1‑HEPTANESULFONIC ACID SODIUM SALT MONOHYDRATE
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: 1‑Heptanesulfonic acid sodium salt Monohydrate CAS No.: 207300-90-1, EC-No.: 245-210-5,   
Weight: 220.26 Formula: C7H15O3S.Na*H2O

2.HAZARDS: GHS Class:  Not a hazardous substances. 

HMIS Classification: Health hazard: 0, Flammability: 0, Physical hazards: 0
NFPA Rating: Health hazard: 0, Fire: 0, Reactivity Hazard: 0
2.3: Other Hazards: none

3. COMPOSITION, INFO:
Chemical  					CAS No.		                 Percent		
1-Heptanesulfonic Acid Sodium Salt Monohydrate	207300-90-1	 	90-100			

4. FIRST AID: Eyes: Flush eyes as a precaution. Skin: flush skin with soap & water. Ingestion: If victim is conscious and alert, give water rinse mouth.  Do NOT induce vomiting. NEVER give anything by mouth to an unconscious person. 
Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. 
Physician: Treat symptomatically & supportively.

5. FIRE FIGHTING: Info: wear full PPE and NIOSH approved self‑contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. As with most organic solids, fire is possible at elevated temperatures or by contact with an ignition source. Fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard. Extinguishing: Water spray, dry chemical, alcohol resistant foam, or carbon dioxide.   Hazards: Carbon, Sulphur, & Sodium oxides. Flash Pt: N/A Auto-ignition Temp: N/A Explosion Limits: N/A

6. ACCIDENTAL RELEASE: Info: Remove all sources of ignition.  Ventilate area of leak or spill.  Clean‑up personnel may require protection from inhalation of dust Spills/Leaks: Clean up spills in a manner that does not disperse dust into the air.  Use non‑sparking tools.  Pick up spill for recovery or disposal and place in a closed container.  

7. HANDLING & STORAGE: Handling: Provide appropriate exhaust ventilation at places where dust is formed.
Storage: Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage.

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. A local exhaust system which captures the contaminant at its source is recommended to prevent dispersion of the contaminant into the workroom air.
Chemical 					ACGIH		NIOSH	OSHA – Final/Vacated PEL’s
1-Heptanesulfonic Acid sodium salt monohydrate 	None listed	None listed	None listed 

PPE: Eyes: Use chemical safety goggles.  Contact lenses should not be worn when working with this material. Maintain eye wash fountain & quick‑drench facilities in work area. Skin: Wear protective gloves and clean body‑covering clothing. Clothing: Wear impervious clothing. Respirators: For conditions of use where exposure to the dust is apparent, a (NIOSH Approved) dust/mist respirator may be worn.  For emergencies, a self‑contained breathing apparatus may be necessary.

9. PHYSICAL & CHEM: Appearance:  White crystalline powder.  Melting Pt:  > 300.0° C (572.0°F).  

10. STABILITY & REACTIVITY: Stability: Stable under ordinary conditions of use & storage.
Incompatibilities:  Strong oxidizers. Haz Decomp:  see section 5

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

12. ECOLOGICAL INFO:  N/A

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 dangerous goods.

15. REGULATORY INFO: SARA 311/312 Hazards:  No SARA hazards.
SARA Section 302 Extremely Hazardous Substances None of the chemicals in this product have a RQ/ TPQ.
Section 313 No chemicals are reportable under Section 313. 
STATE CAS# 207300-90-1 is not present on state lists from CA, MA, MN, FL. 
PA & NJ Right to Know:  l-Heptanesulfonic acid, sodium salt monohydrate   CAS#207300-90-1
California 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 
WGK (Water Danger/Protection) CAS#207300-90-1:  No information available. 
Canada - DSL/NDSLCAS#207300-90-1 is not listed on Canada’s DSL List. 
Canada – WHMIS  This product has a WHMIS classification of D2B
CAS# 207300-90-1 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.