1,2-Ethanedione
Biformyl
Ethanedial
Oxalaldehyde
C2H2O2 / OHCCHO
Molecular mass: 58.0
ICSC # 1162
CAS # 107-22-2
RTECS # MD2700000
EC # 605-016-00-7
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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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Carbon dioxide
,
foam
,
powder
.
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Explosion
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Exposure
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AVOID ALL CONTACT!
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•Inhalation
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Redness.
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Protective gloves.
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.
Pain.
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Safety goggles
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 pain.
Nausea.
Vomiting.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
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 containers as far as possible.
Use face shield.
Personal protection:
filter respirator for organic gases and vapours.
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Well closed.
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Note: B
Xn symbol
R: 20-36/38-43-68
S: 2-36/37
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Important Data
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Physical State; Appearance:
COLOURLESS
TO PALE
YELLOW
LIQUID
Physical Dangers:
Chemical Dangers:
The solution in water is a weak acid.
Occupational Exposure Limits:
TLV: (inhalable aerosol and vapor) 0.1 mg/m3 as TWA; A4 (not classifiable as a human carcinogen); SEN; (ACGIH 2003).
MAK: skin absorption (H); sensitization of skin (Sh);
Carcinogen category: 3B;
(DFG 2004).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour or
by inhalation of its aerosol,
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
and
the skin
.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
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Physical
Properties
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Boiling point: 104°C
Melting point: -14°C
Relative density (water = 1): 1.27
Vapour pressure, kPa at 20°C: 2.4
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Relative vapour density (air = 1): 1.27
Flash point: >100°C
Auto-ignition temperature: 285°C
Octanol/water partition coefficient as log Pow: -0.85
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Environmental
Data
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N O T E S
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The substance is also commercially available as a crystalline dihydrate (80% glyoxal).
Do NOT take working clothes home.
Card has been partly updated in April 2005. See section Occupational Exposure Limits.
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ADDITIONAL INFORMATION
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ICSC: 1162
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GLYOXAL (40% solution)
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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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