1. OSHA Occupational Chemical Database
  2. N-NITROSODIPHENYLAMINE
Label abbreviations descriptions

N-NITROSODIPHENYLAMINE

Chemical Identification
Chemical Identification
CAS # 86-30-6
Formula

C₁₂H₁₀N₂O
Synonyms

NDPA; diphenyl nitrosamine; Redax; Vulcatard; NDFA
Physical Properties
Physical Properties
Physical description Yellow to brown or orange powder or flakes or a black solid.
Boiling point Molecular weight 198.24
Freezing point/melting point 151.7°F Vapor pressure
Flash point Vapor density
Specific gravity 1.23 Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) N109
Sampling group
Sampler/Sampling media Midget fritted glass bubbler (MFGB) containing 15 mL Isopropanol [Infrequently Requested Method - OSHA personnel Contact SLTC before sampling 801-233-4900]
Sampling time*

250 min
Sampling volume (TWA)*

250 L
Sampling flow rate (TWA)*

1 L/min
Sampling volume (STEL/Peak/C)*
 

 
Sampling flow rate (STEL/Peak/C)*
 

 
Analytical method instruments HPLC
Method reference OSHA 23 (fully validated)
Notes
 

The samples must be protected from light during and after sampling. Wrap Bubbler with black tape to protect from light. Samples must be either stored in a freezer and shipped frozen or analyzed within 6 days after collection.
Special requirements
 

 

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Wipe Method
Sampler/Sampling media
 

 
Bulk Method
Bulk Method
 

 
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA
 

 

 REL-TWA
 

 

 TLV-TWA
 

 

 PEL-TWA
 

 
PEL-STEL
 

 

 REL-STEL
 

 

 TLV-STEL
 

 

 PEL-STEL
 

 
PEL-C
 

 

 REL-C
 

 

 TLV-C
 

 

 PEL-C
 

 
Skin notation
 

NA

 Skin notation
 

NA

 Skin notation
 

NA

 Skin notation
 

NA
Notes:
 

Not established

 Notes:
 

Not established

 Notes:
 

Not established

 Notes:
 

Not established
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-3, EPA-B2 Notes:
 

 
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - N-Nitrosodiphenylamine

NIOSH: Pocket Guide to Chemical Hazards - N-Nitrosodiphenylamine

Literature References

 
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: JJ9800000.
  • U.S. EPA Integrated Risk Information System: N-Nitrosodiphenylamine (CASRN 86-30-6).
  • McGregor, D.: The genetic toxicology of N-nitrosodiphenylamine. Mutation Res. 317(3): 195-211, 1994.
  • Pohanish, R.P. (editor): N-Nitrosodiphenylamine. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1733-1735.

Last Updated Date : 01/05/2021