3-METHYLPYRIDINE

International Chemical Safety Cards

3-METHYLPYRIDINE

ICSC: 0802

3-METHYLPYRIDINE
3-Picoline
beta-Picoline
m-Picoline
C₆H₇N/(C₅H₄N)CH₃
Molecular mass: 93.1
CAS # 108-99-6
RTECS # TJ5000000
ICSC # 0802
UN # 2313

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Flammable. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames, NO sparks, and NO smoking.	Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION	Above 38°C explosive vapour/air mixtures may be formed.	Above 38°C use a closed system, ventilation, and explosion-proof electrical equipment.	In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE		PREVENT GENERATION OF MISTS!
INHALATION	Burning sensation. Cough. Dizziness. Drowsiness. Headache. Laboured breathing. Nausea. Sore throat. Unconsciousness. Weakness.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Refer for medical attention.
SKIN	MAY BE ABSORBED! Dry skin. Redness. Burning sensation. Pain. Blisters (further see Inhalation).	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
EYES	Pain. Blurred vision. Severe deep burns.	Safety spectacles, 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	Abdominal pain. Burning sensation. Diarrhoea (further see Inhalation).	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

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 (extra personal protection: self-contained breathing apparatus).

Fireproof. Separated from strong oxidants, acids.

UN Hazard Class: 3
UN Packing Group: II
Marine pollutant.

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0802

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

3-METHYLPYRIDINE

ICSC: 0802

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

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes (nitrogen oxides). Reacts with oxidants and strong acids.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV not established.
PDK (as mixture of isomers): 5 mg/m³ (USSR 1991).

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour, through the skin and 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 is corrosive to the eyes, the skin and the respiratory tract. Exposure far above the OEL may result in unconsciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin. The substance may have effects on the central nervous system.

PHYSICAL
PROPERTIES

Boiling point: 143-144°C
Melting point: -18.3°C
Relative density (water = 1): 0.96
Solubility in water: miscible
Vapour pressure, kPa at 25°C: 1.3

Relative vapour density (air = 1): 3.2
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.029
Flash point: 38°C (c.c.)°C
Explosive limits, vol% in air: 1.3-8.7
Octanol/water partition coefficient as log Pow: 1.20