NITRAZINE YELLOW

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: C.I. 14890; 3-(2,4-Dinitrophenylazo)-4-Hydroxy-2,7-Napthalenedisulfonic Acid, Disodium Salt. 
CAS No.: 5423-07-4. Weight: 542.35. EC-No: 226-549-8   Formula: C16H8N4O11S2Na2

2. HAZARDS:  GHS Class:  Not a hazardous substance or mixture.

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		Hazardous
Nitrazine Yellow, Indicator Grade                            	 5423-07-4       	ca.100%                   No 

4. FIRST AID: Eyes: rinse with water Skin: Rinse with plenty of soap & water Ingestion: Do not induce vomiting without medical advice. Rinse with water. Inhalation: Move to fresh air.  Physician: Treat symptomatically and supportively. 
 
5. FIRE FIGHTING: Info: wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH & full PPE.  Irritating & highly toxic gases may be generated by thermal decomposition or combustion. Explosion hazard when exposed to heat, mechanical shock, or friction. Containers may explode in the heat of a fire. Dust from this material can form explosive organic dust cloud. Hazards: Carbon, nitrogen, Sulphur, & sodium oxides. Extinguishing: Use carbon dioxide or dry chem. 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 & 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. Material is heat, shock and/or friction sensitive. Use care in handling and storage. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing.  Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. 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. 
Chemical                       	 ACGIH                      NIOSH                       OSHA – Final/Vacated PELs  
Nitrazine Yellow, Indicator     	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 259 CFR 1910.133 or European Standard EN 166. Skin: Wear appropriate protective gloves to prevent skin exposure. 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: Brown powder. 

10. STABILITY & REACTIVITY: Stability: Stable at room temp in closed containers under normal storage & handling conditions. Heating may cause an explosion. Avoid: Incompatibles, dust generation, temps above 250° C, strong oxidants. Incompatibilities. Heat, strong oxidizing agents. Haz Decomp: see section 5

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

12. ECOLOGICAL INFO: No info. 

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 REGULATIONS: Not regulated. 

15. REGULATORY INFO: SARA 311/312: None
Section 302 (RQ) & Section 302 (TPQ) None of the chemicals in this material/products have a RQ or TPQ. 
Section 313 No chemicals are reportable under Section 313.
STATE CAS# 5423-07-4 is not present on state lists from CA, MN, NJ, MA, FL. 
Pennsylvania Right to Know:	Disodium 2-(2,4-dinitrophenylazo)-1-hydroxynaphthalene-3,6-disulphonate  CAS#5423-07-4
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 
Hazard Symbols: Not available. WGK (Water Danger/Protection) CAS# 5423-07-4: No information available. 
Canada - DSL/NDSL CAS# 5423-07-4 is listed on Canada’s NDSL List. Canada - WHMIS: Not available. 

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.