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NIOSH

gamma-BUTYROLACTONE

ICSC: 1020

1,4-Butanolide
Butyric acid lactone
Tetrahydro-2-furanone
Dihydro-2(3H)-furanone
C4H6O2
Molecular mass: 86.1
ICSC # 1020 		CAS # 96-48-0
RTECS # LU3500000
March 10, 2000 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames.
Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION


EXPOSURE


•INHALATION
Ventilation.
Fresh air, rest.
•SKIN
Protective gloves.
Rinse skin with plenty of water or shower.
•EYES Redness. Pain.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Vomiting. Drowsiness. Laboured breathing. Unconsciousness.
Do not eat, drink, or smoke during work.
Rinse mouth. Rest. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. (Extra personal protection: filter respirator for organic gases and vapours).
Separated from acids, alcohols , amines and bases . Dry.

ICSC: 1020 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

gamma-BUTYROLACTONE

ICSC: 1020

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PHYSICAL STATE; APPEARANCE:
COLOURLESS , OILY , HYGROSCOPIC LIQUID .

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts with acids , bases , alcohols and amines . The substance decomposes on burning producing irritating fumes .

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 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes . The substance may cause effects on the central nervous system , resulting in respiratory failure when ingested. Exposure could cause lowering of consciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 204°C
Melting point: -44°C
Relative density (water = 1): 1.1
Solubility in water:
miscible
Vapour pressure, kPa at 20°C: 0.15
Relative vapour density (air = 1): 3.0
Flash point:
98°C c.c.
Auto-ignition temperature: 455°C
Explosive limits, vol% in air: 0.3-16.0
Octanol/water partition coefficient as log Pow: -0.57

ENVIRONMENTAL
DATA


N O T E S

Use of alcoholic beverages enhances the harmful effect.
NFPA Code: H0; F1; R0;

ADDITIONAL INFORMATION



ICSC: 1020 gamma-BUTYROLACTONE
(C) IPCS, CEC, 1994
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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