
Eye contact causes irritation: redness, pain and tearing.
Delayed and Chronic Effects
No delayed or chronic effects identified beyond the classification in Section 2.
Numerical Measures of Toxicity
No data available
Carcinogen Classification
Carcinogen classification
Agency
Status
IARC
Not listed as carcinogen.
NTP
Not listed as carcinogen.
OSHA
Not listed as carcinogen.
Section 12
Ecological Information
Ecotoxicity
Data not available. Avoid release to the environment.
Persistence & Degradability
Not Available
Bioaccumulative Potential
Not Available
Mobility in Soil
Not Available
Section 13
Disposal Considerations
Dispose of contents/container in accordance with applicable federal, state, and local regulations. Do not dispose of into drains or waterways.
Section 14
Transport Information
Not regulated for transport under US DOT 49 CFR Subchapter C, IMDG, or IATA DGR.
Section 15
Regulatory Information
Regulatory inventory listings
Inventory / List
Status
California Proposition 65
Not listed
US EPA TSCA Active Inventory
Listed
EPCRA SARA 313 (TRI)
Not listed
SARA 311/312 hazard categories correspond to the GHS classification in Section 2. Data retrieved as of: California Proposition 65 2026-10-02; US EPA TSCA Active Inventory 2026-10-02; EPCRA SARA 313 (TRI) 2026-10-02.
Section 16
Other Information
Revision Date
Format
16-section format per OSHA HCS 2024 (29 CFR 1910.1200, Appendix D), aligned with GHS Rev. 7.
Disclaimer: The information provided in this Safety Data Sheet is correct to the best of our knowledge at the date of publication. It relates only to the specific product identified and does not relate to its use in combination with other materials. ALLIANCE CHEMICAL MAKES NO WARRANTY, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. ALLIANCE CHEMICAL DOES NOT ASSUME LIABILITY FOR LOSS, INJURY, DAMAGE, OR EXPENSE ARISING FROM THE HANDLING, STORAGE, USE, OR DISPOSAL OF THIS PRODUCT.
Alliance Chemical, 204 South Edmond Street, Taylor, TX 76574. Published by Alliance Chemical from first-party canonical product data. Our authority is hands-on chemical handling, DOT/GHS-compliant shipping, and government-registered distribution — not bench chemistry. This Safety Data Sheet is prepared from the regulatory data on file for this product.