Dimethylnitrosamine
N-Methyl-N-nitrosomethylamine
DMN
C2H6N2O / (CH3)2NN=O
Molecular mass: 74.1
ICSC # 0525
CAS # 62-75-9
RTECS # IQ0525000
UN # 2810
EC # 612-077-00-3
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Powder, carbon dioxide.
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Explosion
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Exposure
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AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Sore throat.
Cough.
Nausea.
Diarrhoea.
Vomiting.
Headache.
Weakness.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Redness.
Pain.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Pain.
Redness.
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Face shield,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal cramps.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Give a slurry of activated charcoal in water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Evacuate danger area!
Collect leaking and spilled liquid in sealable containers as far as possible.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Chemical protection suit including self-contained breathing apparatus.
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Separated from
strong oxidants,
food and feedstuffs
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Cool.
Keep in the dark.
Well closed.
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Do not transport with food and feedstuffs.
Unbreakable packaging; put breakable packaging into closed unbreakable container.
Note: E
T+ symbol
N symbol
R: 45-25-26-48/25-51/53
S: 53-45-61
UN Hazard Class: 6.1
UN Packing Group: I
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Important Data
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Physical State; Appearance:
YELLOW
OILY
LIQUID
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing
nitrogen oxides
.
Reacts
with
strong oxidants
and
strong bases
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Occupational Exposure Limits:
TLV: (skin) A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2000).
MAK: skin absorption (H);
Carcinogen category: 2
(DFG 2006).
OSHA PEL: 1910.1016 See Appendix B
NIOSH REL: Ca See Appendix A
NIOSH IDLH: Ca N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation
and
by ingestion.
Inhalation Risk:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes,
the skin and
the respiratory tract.
The substance may cause effects on the
liver
, resulting in jaundice.
The effects may be delayed.
See Notes.
Medical observation is indicated.
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the
liver
, resulting in liver function impairment and cirrhosis.
This substance is probably carcinogenic to humans.
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Physical
Properties
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Boiling point: 151°C
Relative density (water = 1): 1.0
Solubility in water:
very good
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Vapour pressure, Pa at 20°C: 360
Relative vapour density (air = 1): 2.56
Flash point: 61°C
Octanol/water partition coefficient as log Pow: -0.57
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Environmental
Data
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N O T E S
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The symptoms of jaundice do not become manifest until some hours have passed.
Environmental effects from the substance have not been investigated
adequately
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Transport Emergency Card: TEC (R)-61G61b
Card has been partially updated in August 2007: see Ingestion First Aid, Occupational Exposure Limits.
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ADDITIONAL INFORMATION
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ICSC: 0525
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N-NITROSODIMETHYLAMINE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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