N,N-DIMETHYLANILINE

International Chemical Safety Cards

N,N-DIMETHYLANILINE

ICSC: 0877

N,N-DIMETHYLANILINE
N,N-Dimethylphenylamine
C₈H₁₁N/C₆H₅N(CH₃)₂
Molecular mass: 121.2
CAS # 121-69-7
RTECS # BX4725000
ICSC # 0877
UN # 2253
EC # 612-016-00-0

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. NO contact with oxidants.	Powder, water spray, foam, carbon dioxide.
EXPLOSION	Above 62°C explosive vapour/air mixtures may be formed.	Above 62°C use a closed system, ventilation.	In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE
INHALATION	Abdominal pain. Blue skin. Dizziness. Headache. Ringing in the ears. Laboured breathing. Unconsciousness. Vomiting. Visual disturbance.	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.	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 take to a doctor.
INGESTION	(further 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

STORAGE

PACKAGING & LABELLING

Collect leaking and spilled liquid in sealable metal or glasscontainers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place (extra personal protection: complete protective clothing including self-contained breathing apparatus).

Separated from strong oxidants, food and feedstuffs. Ventilation along the floor.

Do not transport with food and feedstuffs.
T symbol
R: 23/24/25-33
S: 28-37-44
UN Hazard Class: 6.1
UN Packing Group: II

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0877

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-DIMETHYLANILINE

ICSC: 0877

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PHYSICAL STATE; APPEARANCE:
YELLOW OILY LIQUID , WITH CHARACTERISTIC ODOUR. TURNS BROWN ON EXPOSURE TO AIR.

PHYSICAL DANGERS:

CHEMICAL DANGERS:
The substance decomposes on heating or on burning producing highly toxic fumes (aniline, nitrogen oxides). The substance is a weak base. Reacts with oxidants.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV: 5 ppm; 25 mg/m³ (skin) (ACGIH 1991-1992).
MAK: STEL: 10 ppm; 50 mg/m³ (ACGIH 1991-1992).

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

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 may cause effects on the blood , resulting in formation of methaemoglobin. Exposure far above OEL could cause lowering of consciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization.

PHYSICAL
PROPERTIES

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
Octanol/water partition coefficient as log Pow: 2.3