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NIOSH

N-METHYLANILINE

ICSC: 0921

N-Methylbenzenamine
Monomethylaniline
N-Methylphenylamine
C7H9N / C6H5NH(CH3)
Molecular mass: 107.2
ICSC # 0921 		CAS # 100-61-8
RTECS # BY4550000
UN # 2294
EC # 612-015-00-5
April 05, 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, water spray, foam, carbon dioxide.
EXPLOSION Above 79.5°C explosive vapour/air mixtures may be formed.
Above 79.5°C use a closed system, ventilation.

EXPOSURE
PREVENT GENERATION OF MISTS! STRICT HYGIENE!
IN ALL CASES CONSULT A DOCTOR!
•INHALATION Blue lips or finger nails. Blue skin. Cough. Dizziness. Headache. Laboured breathing. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN MAY BE ABSORBED! (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, or eye protection in combination with breathing protection.
First rinse with plenty of water (remove contact lenses if easily possible).
•INGESTION Abdominal pain. Blue lips or fingernails. Blue skin. Dizziness. Headache. Laboured breathing. Nausea.
Do not eat, drink, or smoke during work.
Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Chemical protection suit including self-contained breathing apparatus. 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. Do NOT let this chemical enter the environment.
Separated from strong oxidants, strong acids, food and feedstuffs. Keep in a well-ventilated room. Store in an area without drain or sewer access.
Do not transport with food and feedstuffs.
T symbol
N symbol
R: 23/24/25-33-50/53
S: 1/2-28-36/37-45-60-61
UN Hazard Class: 6.1
UN Packing Group: III
Signal: Danger
Excl mark-Health haz
Combustible liquid
Harmful if swallowed
Causes damage to blood
Harmful to aquatic life
ICSC: 0921 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-METHYLANILINE

ICSC: 0921

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M

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T

A

N

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D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS OR SLIGHTLY YELLOW OILY LIQUID, TURNS BROWN ON EXPOSURE TO AIR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating and on burning producing toxic fumes including nitrogen oxides and aniline. Reacts violently with strong acids and oxidants .

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.5 ppm as TWA (skin) BEI issued (ACGIH 2006).
MAK: 0.5 ppm 2.2 mg/m3 skin absorption (H);
Peak limitation category: II(2) Pregnancy risk group: D
(DFG 2007).
OSHA PEL†: TWA 2 ppm (9 mg/m3) skin
NIOSH REL: TWA 0.5 ppm (2 mg/m3) skin
NIOSH IDLH: 100 ppm See: 100618


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour, by inhalation of its aerosol, through the skin, by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly 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. The effects may be delayed. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 194-196°C
Melting point: -57°C
Relative density (water = 1): 0.99
Solubility in water: none
Vapour pressure, Pa at 20°C: 39.9
Relative vapour density (air = 1): 3.7
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.0
Flash point: 79.5°C c.c.
Octanol/water partition coefficient as log Pow: 1.7

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Transport Emergency Card: TEC (R)-61GT1-III
Card has been partially updated in March 2008: see Occupational Exposure Limits, Storage.

ADDITIONAL INFORMATION



ICSC: 0921 N-METHYLANILINE
(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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