ICSC 0877 - N,N-DIMETHYLANILINE

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N,N-DIMETHYLANILINE	ICSC: 0877 (March 1998)
N,N-Dimethylphenylamine

CAS #: 121-69-7

UN #: 2253

EC Number: 204-493-5

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Above 62°C explosive vapour/air mixtures may be formed.	NO open flames. NO contact with oxidizing agents. Above 62°C use a closed system and ventilation.	Use water spray, powder, foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Abdominal pain. Blue lips, fingernails and skin. Confusion. Convulsions. Dizziness. Headache. Laboured breathing. Nausea. Unconsciousness. Vomiting. Ringing in the ears. Visual disturbances.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	MAY BE ABSORBED! Redness.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes	Redness. Pain.	Wear face shield or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	See Inhalation.	Do not eat, drink, or smoke during work.	Rinse mouth. Give a slurry of activated charcoal in water to drink. Rest. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: chemical protection suit. Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable metal or glass containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: II
STORAGE
Separated from strong oxidants and food and feedstuffs. Ventilation along the floor.
PACKAGING
Do not transport with food and feedstuffs.

N,N-DIMETHYLANILINE

ICSC: 0877

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance YELLOW OILY LIQUID WITH CHARACTERISTIC ODOUR. TURNS BROWN ON EXPOSURE TO AIR. Physical dangers Chemical dangers Decomposes on heating. This produces highly toxic fumes of aniline and nitrogen oxides. Reacts with oxidants.	Formula: C₈H₁₁N / C₆H₅N(CH₃)₂ Molecular mass: 121.2 Boiling point: 192-194°C Melting point: 2.5°C Relative density (water = 1): 0.96 Solubility in water: none Vapour pressure, Pa at 20°C: 67 Relative vapour density (air = 1): 4.2 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.002 Flash point: 62°C Auto-ignition temperature: 371°C Explosive limits, vol% in air: 1-7 Octanol/water partition coefficient as log Pow: 2.3

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW OILY LIQUID WITH CHARACTERISTIC ODOUR. TURNS BROWN ON EXPOSURE TO AIR.

Physical dangers

Chemical dangers
Decomposes on heating. This produces highly toxic fumes of aniline and nitrogen oxides. Reacts with oxidants.

Formula: C₈H₁₁N / C₆H₅N(CH₃)₂
Molecular mass: 121.2
Boiling point: 192-194°C
Melting point: 2.5°C
Relative density (water = 1): 0.96
Solubility in water: none
Vapour pressure, Pa at 20°C: 67
Relative vapour density (air = 1): 4.2
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.002
Flash point: 62°C
Auto-ignition temperature: 371°C
Explosive limits, vol% in air: 1-7
Octanol/water partition coefficient as log Pow: 2.3

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. Exposure far above the OEL could cause lowering of consciousness. The effects may be delayed. Medical observation is indicated.	Inhalation risk A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure Repeated or prolonged contact with skin may cause dermatitis.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

Effects of short-term exposure
If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. Exposure far above the OEL could cause lowering of consciousness. The effects may be delayed. Medical observation is indicated.

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 5 ppm as TWA; 10 ppm as STEL; (skin); A4 (not classifiable as a human carcinogen); BEI issued. MAK: 25 mg/m³, 5 ppm; peak limitation category: II(2); skin absorption (H); carcinogen category: 3; pregnancy risk group: D

ENVIRONMENT
The substance is harmful to aquatic organisms.

NOTES
Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.

ADDITIONAL INFORMATION

EC Classification
Symbol: T, N; R: 23/24/25-40-51/53; S: (1/2)-28-36/37-45-61

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