SULFANILIC ACID

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 ID:  Syn:  4-Aminobenzenesulfonic acid, Aniline-4-Sulfonic acid    CAS No.: 121-57-3 E-C No.:204-482-5	
                               Weight:  173.19g/mol 	Formula: C6H7NO3S

2. HAZARDS: GHS:  Acute aquatic toxicity (Cat 3) Skin sensitization (Cat 1) Skin irritation (Cat 2) Eye irritation (Cat 2A)	
 Pictogram: 					
Signal Word:         WARNING
HAZARD STATEMENT(S):H319: Causes serious eye irritation. H315: Causes skin irritation H317: May cause an allergic skin reaction	H402: Harmful to aquatic life.
PRECAUTIONARY STATEMENT(S): P261: Avoid breathing dust/spray/ fume/gas/ mist/ vapors. P264: wash skin thoroughly after handling. P272: Contaminated work clothing should not be allowed out of workplace. P273: Avoid release into environment. P405: Store locked up. P280: Wear protective gloves/eye & face protection. P302 + P352: If on skin gently wash with plenty of soap & water. P305 + P351 + P338: If in Eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present & easy to do so. Continue rinsing. P362: Take off contaminated clothing and wash before reuse. P332 + P313: If skin irritation occurs: consult physician.  P337 + P313: If eye irritation occurs: consult physician. P501: Dispose of contents/container to an approved waste disposal plant.

HMIS Classification: Health hazard  2, Flammability   0,  Physical hazards   0			
NFPA Rating: Health hazard  2, 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. 
2.3: Other Hazards: none

3. COMPOSITION / INFO ON INGREDIENTS: 
Chemical			 CAS No.	 	Percent		
Sulfanilic acid	              	 121-57-3                  90-100%                  

4. FIRST AID:  Eyes: Rinse for 15 min with plenty of water and seek medical advice. Skin: Rinse with plenty of soap & water and seek medical advice. Ingestion: Do not induce vomiting without medical advice. Rinse with water. Consult physician. Inhalation: Move to fresh air.  Consult a physician. Physician: Treat symptomatically and supportively. 

5. FIRE FIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH, & full PPE. Extinguishing: Use water spray, dry chem, carbon dioxide, or alcohol-resistant foam. Hazards: Carbon, nitrogen & sulfur oxides. Flash Pt: N/A  Auto-ignition Temp:  331˚C (628˚F) Explosion Limits: N/A  

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

7. HANDLING & STORAGE: Handling:  Wash thoroughly after handling.  Use with adequate ventilation.  Avoid contact with eyes, skin, and clothing.  Avoid ingestion and inhalation.  Minimize dust generation and accumulation.
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 safety shower. Use adequate ventilation to keep airborne concentrations low.
Chemical				ACGIH		NIOSH		OSHA Final /Vacated PEL’s
Sulfanilic Acid Anhydrous		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 EN 166. Skin:  Wear appropriate protective gloves to prevent skin exposure. 0.11mm thick nitrile. Clothing:  Wear appropriate protective clothing (Lab coat) to prevent skin exposure. Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard En 149.  Always use a NOISH or European Standard EN 149 approved respirator when necessary.

9. PHYSICAL & CHEM: Appearance: White to Off-white to grey crystalline powder Melting Pt: >300°C (>572˚F) Boiling Pt:  ca.300˚C(572˚F)-OECD test decomposes below boil pt. Decomp Temp: ca.300˚C(572˚F) Solubility:  12.51g/l at 20˚C(68˚F)-soluble.  Relative Density:  1.4862 g/cm3 at 20˚C(68˚F) Surface tension: 72.3 mN/m at 20˚C(68˚F). Dissociation constant: 3.35 at 20˚C(68˚F)

10. STABILITY & REACTIVITY:  Incompatibilities: Strong oxidizing agents, reducing agents, strong acids, & bases. 
Stability:  Stable at room temp in closed containers under normal storage & handling. Haz Decomp.: see section 5

11. TOXICOLOGICAL INFO: RTECS: WP3895500  LD50: Oral, rat:  LD50 = 12300 MG/KG, Dermal rat, >2,000mg/kg, intravenous rat, 6,000 mg/kg. Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP or OSHA.  Studies:  irritating to the eyes.

12. ECOLOGICAL INFO: Environmental Fate:  Harmful to aquatic life.  Toxicity: LC50 static test - zebra fish >100mg/l-96h, 
EC50 water flea 23mg/l-48h, green algae 97mg/l-72h Biodegradability aerobic exposure time 72h -100% biodegradable.

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: Acute Health Hazard.
CERCLA Hazardous Substances and corresponding RQs None of the chemicals in this material have an RQ. 
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#121-57-3 is not present on state lists from CA, MN, MA, FL. 
PA Right to Know:	Sulfanilic AcidCAS#121-57-3 		NJ Right to Know:	Sulfanilic AcidCAS#121-57-3
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 
Hazardous Symbols:             XI	WGK (Water Danger/Protection) CAS#121-57-3:  1
Canada - DSL/NDSL is listed on Canada’s DSL List. Canada – WHMIS:  Not available.
CAS# 121-57-3 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.