International Chemical Safety Cards

N,N-DIMETHYLACETAMIDE ICSC: 0259
N,N-DIMETHYLACETAMIDE
Acetic acid dimethylamide
Dimethylacetamide
CH3CON(CH3)2
Molecular mass: 87.1
CAS # 127-19-5
RTECS # AB7700000
ICSC # 0259
EC # 616-011-00-4
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 70°C explosive vapour/air mixtures may be formed.
Above 70°C closed system, ventilation, and explosion-proof electrical equipment.

 
EXPOSURE
STRICT HYGIENE! AVOID EXPOSURE OF (PREGNANT) WOMEN!

INHALATION Headache. Nausea. Vomiting.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.
SKIN MAY BE ABSORBED! Redness (further see Inhalation).
Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
EYES VAPOUR WILL BE ABSORBED! Redness. Pain.
Face shield.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION Abdominal cramps. Diarrhoea (further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. 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.
Well closed. Ventilation along the floor.

Xn symbol
R: 20/21-36
S: 26-28-36
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0259 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,N-DIMETHYLACETAMIDE ICSC: 0259

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PHYSICAL STATE; APPEARANCE:
OILY, COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes (nitrogen oxides). Attacks many plastics.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV (as TWA): 10 ppm; 36 mg/m3 (skin) (ACGIH 1992-1993).
MAK: 10 ppm; 35 mg/m3; H (1992).


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 be reached rather slowly on evaporation of this substance at 20°C.

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

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin. The substance may have effects on the central nervous system and liver.
PHYSICAL
PROPERTIES
 Boiling point: 165°C
Melting point: -20°C
Relative density (water = 1): 0.94
Solubility in water: miscible
Vapour pressure, kPa at 20°C: 0.33
Relative vapour density (air = 1): 3.01		 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 70°C (o.c.)
Auto-ignition temperature: 490°C
Explosive limits, vol% in air: 1.8 (at 100°C) - 11.5 (at 160°C)
Octanol/water partition coefficient as log Pow: -0.77
ENVIRONMENTAL
DATA
 This substance may be hazardous to the environment; special attention should be given to soil.
NOTES
Use of alcoholic beverages enhances the harmful effect. Depending on the degree of exposure, periodic medical examination is indicated. No odour warning if toxic concentrations are present. Absorption through the skin proceeds very quickly. Most types of protective gloves are not entirely effective.
Transport Emergency Card: TEC (R)-30G37
NFPA Code: H 2; F 2; R 0;
ADDITIONAL INFORMATION


ICSC: 0259 N,N-DIMETHYLACETAMIDE
© IPCS, CEC, 1993
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.