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N,N-DIMETHYLACETAMIDE

ICSC: 0259

Acetic acid dimethylamide
Dimethylacetamide
C4H9NO / CH3CON(CH3)2
Molecular mass: 87.1
ICSC # 0259 		CAS # 127-19-5
RTECS # AB7700000
EC # 616-011-00-4
October 11, 2006 Validated

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 63°C explosive vapour/air mixtures may be formed.
Above 63°C use a closed system, ventilation.

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

•INHALATION Headache. Nausea.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN MAY BE ABSORBED! Redness. (Further see Inhalation).
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
•EYES
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 one or two glasses of water to drink. Do NOT induce vomiting. Refer for medical attention if you feel unwell

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: Chemical protection suit. 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. Separated from strong oxidants,

Note: E
T symbol
R: 61-20/21
S: 53-45
Signal: Danger
Excl mark-Enviro
Causes damage to liver through prolonged or repeated exposure if in contact with skin
ICSC: 0259 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.

N,N-DIMETHYLACETAMIDE

ICSC: 0259

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

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes. Reacts with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 ppm as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued (ACGIH 2006).
EU OEL: 36 mg/m3 as TWA, 72 mg/m3 as STEL (skin) (EU 2006).
OSHA PEL: TWA 10 ppm (35 mg/m3) skin
NIOSH REL: TWA 10 ppm (35 mg/m3) skin
NIOSH IDLH: 300 ppm See: 127195


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:


EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the liver , resulting in impaired functions. Animal tests show that this substance possibly causes toxicity to human reproduction or development.

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: 63°C c.c.
Auto-ignition temperature: 490°C
Explosive limits, vol% in air: 1.8 - 11.5
Octanol/water partition coefficient as log Pow: -0.77

ENVIRONMENTAL
DATA


N O T E S

Depending on the degree of exposure, periodic medical examination is suggested. No odour warning if toxic concentrations are present.
NFPA Code: H 2; F 2; R 0;

ADDITIONAL INFORMATION



ICSC: 0259 N,N-DIMETHYLACETAMIDE
(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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