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NIOSH

N-METHYL DIETHANOLAMINE

ICSC: 1600

2,2`-(Methylimino)bis-ethanol
Diethanolmethylamine
Bis(2-hydroxyethyl)methylamine
C5H13O2N / CH3N(C2H4OH)2
Molecular mass: 119.2
ICSC # 1600 		CAS # 105-59-9
RTECS # KL7525000
EC # 603-079-00-5
October 20, 2005 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames.
Foam. Alcohol-resistant foam. Dry powder. Water spray.
EXPLOSION


EXPOSURE


•INHALATION Cough. Nausea. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest.
•SKIN Redness. Pain.
Protective gloves.
Rinse skin with plenty of water or shower.
•EYES Redness. Pain.
Safety goggles .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Nausea. Diarrhoea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: filter respirator for organic gases and vapours. Do NOT let this chemical enter the environment. Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Store in an area without drain or sewer access. Separated from strong acids.

Xi symbol
R: 36
S: 2-24
ICSC: 1600 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-METHYL DIETHANOLAMINE

ICSC: 1600

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

PHYSICAL DANGERS:
The vapour is heavier than air.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes . The solution in water is a medium strong base. Reacts violently with acids and oxidants .

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK: IIb (not established but data is available); (DFG 2005).


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes and the skin .

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 247°C
Melting point: -21°C
Relative density (water = 1): 1.04
Solubility in water, g/100 ml at 25°C: 100
Vapour pressure, Pa at 25°C: 0.03
Relative vapour density (air = 1): 4.12
Flash point: 136°C c.c.
Auto-ignition temperature: 265°C
Explosive limits, vol% in air: 0.9-8.4
Octanol/water partition coefficient as log Pow: -1.08

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

NFPA Code: H1; F1; R0;

ADDITIONAL INFORMATION



ICSC: 1600 N-METHYL DIETHANOLAMINE
(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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