SODIUM PHOSPHATE MONOBASIC 
   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:  Syn: Disodium hydrogen phosphatemonohydrate CAS No.: 10049-21-5 Weight: 137.99
Formula: H2NaO4P* H2O EC-No.: 231-449-2

2. HAZARDS: GHS:  Not a hazardous substance. 

HMIS: Health hazard  0, Flammability   0,  Physical hazards   0     NFPA: Health hazard  0, 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: Harmful by inhalation. 

3. COMPOSITION / INGREDIENTS: 
Name				CAS No.	              Percent		Hazardous
Sodium phosphate Monobasic     	10049-21-5	 99%                              No

4. FIRST AID: Eyes: rinse w/ plenty of water as precaution. Skin: Rinse with plenty of soap & water. Ingestion: Do not induce vomiting w/o medical advice. Rinse with water. Inhalation: Move to fresh air.  Physician: Treat symptomatically & supportively. 

5. FIRE FIGHTING: Info: wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH and PPE. 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. 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 & 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: 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	               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: 4.1-4.5 at 50g/l at 25°C Melting Pt.: 100°C Water Solubility: soluble

10. STABILITY & REACTIVITY: Stability: Stable under normal temps/pressures. Avoid: Exposure to moisture; hygroscopic Incompatibilities: Strong Oxidizing agents, Strong Acids Decomp: see section 5

11. TOXICOLOGICAL INFO: RTECS#: unlisted. LD50/LC50: N/A Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.  Acute Toxicity: LD50 rat >2,000mg/kg, LC50 Inhalation Rat 4h >0.83 mg/l, LD50 Dermal  rabbit >7,940 mg/kg

12. ECOLOGICAL INFO: Water Flea – 1,089 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:  DOT IATA & IMDG: Not regulated

15. REGULATORY INFO: Section 302 (RQ) & (TPQ) None of the chemicals in this material/product have a RQ or TPQ. 
Section 313 312/311 None  
STATE is not present on state lists from CA, MN, MA, FL. 
PA Right to Know: Sodium dihydrogenorthophosphate, monohydrate  CAS#10049-21-5 
NJ Right to Know: Sodium dihydrogenorthophosphate, monohydrate    CAS#10049-21-5 
California Prop.65: 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# 10049-21-5 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.