SODIUM TUNGSTATE

Safety Data Sheet
Emergency Telephone Number: CHEMTREC 1-800-424-9300       For Information call: DUDLEY 732-886-3100       
      DUDLEY CORPORATION
           	        125 Kenyon Drive
       				         	        Lakewood, New Jersey 08701
Effective Date: January 1, 2025
1. PRODUCT ID: Syn:  Tungstic acid sodium salt dihydrate  CAS No.: 10213-10-2   E-C No.:236-743-4	
Weight:  329.85g/mol 	Formula: Na2O4W.2H2O

2. HAZARDS ID: GHS:  Acute toxicity, Oral (Category 4)	Acute Aquatic Hazard (Cat. 3)	
 Pictogram: 				            
Signal Word:         WARNING
HAZARD STATEMENT(S): H302: Harmful if swallowed. H402: Harmful to aquatic life.
PRECAUTIONARY STATEMENT(S): P264: Wash skin thoroughly after handling.	P330: Rinse mouth.
P270: Do not drink, eat, smoke, when using this product. P301 + P312: If swallowed: Call Poison Center or doctor/physician if you feel unwell.   P501: Dispose of contents/container to an approved waste disposal plant.  P273: Avoid release to the environment. 

HMIS: Health hazard  1, Flammability   0,  Physical hazards   0			
NFPA Rating: Health hazard  1, Fire     0, Reactivity hazard   0

Potential Effects: Eye: Risk of serious damage to eyes.	Skin: Harmful in contact with skin. 
Ingestion: Harmful if swallowed. 	   	                  Inhalation: May be harmful by inhalation. 
2.3: Other Hazards: none

3. COMPOSITION / INFO: 
Chemical					 CAS No.	 	Percent		
Disodium wolframate dihydrate	                  10213-10-2               >98%                  

4. FIRST AID:   Inhalation: Move to fresh air.  Eyes: Rinse immediately with plenty of water.  Skin: Rinse with plenty of soap & water Ingestion: Do not induce vomiting without medical advice. Rinse with water. Notes to Physician: Treat symptomatically and supportively. 

5. FIREFIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH and full PPE. 
Combustion generates toxic fumes. Hazards: Sodium oxides, Tungsten oxide.  
Extinguishing: use water spray, dry chemical, carbon dioxide, or alcohol-resistant foam. 

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8.
Spills/Leaks: Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions.

7. HANDLING & STORAGE: Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Keep container tightly closed. Avoid ingestion and inhalation. Storage: Store in a cool, dry, well-ventilated area away from incompatible substances.

8. EXPOSURE: Use adequate ventilation to keep airborne concentrations low. 

Chemical			ACGIH			NIOSH		 OSHA 		CA
Sodium Tungstate	2HY	1.0 mg/m3 TWA		1.0 mg/m3 TWA	 None 		1.0 mg/m3 PEL
			3.0 mg/m3 STEL		3.0 mg/m3 ST			3.0 mg/m3 STEL

PPE: Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA’s eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. 0.11mm thick nitrile.  Clothing: Wear appropriate protective clothing to prevent skin exposure. Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

9. PHYSICAL & CHEM: Fine white crystalline granules/powder pH: 9-11.5 at 100 g/l at 20˚C(68˚F) Solubility: 41 g/100 g water @ O Deg .C (32 Deg. F). Melting Pt: 698˚C (1288 Deg. F) Relative Density: 4.18 g/cm3

10 STABILITY & REACTIVITY: Stability: Stable under normal temperatures and pressures.  Avoid: High temperatures, incompatible materials. Incompatibilities: Strong oxidizing agents.  Haz Decomp: see section 5

11. TOXICOLOGICAL INFO:    RTECS#: YO7900000    LD50/LC50: Oral, rat-1,453mg/kg, Inhalation, rat-4h->5,010mg/m3, dermal, rat->2,000mg/kg, Intraperitoneal,rat-204mg/kg (Somnolence), Subcutaneous, rat-251mg/kg, intraperitoneal, mouse-145mg/kg (Somnolence) Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP or OSHA.

12 ECOLOGICAL INFO: Zebra fish >200mg/l – 96h, Water Flea >163 mg/l – 48h, Green Algae 17.7 mg/l – 72h

13. DISPOSAL CONSIDERATIONS: Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.  RCRA P-Series: None listed. RCRA U-Series: None listed.

14. TRANSPORT INFO: Not regulated.

15. REGULATORY INFO: SARA 311/312: Acute Health Hazard
Section 302 (RQ) and 302 (TPQ): None of the chemicals in this material have an RQ or a TPQ.
Section 313: No chemicals are reportable under Section 313.
State: CAS# 10213.10-2 is not present on state lists from CA, MN, MA, FL. 
PA & NJ Right to Know:  Disodium wolframate dihydrate CAS#10213-10-2
California Prop.65 components: None of the chemicals are known to cause cancer, birth defects, or any other reproductive harm.

EUROPEAN / INTERNATIONAL REGULATIONS European Labeling in Accordance with EC Directives
Hazard Symbols: XN	WGK (Water Danger/Protection) CAS# 10213-10-2: No information found.
Canada - DSL/NDSL None of the chemicals in this product are listed on the DSL or NDSL list.
Canada WHMIS: This product has a WHMIS classification of D2B.
Canadian Ingredient Disclosure List: (listed as Tungsten) is listed on the Canadian Ingredient Disclosure List.

16. DISCLAIMER INFO: DUDLEY CORPORATION provides the information herein in good faith but makes no representation as to its comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this.  Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose. DUDLEY CORPORATION makes no representations or warranties, either expressed or implied, including without limitation and warranties of merchantability, fitness for a particular purpose with respect to the information set forth herein or to the product to which the information refers. Accordingly, DUDLEY CORPORATION will not be responsible for damages resulting from the use of or reliance upon this information.