ICSC 1492 - 1-PROPANETHIOL

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1-PROPANETHIOL	ICSC: 1492 (April 2006)
1-Mercaptopropane Propane-1-thiol n-Propyl mercaptan

CAS #: 107-03-9

UN #: 2402

EC Number: 203-455-5

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire. Heating will cause rise in pressure with risk of bursting. Vapour/air mixtures are explosive.	NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting.	Use powder, foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Drowsiness. Dizziness. Headache. Nausea.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness.	Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety spectacles.	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.	Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 3; UN Pack Group: II
STORAGE
Fireproof. Cool. Keep in a well-ventilated room. Separated from strong oxidants, strong bases and strong acids.
PACKAGING

1-PROPANETHIOL

ICSC: 1492

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. Physical dangers The vapour is heavier than air and may travel along the ground; distant ignition possible. Chemical dangers On combustion, forms corrosive fumes including hydrogen sulfide and sulfur oxides. Reacts violently with oxidants, reducing agents, strong acids and strong bases.	Formula: C₃H₈S / CH₃(CH₂)₂SH Molecular mass: 76.2 Boiling point: 68°C Melting point: -113°C Relative density (water = 1): 0.84 Solubility in water, g/100ml at 25°C: 0.190 Vapour pressure, kPa at 25°C: 20.7 (calculated) Relative vapour density (air = 1): 2.63 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.101 Flash point: -20°C Octanol/water partition coefficient as log Pow: 1.7 (estimated)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible.

Chemical dangers
On combustion, forms corrosive fumes including hydrogen sulfide and sulfur oxides. Reacts violently with oxidants, reducing agents, strong acids and strong bases.

Formula: C₃H₈S / CH₃(CH₂)₂SH
Molecular mass: 76.2
Boiling point: 68°C
Melting point: -113°C
Relative density (water = 1): 0.84
Solubility in water, g/100ml at 25°C: 0.190
Vapour pressure, kPa at 25°C: 20.7 (calculated)
Relative vapour density (air = 1): 2.63
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.101
Flash point: -20°C
Octanol/water partition coefficient as log Pow: 1.7 (estimated)

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract. Exposure at high levels could cause lowering of consciousness.	Inhalation risk No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. Exposure at high levels could cause lowering of consciousness.

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
Environmental effects from the substance have not been investigated adequately.

NOTES
Health effects of exposure to the substance have not been investigated adequately.

ADDITIONAL INFORMATION

EC Classification

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