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ETHYLENE CYANOHYDRIN ICSC: 1026
Date of Peer Review: October 2001

3-Hydroxypropionitrile
2-Cyanoethanol
Glycol cyanohydrin
Methanolacetonitrile
CAS # 109-78-4 C3H5NO / HOCH2CH2CN
RTECS # MU5250000 Molecular mass: 71.08
UN #
EC #
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.
Powder, alcohol-resistant foam, carbon dioxide.
EXPLOSION


EXPOSURE


Inhalation
Ventilation.
Fresh air, rest.
Skin Redness.
Protective gloves.
Rinse skin with plenty of water or shower.
Eyes Redness. Pain.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. (Extra personal protection: filter type B.)
EU Classification
UN Classification

EMERGENCY RESPONSE STORAGE
NFPA Code: H1; F1; R2;
Separated from acids, bases, oxidants. Cool. Dry. Keep in a well-ventilated room.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK


ETHYLENE CYANOHYDRIN ICSC: 1026
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS TO YELLOW LIQUID

CHEMICAL DANGERS:
The substance may polymerize under the influence of organic base(s). The substance decomposes on heating or on contact with acids acid fumes, or water producing highly toxic fumes including hydrogen cyanide. Reacts violently with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour and by ingestion.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes and the skin.

PHYSICAL PROPERTIES
Boiling point (decomposes): 228C
Melting point: -46C
Relative density (water = 1): 1.04
Solubility in water: miscible
Vapour pressure, Pa at 25C: 10.7
Relative vapour density (air = 1): 2.45
Flash point: 129C o.c.
Auto-ignition temperature: 494C
Explosive limits, vol% in air: 2.3 - 12.1
Octanol/water partition coefficient as log Pow: -0.94
ENVIRONMENTAL DATA

NOTES
This substance is less hazardous than some other nitriles which easily form hydrogen cyanide in the body.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999