AMMONIUM MOLYBDATE TETRAHYDRATE ACS 

Safety Data Sheet
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  Effective Date: January 1, 2025
1. PRODUCT ID: Syn:   Molybdic acid, hexammonium salt; Ammonium Heptamolybdate Tetrahydrate; Ammonium Molybdate (II);  Ammonium paramolybdate. CAS No.:  12054-85-2  EC-No:  234-320-9  Weight:  1235.86  Formula:  (NH4)6M07O24*4H2O

2.HAZARDS ID: GHS: Acute Aquatic hazard (Cat. 3)

Pictogram: 	None
HAZARD STATEMENT(S): H402: Harmful to aquatic life.	
PRECAUTIONARY STATEMENT(S): P273: Avoid release to the environment.	
P501: Dispose of contents/container to an approved waste disposal plant.

Potential Effects: Eyes:  irritation to eyes.    Skin: Causes skin irritation.  May be harmful if absorbed through skin. 
Ingestion: May be harmful if swallowed. Inhalation:  Causes respiratory tract irritation.  May be harmful if inhaled.
2.3: Other Hazards: none

3. COMPOSITION:
Chemical  		  	CAS No.		Percent		Hazardous
Ammonium Molybdate                           12054-85-2 	  >98 %                       No

4. FIRST AID: Eyes: Rinse with plenty of water for 15 min. consult physician. Skin: Rinse with plenty of soap & water Ingestion: Do not induce vomiting without medical advice.  Rinse with water.  Inhalation: Remove to fresh air.  If not breathing, give artificial respiration. Physician: Treat symptomatically and supportively.

5. FIRE FIGHTING: Info:  Wear self-contained breathing apparatus if necessary. Extinguishing: Use water spray, alcohol-resistant foam, dry chem or carbon dioxide. Hazards:  Nitrogen oxides, Molybdenum oxides.

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8.
Spills/Leaks:  Vacuum or sweep up material and place into a suitable disposal container.  Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.  Provide ventilation.

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

8. EXPOSURE: Facilities storing or utilizing this material should be equipped with an eyewash facility and safety shower. Use adequate ventilation to keep airborne concentrations low.
Contains no substances with occupational exposure limit values.
Chemical 				ACGIH		NIOSH		OSHA	Final & Vacated PEL’s
Ammonium molybdate tetrahydrate 		0.5 mg/m3 TWA	None listed	5 mg/m3 TWA

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 EN 166. Skin:  Wear appropriate protective clothing to prevent skin exposure. 0.11mm thick nitrile Clothing: Wear appropriate clothing (Lab coats, aprons) 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: Appearance: White/colorless to slightly greenish/ yellow crystalline powder
Bulk Density: 1400 kg/m3 Decomp Temp:  190°C.  Solubility: 4.3 g/l at 20°C Density:  2.498g/cm3 at 25°C 

10. STABILITY & REACTIVITY: Stability: Stable under normal storage and handling conditions. 
Avoid:  Incompatibles, dust generation, excess heat. Incompatibilities:  Strong acids, strong oxidizing agents.  Hazardous Decomp Products:  Nitrogen oxides, molybdenum oxides

11. TOXICOLOGICAL INFO: RTECS:  QA5076000  LD50/LC50: LD50 rat oral >2,000mg/kg inhalation 4h 5mg/l
LD50 Dermal rabbit >2,000mg/kg no skin irritation mild eye irritation
Carcinogenicity: CAS#12054-85-2: Not listed by ACGIH, IARC, NIOSH, NTP, OR OSHA

12. ECOLOGICAL INFO: Harmful to aquatic life
Environmental Toxicity:  LCO-Oncorhynchus myskiss (rainbow trout) – 320 mg/l – 96H
    Toxicity to fish               LC50 – Oncorhynchus mykiss (rainbow trout) – 420 mg/l – 96h
    Toxicity to daphnia &    EC50 – Daphnia magna (Water flea) – 140 mg/l – 48h
    Toxicity to algae     EC50 – Desmodesmus subspicatus (green algae) – 41 mg/1 – 72 h

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:  None
TSCA CAS#12054-85-2 is not listed on the TSCA inventory because it is hydrated. 
SARA Section 302 Extremely Hazardous Substances None of the chemicals in this product have a TPQ.
Section 313 No chemicals are reportable under Section 313. 
STATE CAS#12054-85-2: is not present on state lists from CA, MA, MN, FL.
Pa Right to Know:  Ammonium molybdenum oxide tetrahydrate. CAS# 12054-85-2 Rev. Date: 2/16/1993
NJ Right to Know:  Ammonium molybdenum oxide tetrahydrate.   CAS# 12054-85-2 Rev. Date: 2/16/1993
Ca Prop 65: No Significant Risk Level: None of the chemicals in this product are listed. 

EUROPEAN/INTERNATIONAL REGULATIONS European Labeling in Accordance with EC Directives 
Hazardous Symbols:  Xi	WGK (Water Danger/Protection) CAS#12054-85-2: 1. 
Canada - DSL/NDSLCAS#12054-85-2 is listed on Canada’s DSL List. CAS#12054-85-2 is listed on Canada’s NDSL List as Ammonium molybdenum oxide tetrahydrate.
Canada – WHMIS:  Not available. CAS#12054-85-2 is not listed on Canada’s 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.