IPCS INCHEM Home
MALONONITRILE
ICSC: 1466
Peer-Review Status: 05.07.2003 Validated
Propanedinitrile
Malonic acid dinitrile
Cyanoacetonitrile
Methylene dinitrile 
CAS #: 109-77-3 RTECS #: OO3150000
UN #: 2647
EC #: 608-009-00-7
EINECS #: 203-703-2
    Formula: C3H2N2 / NCCH2CN
Molecular mass: 66.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use water spray, dry powder, foam, carbon dioxide. 
EXPLOSION Risk of fire and explosion. See Chemical Dangers.     
 
EXPOSURE   STRICT HYGIENE!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Dizziness. Laboured breathing. Nausea. Vomiting. Weakness. Confusion. Convulsions. Unconciousness.  Use local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. Half-upright position. 
Skin MAY BE ABSORBED! Redness. Pain.  Protective clothing. Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Further see Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Vacuum spilled material with specialist equipment. If appropriate, moisten first to prevent dusting.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: T, N; R: 23/24/25-50/53; S: (1/2)-23-27-45-60-61 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GT2-II.  Cool. Separated from strong bases and food and feedstuffs. Well closed. Keep in a well-ventilated room. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS CRYSTALS OR WHITE POWDER. 

Physical dangers
 

Chemical dangers
The substance polymerizes under the influence of temperatures above 130°C or under the influence of bases. This generates fire or explosion hazard. Decomposes on heating. This produces toxic and corrosive gases including hydrogen cyanide and nitrogen oxides. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001). 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. 

Effects of short-term exposure
The substance is severely irritating to the eyes, skin and respiratory tract. The substance may cause effects on the cellular respiration (inhibition). This may result in convulsions, cardiac disorders and respiratory failure. Exposure at high levels could cause death. Medical observation is indicated. The effects may be delayed. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 218-220°C
Melting point: 30-34°C
Density: 1.19 g/cm³
Solubility in water, g/100ml at 20°C: 13.3 (moderate)
Vapour pressure, Pa at 25°C: 27
Relative vapour density (air = 1): 2.3
Flash point: 112°C o.c.
Octanol/water partition coefficient as log Pow: -0.6  
The substance is toxic to aquatic organisms. 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. 

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