ICSC 1521 - 1-PENTANETHIOL

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1-PENTANETHIOL	ICSC: 1521 (April 2004)
Amyl mercaptan Pentyl mercaptan Amyl hydrosulfide 2-Methylbutyl mercaptan

CAS #: 110-66-7

UN #: 1111

EC Number: 203-789-1

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


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Headache. Nausea. Cough.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Redness. Pain.	Protective gloves.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
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	Burning sensation in the throat and chest. Headache. Nausea.	Do not eat, drink, or smoke during work.	Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Remove all ignition sources. Cover the spilled material with inert absorbent. Sweep spilled substance into covered sealable containers. Do NOT wash away into sewer.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 3; UN Pack Group: II
STORAGE
Fireproof.
PACKAGING

1-PENTANETHIOL

ICSC: 1521

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. Physical dangers The vapour mixes well with air, explosive mixtures are easily formed. Chemical dangers Decomposes on burning. This produces toxic and corrosive fumes including hydrogen sulfide and sulfur oxides. Reacts with acids, bases and strong oxidants.	Formula: C₅H₁₂S / CH₃(CH₂)₄SH Molecular mass: 104.2 Boiling point at 61.3kPa: 126.6°C Melting point: -75.7°C Relative density (water = 1): 0.84 Solubility in water: none Vapour pressure, kPa at 25°C: 1.84 Relative vapour density (air = 1): 3.6 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.05 Flash point: 18°C

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.

Physical dangers
The vapour mixes well with air, explosive mixtures are easily formed.

Chemical dangers
Decomposes on burning. This produces toxic and corrosive fumes including hydrogen sulfide and sulfur oxides. Reacts with acids, bases and strong oxidants.

Formula: C₅H₁₂S / CH₃(CH₂)₄SH
Molecular mass: 104.2
Boiling point at 61.3kPa: 126.6°C
Melting point: -75.7°C
Relative density (water = 1): 0.84
Solubility in water: none
Vapour pressure, kPa at 25°C: 1.84
Relative vapour density (air = 1): 3.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.05
Flash point: 18°C

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract.	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 of its aerosol.

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract.

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

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

ADDITIONAL INFORMATION

EC Classification

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