American Molecules - Ammol.org USA

Tungstic Acid SDS Safety Data Sheet of Supplier Exporter Manufacturers' Representative

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Tungstic Acid
CAS Number: 7783-03-1

Molecular Formula: H2WO4
Molecular Weight: 249.85

Tungstic Acid Suppliers
Tungstic Acid

Tungstic Acid or SDS, Safety Data Sheet
MSDS Sheet, Material Safety Data Sheet
 17-Feb-26

Section 1: Chemical Product and Company Identification

Product Name & Other Names: Tungstic Acid.
CAS Number
: 7783-03-1
EINECS EC Code: 231-975-2
Molecular Formula: H2WO4
Molecular Weight: 249.85
Relevant uses and uses advised against (if any) : Industrial Manufacturing.
Supplier: American Molecules, 9910 Bent Oak Dr, Houston, TX 77040, USA.
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665.
In case of emergency contact: Will be given with the supply.

Section 2: Hazards Identification

GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Hazard Class and Category Code(s), Regulation (EC) No 1272/2008 (CLP)

Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.

Labeling Regulation EC 1272/2008 (CLP) & GHS

GHS Label Elements
NONE

Signal Word: None

Precautionary statements:
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P262: Do not get in eyes, on skin, or on clothing.
P281: Use personal protective equipment as required.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+313: If eye irritation persists get medical advice/attention.

Section 3: Composition and Information on Ingredients

Product Name & Other Names: Tungstic Acid.
CAS Number
: 7783-03-1
EINECS EC Code: 231-975-2

Section 4: First Aid Measures

Always seek medical advice after the first aid treatment.

Skin: Rinse with water. Soap may be used. Seek Medical Aid.
Eyes: Wash eyes with plenty of water for at least 15 minutes, lifting lids occasionally. Seek Medical Aid.
Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Ingestion: If swallowed, induce vomiting immediately after giving two glasses of water. Never give anything by mouth to an unconscious person.

Section 5: Fire and Explosion Data

Flammability of the Product: No -Flammable.
Result of Combustion: Release of irritating gases and vapors.
Fire Fighting Media and Instructions: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary. Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. At high temperatures under fire conditions, it may produce toxic or irritating fumes.

Section 6: Accidental Release Measures

Personal precautions, protective equipment, and emergency procedures: Avoid breathing dust/fumes/gas/mist/vapors/spray. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.).
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment Cleanup procedures and Storage: Do not inhale dust, vapors, mist, or gas. Avoid dust formation. Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite). Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface and allow to evacuate as per law.

Section 7: Handling and Storage

Precautions for safe handling: Apply according to good manufacturing and industrial hygiene practices. Ensure proper ventilation. In case of insufficient ventilation, wear suitable respiratory equipment. Wash thoroughly after handling. Do not drink, eat, or smoke while handling. Avoid contact with skin, eyes, and clothing. Minimize dust generation. Avoid breathing dust/fumes/gas/mist/vapors/spray. Keep container tightly closed. Avoid ingestion and inhalation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.).
Conditions for safe storage, including any incompatibilities: Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in tightly closed original container. Keep air contact to a minimum. Store protected from heat, sparks and ignition sources and incompatible materials. Avoid inhalation of dust/mist/vapor. Do not store with incompatible materials like strong oxidizing agents.

Section 8: Exposure Controls/Personal Protection

Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits. If user operations generate dust, fume, or mist, use ventilation to keep exposure to airborne contaminants below the exposure limit.
Exposure Limits: This product does not contain any hazardous materials with occupational exposure limits established by the region-specific regulatory bodies.
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures as low as possible. Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of it into the general work area.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator may be worn. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles and/or full face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.
Other Control Measures: Maintain good housekeeping in work area. Dust deposits on floors and other surfaces may pick up moisture and cause the surfaces to become slippery and present safety hazards. Handle in accordance with good industrial hygiene and safety practice.

Section 9: Physical and Chemical Properties

Physical state and appearance: Solid yellow powder or granules.
Odor: No data found.
Odor threshold: No data found.
pH (5% soln/water): about 4.
Relative density: around 5.5
Melting point/freezing point: No data found.
Initial boiling point and boiling range: No data found.
Flash point: No data found.
Auto-ignition temperature: No data found.
Decomposition temperature: No data found.
Upper/lower flammability or explosive limits: No data found.
Vapor pressure: No data found.
Vapor density: No data found.
Evaporation rate: No data found.
Flammability (solid, gas): No data found.
Partition coefficient: n-octanol/water: No data found.
Solubility: Insoluble in water.
Viscosity: No data found.
Molecular Formula: H2WO4
Molecular Weight: 249.85

Section 10: Stability and Reactivity Data

Stability: It is stable in room temperature in closed containers under normal storage & handling.
Conditions of instability: Incompatible materials, Heat, Oxidizing agents.
Incompatibility with various substances: Avoid high temperatures, sparks, open flames, and moisture. Avoid contact with strong oxidizing agents.
Polymerization: Will not occur.

Section 11: Toxicological Information

Toxicity to Animals: No data found.
Carcinogenicity: No component of this product present at levels greater than or equal to 0.1% is identified as possible or confirmed human carcinogen by IARC, ACGIH, OSHA and NTP.
Teratogenic Effects: No data found.
Mutagenic Effects: No data found.
Developmental Toxicity: No data found.
Reproductive Effects: No data found.

Section 12: Ecological Information

Toxicity to fish: No data found.
Persistence and Degradability: No data found.
Mobility: No data found.
Bioaccumulation/ Accumulation: No data found.
Results of PBT and vPvB assessment: No data found.

Section 13: Disposal Considerations

Waste Disposal: Waste must be disposed of in accordance with federal, state, and local environmental control regulations.

Section 14: Transport Information

DOT USA, TDG Canada & ADR/RID Europe: Not controlled.
IMDG/IMO: Not controlled.
IATA: Not controlled.

Section 15: Other Regulatory Information

USA Regulations:
California Prop 65: Not listed.

Section 16 - Additional Information

Disclaimer:
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Our company provides this MSDS sheet in good faith but makes no representation as to its comprehensiveness or accuracy. This SDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. The above information has been compiled from various sources and has the possibility of discrepancy and being out-dated information. Individuals receiving the information must exercise their independent judgment and do further search in determining its appropriateness for a particular purpose. In no case shall our company be liable to loss or damages by the product user.
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Please visit Main Page of Tungstic Acid Suppliers.

American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.

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Suppliers and Manufacturers' Representative:
American Molecules - Ammol.org USA
9910 Bent Oak Dr
Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
Email: info@ammol.org

17 February, 2026