September 2010
NIOSH Publication Number 2010-168c

Diphenylamine

Synonyms & Trade Names
Anilinobenzene, DPA, Phenylaniline, N-Phenylaniline, N-Phenylbenzenamine [Note: The carcinogen 4-Aminodiphenyl may be present as an impurity in the commercial product.]
CAS No.
122-39-4
RTECS No.
JJ7800000
DOT ID & Guide
Formula
(C6H5)2NH
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: TWA 10 mg/m3
OSHA PEL
†: none
Measurement Methods

OSHA 22 , 78
Physical Description
Colorless, tan, amber, or brown crystalline solid with a pleasant, floral odor. [fungicide]
MW:
169.2
BP:
576°F		 MLT: 127°F
Sol:
0.03%		 VP(227°F): 1 mmHg
IP:
7.40 eV
Sp.Gr:
1.16
Fl.P:
307°F
UEL:
?
LEL:
?
Combustible Solid; explosive if a cloud of dust is exposed to a source of ignition.
Incompatibilities & Reactivities
Oxidizers, hexachloromelamine, trichloromelamine
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, mucous membrane; eczema; tachycardia, hypertension; cough, sneezing; methemoglobinemia; increased blood pressure, heart rate; proteinuria, hematuria (blood in the urine), bladder injury; in animals: teratogenic effects
Target Organs
Eyes, skin, respiratory system, cardiovascular system, blood, bladder, reproductive system
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: Daily
Remove: When wet or contaminated
Change: Daily
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 0466