MAGNESIUM SULFATE HEPTAHYDRATE
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:  Epsom Salts CAS No.:  10034-99-8  Weight:  246.47g/mol  Formula:  MgO4S.7H2O	EC-No: 231-298-2

2.HAZARDS: GHS Class:  Not a hazardous substance. 2.3: Other Hazards: none

3. COMPOSITION, INFO:
Chemical  			CAS No.		Percent			Hazardous
 Magnesium Sulfate Heptahydrate	10034-99-8                 100%		       	No

4. FIRST AID: Eyes: rinse with water as precaution.  Skin: Rinse with soap & water. Ingestion: Never give anything to an unconscious person. Rinse with water. Inhalation: Move to fresh air.  Physician: Treat symptomatically & supportively.

5. FIRE FIGHTING: Info:  wear a self-contained breathing apparatus if necessary. Special Hazards: Sulfur & Magnesium oxides Extinguishing: Use water spray, carbon dioxide, dry chemical powder, or alcohol-resistant foam.

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8. 
Spills: Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. 

7. HANDLING & STORAGE: Handling: Wash after handling. 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; non-combustible substance.   

8. EXPOSURE: Facilities storing or utilizing this material should be equipped with an eyewash facility and safety shower. Use adequate ventilation.
Chemical Name			ACGIH		NIOSH		OSHA – Final/Vacated PEL’s
Magnesium Sulfate Heptahydrate	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 nitrile gloves Clothing: Wear appropriate protective clothing to prevent skin exposure.  Respirators: Follow the OSHA respirator regulations found in 29CFR 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 crystals pH: 5 – 8 at 50g/l Vapor Pressure: <0.133hPa (<0.100 mmHg) at 20°C (68°F) BULK Density:  0.009 kg/m3 Relative Density: 1.67 g/cm3 Solubility: 246.48 g/l at 20°C Melting Pt.: 1,124.0°C

10. STABILITY & REACTIVITY: Stability: Stable at room temp in closed containers under normal storage & handling conditions. Incompatibilities: Strong Oxidizing agents.

11. TOXIC INFO: RTECS:OM4508000  LD50/LC50:N/A Carcinogenicity: Not in ACGIH, IARC, NIOSH, NTP, or OSHA. 

12. ECOLOGICAL INFO: LC50: Fathead minnow 680mg/l-96h LC50: Water flea 720mg/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 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: Chronic health hazard
SARA Section 302 Extremely Haz None of the chemicals in this product have a TPQ/RQ.
Section 313 No chemicals are reportable under Section 313. 
STATE CAS# 10034-99-8 is not present on state lists from CA, MN, MA, FL. 
PA & NJ  Right to Know: Magnesium Sulfate heptahydrate CAS#10034-99-8          
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 
WGK (Water Danger/Protection) CAS#10034-99-8:  Not available.
Canada - DSL/NDSL CAS#10034-99-8 is not listed on Canada’s DSL List. 
Canada – WHMIS    WHMIS:  Not available. CAS# 10034-99-8 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