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N,N-Dimethylaniline

Synonyms & Trade Names
N,N-Dimethylbenzeneamine; N,N-Dimethylphenylamine [Note: Also known as Dimethylaniline which is a correct synonym for Xylidine.]
CAS No.
121-69-7
RTECS No.
BX4725000
DOT ID & Guide
2253 153
Formula
C6H5N(CH3)2
Conversion
1 ppm = 4.96 mg/m3
IDLH
100 ppm
See: 121697
Exposure Limits
NIOSH REL
: TWA 5 ppm (25 mg/m3) ST 10 ppm (50 mg/m3) [skin]
OSHA PEL
†: TWA 5 ppm (25 mg/m3) [skin]
Measurement Methods

NIOSH 2002;
OSHA PV2064
See: NMAM or OSHA Methods
Physical Description
Pale yellow, oily liquid with an amine-like odor. [Note: A solid below 36°F.]
MW:
121.2
BP:
378°F
FRZ:
36°F
Sol:
2%
VP:
1 mmHg
IP:
7.14 eV
Sp.Gr:
0.96
Fl.P:
142°F
UEL:
?
LEL:
?
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
Strong oxidizers, strong acids, benzoyl peroxide
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
Anoxia symptoms: cyanosis, lassitude (weakness, exhaustion), dizziness, ataxia; methemoglobinemia
Target Organs
Blood, kidneys, liver, cardiovascular system
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 immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

NIOSH

Up to 50 ppm:
(APF = 10) Any supplied-air respirator

Up to 100 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

Emergency or planned entry into unknown concentrations or IDLH conditions:
(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   See ICSC CARD: 0877   See MEDICAL TESTS: 0085
 

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