BROMOTHYMOL BLUE FREE ACID ACS

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: Bromothymol Blue, 3'3"-Dibromothymolsulfonephthalein, BTB. CAS No.: 76-59-5   EC-No.:  200-971-2   Weight: 624.39   	Formula: C27H28Br2O5S.

2.HAZARDS ID: GHS:  Not a hazardous substance.
HMIS CLASS:   Health Hazard:  0	Flammability:    0	      Physical Hazards: 0                      
                           NFPA RATING:  Health Hazard:  0    Fire:  0    Reactivity Hazard: 0

Potential Effects: Eyes: No information regarding eye irritation and other potential effects was found. Skin: The toxicological properties of this material have not been fully investigated. Ingestion: The toxicological properties of this substance have not been fully investigated.   Inhalation: The toxicological properties of this material have not been fully investigated. Chronic: Not available.
2.3: Other Hazards: none

3. COMPOSITION, INFO:
Chemical Name 				CAS No.	                 Percent			
Bromothymol Blue Free Acid,			76-59-5		  97%			       

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

5. FIRE FIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH & full PPE. Irritating and highly toxic gases may be generated by thermal decomp or combustion. Extinguishing: Use water spray, dry chemical, alcohol-resistant foam or carbon dioxide, Hazards: Carbon, Sulphur oxides, Hydrogen bromide gas. 
Flash Pt: N/A Auto-ignition Temp: N/A. Explosion Limits: N/A

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8. Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. 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 closed container in a cool, dry, well-ventilated area away from incompatible substances.  
 
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 Name			ACGIH		NIOSH		OSHA – Final/Vacated  PEL’s
Bromothymol Blue Free Acid		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 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: Slight pink powder  Melting Point: 200 - 202 ° C  (392 -396 °F)  

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

11. TOXICOLOGICAL INFO: RTECS: SJ7450000           LD50/LC50: Not available.
Carcinogenicity: CAS#76-59-5: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. 

12. ECOLOGICAL INFO: Environmental Fate and Toxicity: No information available.

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# 76-59-5 is not present on state lists from CA, MA, MN, FL. 
PA Right to Know:  Bromothymol Blue  CAS# 76-59-5	NJ Right to Know:  Bromothymol Blue.   CAS# 76-59-5
California No Significant Risk Level: None of the chemicals in this product are listed. 

EUROPEAN/INTERNATIONAL REGULATIONS  European Labeling in Accordance with EC Directives 
Hazardous Symbols:  Not available. 	WGK (Water Danger/Protection) CAS# 76-59-5: No information available.
Canada - DSL/NDSL CAS# 76-59-5 is listed on Canada’s DSL List. 
Canada – WHMIS: Not available.  CAS# 76-59-5 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.