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DIETHYLMALONATE
ICSC: 1739
Peer-Review Status: 04.10.2013 Validated
Propanedioic acid, diethyl ester
DEM
Carbethoxyacetic ester
Ethyl malonate
Diethyl propanedioate
Malonic acid, diethyl este 
CAS #: 105-53-3 RTECS #: OO0700000
EC #: 203-305-9
    Formula: C7H12O4
Molecular mass: 160.2

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames.  Use carbon dioxide, dry powder, water spray, foam. 
EXPLOSION Heating will cause rise in pressure with risk of bursting.    In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE      
Inhalation Cough.  Use ventilation.  Fresh air, rest. Seek medical attention if you feel unwell. 
Skin Redness.  Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion No acute symptoms expected.  Do not eat, drink, or smoke during work.  Give one or two glasses of water to drink. Seek medical attention if you feel unwell. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.   
EC Classification
 
UN Classification
 
GHS Classification
Signal: Warning
Combustible liquid
Causes eye irritation
Harmful to aquatic life 

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: F1; H2; 0.  Separated from strong oxidants. Ventilation along the floor. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID. 

Physical dangers
 

Chemical dangers
It reacts with strong oxidants. This generates fire and explosion hazard. 

Occupational exposure limits
TLV not established.
MAK (not established):. 

Routes of exposure
 

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed. 

Effects of short-term exposure
The substance is mildly irritating to the eyes. 

Effects of long-term or repeated exposure
Health effects of the substance have been investigated but none have been found 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 199°C
Density (at 20°C): 1.06 g/cm³
Explosive limits, vol% in air: 0.8 - 12.8
Flash point: 85°C c.c.
Melting point: -50°C
Auto-ignition temperature: 435°C
Octanol/water partition coefficient as log Pow: 0.96
Relative vapour density (air = 1): 5.52
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Solubility in water, g/l at 20°C: 20 (moderate)
Vapour pressure, Pa at 25°C: 36  
The substance is harmful to aquatic organisms. 

NOTES
 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Diethylmalonate (SIDS)