Carboxyacetic acid
Dicarboxymethane
Propanedioic acid
Methanedicarboxylic acid
C3H4O4 / COOHCH2COOH
Molecular mass: 104.1
ICSC # 1085
CAS # 141-82-2
RTECS # OO0175000
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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,
water spray,
foam,
carbon dioxide.
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Explosion
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Exposure
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•Inhalation
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Cough.
Sore throat.
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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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Redness.
Pain.
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Safety goggles.
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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.
Diarrhoea.
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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Sweep spilled substance into covered containers.
Then wash away with plenty of water.
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Separated from
bases
and
strong oxidants.
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Important Data
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Physical State; Appearance:
WHITE
CRYSTALS
Physical Dangers:
Chemical Dangers:
The solution in water is a medium strong acid.
Reacts with strong oxidants.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
Effects of Short-Term Exposure:
The substance
is irritating to
the skin
and
is severely irritating to
the eyes
and
the respiratory tract
.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point (decomposes): 135°C
Density: 1.6
g/cm3
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Solubility in water, g/100 ml at 20°C: 7.3
Octanol/water partition coefficient as log Pow: -0.91/-0.18 (calculated)
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Environmental
Data
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N O T E S
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ADDITIONAL INFORMATION
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ICSC: 1085
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MALONIC ACID
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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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