International Chemical Safety Cards

N-METHYL-2-PYRROLIDONE

ICSC: 0513

N-METHYL-2-PYRROLIDONE
1-Methyl-2-pyrrolidinone
1-Methyl-2-pyrrolidone
N-Methylpyrrolidone
C₅H₉NO
Molecular mass: 99.1
CAS # 872-50-4
RTECS # UY5790000
ICSC # 0513
EC # 606-021-00-7

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, water spray, carbon dioxide.
EXPLOSION	Above 96°C explosive vapour/air mixtures may be formed.	Above 96°C use a closed system, ventilation.

EXPOSURE		PREVENT GENERATION OF MISTS!
INHALATION	Headache.	Ventilation.	Fresh air, rest. Refer for medical attention.
SKIN	MAY BE ABSORBED! Dry skin. Redness.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
EYES	Redness. Pain. Blurred vision.	Safety spectacles.	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. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

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 respirator for organic gases and vapours).

Separated from oxidants, rubber, plastics, aluminium, light metals. Dry. Ventilation along the floor.

Xi symbol
R: 36/38
S: (2)-41

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0513

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

N-METHYL-2-PYRROLIDONE

ICSC: 0513

I

M

P

O

R

T

A

N

T

D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS HYGROSCOPIC LIQUID , WITH CHARACTERISTIC ODOUR. TURNS YELLOW ON EXPOSURE TO HEAT.

PHYSICAL DANGERS:

CHEMICAL DANGERS:
The substance decomposes on heating or on burning producing toxic fumes including nitrogen oxides, carbon monoxide. Attacks aluminium, light metals, rubber, plastic.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV not established.
MAK: 20 ppm; 80 mg/m³; skin (1996).

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and through the skin.

INHALATION RISK:
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C, on spraying however much quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes and the skin. Swallowing the liquid may cause aspiration into the lungs with the risk of chemical pneumonitis.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Animal tests show that this substance possibly causes toxic effects upon human reproduction.

PHYSICAL
PROPERTIES

Boiling point: 202°C
Melting point: -24°C
Relative density (water = 1): 1.03
Solubility in water: very good
Vapour pressure, Pa at 25°C: 66

Relative vapour density (air = 1): 3.4
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 96°C o.c.
Auto-ignition temperature: 270°C
Explosive limits, vol% in air: 0.99-3.9

IMPORTANT LEGAL NOTICE:

Neither the CEC or 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. 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.