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NIOSH

COUMARIN

ICSC: 1105

1,2-Benzopyrone
2H-1-Benzopyran-2-one
C9H6O2
Molecular mass: 146.14
ICSC # 1105 		CAS # 91-64-5
RTECS # GN4200000
UN # 2811
March 27, 1998 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames.
Water spray, foam, powder, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

•INHALATION
Ventilation.
Fresh air, rest.
•SKIN MAY BE ABSORBED! Redness. Pain.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
•EYES
Face shield.
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. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Carefully collect remainder, then remove to safe place. (Extra personal protection: P2 filter respirator for harmful particles).
Separated from food and feedstuffs.
Do not transport with food and feedstuffs.
UN Hazard Class: 6.1
UN Packing Group: I,II,III
ICSC: 1105 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.

COUMARIN

ICSC: 1105

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS FLAKES , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:


OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the skin .

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
This substance is possibly carcinogenic to humans.

PHYSICAL
PROPERTIES

Boiling point: 297-299°C
Melting point: 68-70°C
Density: 0.94
g/cm3
Solubility in water: poor
Vapour pressure, kPa at 106°C: 0.13
Flash point: 150°C
Octanol/water partition coefficient as log Pow: 1.39

ENVIRONMENTAL
DATA


N O T E S

Transport Emergency Card: TEC (R)-61G12c

ADDITIONAL INFORMATION



ICSC: 1105 COUMARIN
(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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