ICSC 1619 - n-HEPTANETHIOL

« back to the search result list

n-HEPTANETHIOL	ICSC: 1619 (April 2006)
n-Heptylthiol n-Thioheptyl alcohol 1-Mercaptoheptane Heptyl mercaptan

CAS #: 1639-09-4

UN #: 3336

EC Number: 216-678-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Flammable. Gives off irritating or toxic fumes (or gases) in a fire. Above 46°C explosive vapour/air mixtures may be formed.	NO open flames, NO sparks and NO smoking. Above 46°C use a closed system, ventilation and explosion-proof electrical equipment.	Use water spray, powder, alcohol-resistant foam, carbon dioxide.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Dizziness. Drowsiness. Headache. Nausea.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness. Pain.	Protective gloves.	Remove contaminated clothes. 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. 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: III
STORAGE
Fireproof. Separated from strong oxidants, strong bases and strong acids.
PACKAGING

n-HEPTANETHIOL

ICSC: 1619

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 Reacts with oxidants, strong acids, strong bases and reducing agents. Decomposes on heating. This produces toxic and corrosive fumes including hydrogen sulfide and sulfur oxides.	Formula: C₇H₁₆S / CH₃(CH₂)₆SH Molecular mass: 132.3 Boiling point: 176°C Melting point: -43°C Relative density (water = 1): 0.84 Solubility in water: very poor Vapour pressure, kPa at 25°C: 0.17 Relative vapour density (air = 1): 4.6 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.006 Flash point: 46°C c.c. Explosive limits, vol% in air: 0.9-? Octanol/water partition coefficient as log Pow: 3.7 Viscosity: 1.24 cP at 20°C

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
Reacts with oxidants, strong acids, strong bases and reducing agents. Decomposes on heating. This produces toxic and corrosive fumes including hydrogen sulfide and sulfur oxides.

Formula: C₇H₁₆S / CH₃(CH₂)₆SH
Molecular mass: 132.3
Boiling point: 176°C
Melting point: -43°C
Relative density (water = 1): 0.84
Solubility in water: very poor
Vapour pressure, kPa at 25°C: 0.17
Relative vapour density (air = 1): 4.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.006
Flash point: 46°C c.c.
Explosive limits, vol% in air: 0.9-?
Octanol/water partition coefficient as log Pow: 3.7
Viscosity: 1.24 cP at 20°C

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

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.