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Aniline (and homologs)

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Synonyms & Trade Names
Aminobenzene, Aniline oil, Benzenamine, Phenylamine
CAS No.
62-53-3
RTECS No.
BW6650000
DOT ID & Guide
1547 153
Formula
C₆H₅NH₂
Conversion
1 ppm = 3.81 mg/m3
IDLH
Ca [100 ppm]
See: 62533
Exposure Limits
NIOSH REL
Ca See Appendix A
OSHA PEL
TWA 5 ppm (19 mg/m3) [skin] See Appendix G
Measurement Methods
NIOSH 2002 , 2017 , 8317;
OSHA PV2079
See: NMAM or OSHA Methods
Physical Description
Colorless to brown, oily liquid with an aromatic amine-like odor. [Note: A solid below 21°F.]
Molecular Weight
93.1
Boiling Point
363°F
Freezing Point
21°F
Solubility
4%
Vapor Pressure
0.6 mmHg
Ionization Potential
7.70 eV
Specific Gravity
1.02
Flash Point
158°F
Upper Explosive Limit
11%
Lower Explosive Limit
1.3%
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
Strong oxidizers, strong acids, toluene diisocyanate, alkalis
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
headache, lassitude (weakness, exhaustion), dizziness; cyanosis; ataxia; dyspnea (breathing difficulty) on effort; tachycardia; irritation eyes; methemoglobinemia; cirrhosis; [potential occupational carcinogen]
Target Organs
Blood, cardiovascular system, eyes, liver, kidneys, respiratory system
Cancer Site
[bladder cancer]
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:No recommendation
Provide:Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH

At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0011   MEDICAL TESTS: 0014
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health