Methanamide
Carbamaldehyde
CH3NO / HCONH2
Molecular mass: 45.0
ICSC # 0891
CAS # 75-12-7
RTECS # LQ0525000
EC # 616-052-00-8
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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.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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Explosion
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Exposure
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PREVENT GENERATION OF MISTS!
AVOID Exposure OF (PREGNANT) WOMEN!
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•Inhalation
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Drowsiness.
Headache.
Nausea.
Unconsciousness.
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Ventilation.
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Fresh air, rest.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
Redness.
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Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
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Face shield.
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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 pain.
(See Inhalation).
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Rest.
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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Collect leaking and spilled liquid in sealable steel (not copper) containers as far as possible.
Wash away spilled liquid with plenty of water.
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Separated from
oxidants
.
Dry.
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T symbol
R: 61
S: 53-45
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Important Data
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Physical State; Appearance:
COLOURLESS, HYGROSCOPIC, VISCOUS LIQUID.
Physical Dangers:
Chemical Dangers:
On combustion, forms toxic gases (nitrogen oxides).
The substance decomposes
on heating at 180°C
producing
ammonia
,
water
,
carbon monoxide
and
hydrogen cyanide
.
Reacts withoxidants.
Attacks metals such as aluminium, iron, copper and natural rubber.
Occupational Exposure Limits:
TLV: 10 ppm as TWA; (skin); (ACGIH 2004).
OSHA PEL: none
NIOSH REL: TWA 10 ppm (15 mg/m3) skin
NIOSH IDLH: N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour,
through the skin
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
and
the skin
.
The substance may cause effects on the
central nervous system
.
Effects of Long-Term or Repeated Exposure:
Animal tests show that this substance possibly causes toxic effects upon human reproduction.
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Physical
Properties
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Boiling point (decomposes): 210°C
Melting point: 2.5°C
Relative density (water = 1): 1.13
Solubility in water:
very good
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Vapour pressure, Pa at 20°C: about 2
Relative vapour density (air = 1): 1.6
Flash point: 154°C o.c.
Auto-ignition temperature: >500°C
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Environmental
Data
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N O T E S
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Depending on the degree of exposure, periodic medical examination is suggested.
Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
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ADDITIONAL INFORMATION
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ICSC: 0891
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FORMAMIDE
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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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