ORANGE II 

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:  Acid Orange 7, Acid Orange A, Tropaeolin 000 No.2, 4-(2-hydroxy-1-naphthylazo)benzenesulfonic acid  CAS No.: 633-96-5  E-C No.:211-199-0  Weight:  350.32g/mol 	Formula: C16H11N2NaO4S

2. HAZARDS ID: GHS:    Acute Aquatic Hazard ( Category 3)
Pictogram: none
Signal Word: None
Hazard Statement: H402: Harmful to aquatic life.
Precautionary Statement: P273: Avoid release into the environment. P501: Dispose of contents/container to an approved waste disposal plant. 

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 ON INGREDIENTS: 
Chemical 						 CAS No.	 	Percent		
Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate                633-96-5               90-100%                  

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

5. FIRE FIGHTING: Info: wear self-contained breathing apparatus in pressure-demand, MSHA/NIOSH & full PPE. Irritating & highly toxic gases may be generated by thermal decomp/combustion. Hazards: Carbon, Nitrogen, Sulphur, & Sodium oxides. Extinguishing: Use water spray, dry chemical, carbon dioxide, or alcohol-resistant foam. 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 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. OSHA Vacated PELs: Acid Orange 7: No OSHA Vacated PELS are listed for this chem.  

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 z88.22 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator’s use.  

9. PHYSICAL & CHEM: Appearance: Orange to red powder.

10.  STABILITY & REACTIVITY: Stability: Stable under normal temps & pressures. Avoid: dust generation, excess heat. Incompatibilities: Oxidizing agents.  Haz Decomp: see section 5

11. TOXICOLOGICAL INFO: RTECS#: DB7084000. LD50/LC50: N/A. Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.  Reproductive: Spermatogenisis Mutagenicity: Mammalian somatic cells  Other: respiratory irritation 

12. ECOLOGICAL INFO: Zebra Fish LC50: >56 -<100 mg/l – 96h, Water Flea EC50 -57.26mg/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:  No info. 

15. REGULATORY INFO: SARA311/312/313: None
Section 302 (TPQ/RQ) None of the chemicals in this product have a TPQ/RQ. 
STATE: CAS# 633-96-5 is not present on state lists from CA, MN, MA, FL. 
PA & NJ Right to Know:	Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate  CAS#633-96-5
California Prop.65: None of the chemicals are known to cause cancer, birth defects, or any other reproductive harm.

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.