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N-Nitrosodimethylamine

Synonyms & Trade Names
Dimethylnitrosamine; N,N-Dimethylnitrosamine; DMNA; N-Methyl-N-nitroso-methanamine; NDMA; N-Nitroso-N,N-dimethylamine
CAS No.
62-75-9
RTECS No.
IQ0525000
DOT ID & Guide
Formula
(CH3)2N2O
Conversion
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
: Ca See Appendix A
OSHA PEL
: [1910.1016] See Appendix B
Measurement Methods

NIOSH 2522;
OSHA 38
See: NMAM or OSHA Methods
Physical Description
Yellow, oily liquid with a faint, characteristic odor.
MW:
74.1
BP:
306°F
FRZ:
?
Sol:
Soluble
VP:
3 mmHg
IP:
8.69 eV
Sp.Gr:
1.005
Fl.P:
?
UEL:
?
LEL:
?
Combustible Liquid
Incompatibilities & Reactivities
Strong oxidizers [Note: Should be stored in dark bottles.]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
nausea, vomiting, diarrhea, abdominal cramps; headache; fever; enlarged liver, jaundice; decreased liver, kidney, pulmonary function; [potential occupational carcinogen]
Target Organs
Liver, kidneys,lungs
Cancer Site
[in animals; lung, kidney, liver & nasal cavity tumors]
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

(See Appendix E)

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 with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 0525   See MEDICAL TESTS: 0167
 

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