pH adjustment and neutralization; cleaning and descaling; battery electrolyte; process acid.
Restrictions on Use
For industrial and professional use. Never add water to concentrated acid; never mix with bleach (releases chlorine).
Section 2
Hazard Identification
Corrosive
Classification
Corrosive to metals, Category 1
Skin corrosion/irritation, Category 1
Serious eye damage/eye irritation, Category 1
Signal Word
Danger
Hazard Statements
H290May be corrosive to metals
H314Causes severe skin burns and eye damage
Precautionary Statements
P234Keep only in original packaging.
P260Do not breathe dust, fume, gas, mist, vapors or spray.
P264Wash hands and face thoroughly after handling.
P280Wear protective gloves, protective clothing, and eye/face protection.
P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
P304+P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P310Immediately call a POISON CENTER or doctor.
P321Specific treatment (see first-aid information on this label).
P363Wash contaminated clothing before reuse.
P390Absorb spillage to prevent material damage.
P405Store locked up.
P406Store in a corrosion resistant container with a resistant inner liner.
P501Dispose of contents and container in accordance with local, regional, national, and international regulations.
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
Sulfuric acid
7664-93-9
H2SO4
29-31% (w/w)
Water
7732-18-5
H2O
Balance (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
Causes burns to the skin, eyes and mucous membranes; eye contact may cause permanent damage including blindness; ingestion burns the mouth, throat and stomach.
Immediate Medical Attention and Special Treatment
Immediate medical attention is required after eye or skin contact or ingestion; tissue damage may continue after exposure ends.
Section 5
Fire-Fighting Measures
Suitable Extinguishing Media
Dry chemical, CO2, water spray. Use water spray to cool containers.
Unsuitable Extinguishing Media
Do not use a solid water stream as it may scatter and spread fire.
Specific Hazards Arising from the Chemical
Fire may release corrosive and toxic gases. Containers may rupture when heated.
Protective Equipment
Wear self-contained breathing apparatus and full protective clothing.
Hazardous Combustion Products
Sulfur oxides when heated strongly; flammable hydrogen gas from contact with metals.
Section 6
Accidental Release Measures
Personal Precautions
Use PPE as described in Section 8. Ensure adequate ventilation. Evacuate personnel to safe areas.
Hazard-Specific Precautions
Do not touch spilled material without protective equipment. Neutralize residue only with a method suitable for the material, then collect.
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. Use corrosion-resistant containers. Keep away from incompatible materials (see Section 10). Keep containers tightly closed.
Specific Storage Precautions
Keep closed in acid-resistant plastic containers in a cool, ventilated area away from bases, bleach and metals. To dilute, add acid slowly to water.
Section 8
Exposure Controls / Personal Protection
Occupational Exposure Limits
Occupational exposure limits
Limit
Value
OSHA PEL
1 mg/m³ TWA
ACGIH TLV
0.2 mg/m³ TWA (thoracic fraction); A2 for strong inorganic acid mists containing sulfuric acid
NIOSH REL
1 mg/m³ TWA
IDLH
15 mg/m³
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
Where mist, spray or dust is generated (e.g., spraying, atomization, pressure washing), use a NIOSH-approved half-face air-purifying respirator with combination acid gas / P100 cartridges. Ensure local exhaust ventilation.
Exposure limits sourced from NIOSH Pocket Guide, OSHA 29 CFR 1910.1000 and ACGIH TLVs.
Section 9
Physical & Chemical Properties
Appearance
Transparent, pale liquid
Odor
Odorless
Odor Threshold
No data available
pH
< 1
Melting Point / Freezing Point
About -35 °C (-31 °F), freezing point
Boiling Point
About 108 °C (226 °F)
Flash Point
Not applicable
Evaporation Rate
No data available
Flammability (solid, gas)
No data available
Upper/Lower Flammability or Explosive Limits
No data available
Vapor Pressure
About 13 mmHg at 20 °C (water vapor)
Vapor Density
No data available
Relative Density
1.213–1.223 at 20 °C (water = 1)
Solubility
Completely miscible with water (dilution releases heat)
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
Not applicable
Form
Liquid solution
Density
1.22 (30% w/w aqueous solution, 20 °C)
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
May be corrosive to metals.
Chemical Stability
Stable under recommended storage conditions.
Possibility of Hazardous Reactions
None under normal processing conditions.
Conditions to Avoid
Contact with metals and incompatible materials.
Incompatible Materials
Bases (violent, heat); bleach and other hypochlorites (release chlorine); cyanides and sulfides (release toxic gases); most metals (release flammable hydrogen); organic materials, chlorates, permanganates and nitrates.
Hazardous Decomposition Products
Sulfur oxides when heated strongly; flammable hydrogen gas from contact with metals.
Section 11
Toxicological Information
See below for route-specific acute toxicity data.
Likely Routes of Exposure
Inhalation, skin contact, eye contact, ingestion.
Symptoms
Causes burns to the skin, eyes and mucous membranes; eye contact may cause permanent damage including blindness; ingestion burns the mouth, throat and stomach.
Delayed and Chronic Effects
No delayed or chronic effects identified beyond the classification in Section 2.
Acute toxicity
Route
Value
LD50 Oral (rat)
2,140 mg/kg (sulfuric acid)
LC50 Inhalation (rat, 4h)
0.375 mg/L (sulfuric acid mist)
Carcinogen Classification
Carcinogen classification
Agency
Status
IARC
Group 1 — carcinogenic to humans (Sulfuric acid; IARC agent: Acid mists, strong inorganic, Vol. 54, 100F).
NTP
Known to be a human carcinogen (Sulfuric acid; NTP listing: Strong Inorganic Acid Mists Containing Sulfuric Acid).
OSHA
No substance-specific standard in 29 CFR 1910 Subpart Z; not classified as a carcinogen under the Hazard Communication Standard (29 CFR 1910.1200) as supplied. See Section 2 and the scope note.
Scope: the IARC and NTP listings apply to strong inorganic acid mists containing sulfuric acid, not to the liquid acid.
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.
EPA RCRA Waste Codes
D002 (corrosive, pH ≤ 2, 40 CFR 261.22). Not a P- or U-listed waste.
If discarded, this material may be a corrosive hazardous waste (EPA RCRA D002, 40 CFR 261.22): aqueous with pH ≤ 2 or ≥ 12.5, or a liquid that corrodes steel at more than 6.35 mm per year. The waste generator must make the final hazardous-waste determination.
Section 14
Transport Information
US DOT (49 CFR)
UN Number
UN2796
Proper Shipping Name
Sulfuric acid with not more than 51% acid
Hazard Class
8
Packing Group
II
Additional US DOT Requirements
A package containing 1,000 lb or more of sulfuric acid (about 316 gal at the top of the 29–31% specification, so treat 330-gal totes as reaching it; 275-gal totes do not) is a hazardous substance: add RQ to the shipping description. Not a marine pollutant.
IMDG / IATA classifications may differ from US DOT. Verify current regulations before international shipment.
Sulfuric acid (CAS 7664-93-9) 1,000 lb (454 kg): 3,230–3,450 lb, or about 316–341 US gal, of 29–31% acid. Also an EPCRA section 302 Extremely Hazardous Substance (TPQ 1,000 lb).
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.
Sulfuric Acid 30% Technical Grade — Safety Data Sheet | Alliance Chemical