SODIUM PHOSPHATE DIBASIC 
   Safety Data Sheet  
Emergency Telephone Number: CHEMTREC 1-800-424-9300	For Information call: DUDLEY 732-886-3100        
DUDLEY CORPORATION
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Effective Date: January 1, 2025
1. PRODUCT ID:  Syn: Disodium hydrogen phosphate heptahydrate   CAS No.: 7782-85-6    Weight: 268.07
Formula: HNa2O4P* 7H2O EC-No.: 237-707-0

2. HAZARDS ID: GHS Class:  Not a hazardous Substance or mixture. 	

2.3: Other Hazards: none

3. COMPOSITION / INFO: 
Chemical Name			CAS No.	              Percent		Hazardous
Sodium phosphate dibasic     	          	7782-85-6	 99%                              No

4. FIRST AID: Eyes: Rinse with plenty of water for at least 15 minutes. Consult doctor. Skin: Rinse with plenty of soap & water. Ingestion: Do not induce vomiting without medical advice. Rinse with water. Inhalation: Move to fresh air. If not breathing give artificial respiration. Get doctor.  Physician: Treat symptomatically and supportively. 

5. FIRE FIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water mist may be used to cool closed containers. Extinguishing: Use dry chemical, CO2, water spray or alcohol resistant foam.  Hazards:  sodium oxides & oxides of phosphorous.       

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8. Spills/Leaks: Clean up spills immediately, observing precautions in the PPE Section. Sweep up, then place into a suitable container for disposal. 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. Keep container tightly closed. Avoid ingestion and inhalation. Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatibles. 

8. EXPOSURE: Controls: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. 

Chemical Name                    ACGIH                          NIOSH                OSHA-Final/Vacated PELs 
Sodium phosphate               None listed                  None listed            None listed 

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: A respiratory protection program that meets OSHA’s 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator’s use. 

9. PROPERTIES: White crystalline powder pH: 9.0-9.3 at 50g/l at 25°C 

10. STABILITY & REACTIVITY: Stability: Stable under normal temperatures and pressures. 
Avoid: Exposure to moisture Incompatibilities: Acids Decomp: see section 5

11. TOXICOLOGICAL INFO: RTECS#: unlisted. LD50/LC50: Not available. 
Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. 	Rabbit: eye & skin irritation

12. ECOLOGICAL INFO: Toxicity of Fish: LC50-Mosquito Fish – 467 mg/l-48h..

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 completer and accurate classification. RCRA P-Series: None listed. RCRA U-Series: None listed. 

14. TRANSPORT REGULATIONS:  DOT: UN3077, Environmentally hazardous substances, solid, n.o.s. (Sodium monohydrogen phosphate, heptahydrate), III              RQ: 5000 lbs
IATA & IMDG: Not regulated

15. REGULATORY INFO: Section 302 (RQ) & (TPQ) None of the chemicals in this material/product have a RQ or TPQ. 
SARA 311/312: Acute Health Hazard
Section 313 No chemicals are reportable under Section 313. 
STATE CAS# 7782-85-6 is not present on state lists from CA, MN, MA, FL. 
Massachusetts Right to Know: Sodium monohydrogen phosphate, heptahydrate  CAS#7782-85-6   Rev. Date: 3/1/2007
PA Right to Know: Sodium monohydrogen phosphate, heptahydrate  CAS#7782-85-6   Rev. Date: 3/1/2007
NJ Right to Know: Sodium monohydrogen phosphate, heptahydrate    CAS#7782-85-6 Rev. Date: 3/1/2007
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: Not available. WGK (Water Danger/Protection) CAS# 7782-85-6: 1 
Canada - DSL/NDSL CAS# 7782-85-6 is listed on Canada’s DSL List. 
Canada - WHMIS This product has a WHMIS classification of Not controlled.

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.