Amines
REACH
N-nitrosodiphenylamine
CAS Number
86-30-6
EC Number
201-663-0
What is N-nitrosodiphenylamine?
N-Nitrosodiphenylamine (CAS 86-30-6) is an industrial chemical used primarily as a polymerization inhibitor and retarder in rubber and polymer processing.
Where is N-nitrosodiphenylamine used?
- Rubber compounding: prevulcanization inhibitor that delays cure onset during mixing and extrusion
- Tire and technical rubber production: reduces scorch risk
- Polymer manufacturing: stabilizes reactive monomer systems during storage and transport, preventing unwanted polymerization
- Plastics processing: stabilizer extending the safe handling window of peroxide-cured compounds
- Antioxidant additive in certain polymer formulations where degradation is a concern
- It controls cure rates and prevents premature vulcanization.
Commercial specifications
- Bulk quantities suited to compounding and manufacturing operations
- Packaging ranges from bags to bulk containers depending on facility volume requirements
Other Names (Synonyms)
N,n-diphenylnitrous amide
What are the physical properties of N-nitrosodiphenylamine?
Melting Point 66.5 °C
Boiling Point 101 °C
Density 1.23 g/cm³
Flash Point 11 °C
Appearance N-Nitrosodiphenylamine is a yellow to orangebrown crystalline solid.
Color Yellow to brown to orange power or flakes
Form Yellow to brown or orange powder or flakes
Water Solubility Insoluble
Vapor Pressure 0.1 at 25 °C (assigned by analogy, Mabey et al., 1982)
Refractive Index 1.6330 (estimate)
Log P 3.13 at 25℃
How is N-nitrosodiphenylamine classified and handled safely? Learn More
Warning
GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H302 Harmful if swallowed
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H320 Causes eye irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to N-nitrosodiphenylamine?
HS Code 2921.44.0500
UN Number 1230
ADR Class 3
Packing Group II
Storage Class 11 - Combustible Solids
WGK (Germany) 3