ICSC 1494 - tert-OCTYL MERCAPTAN

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tert-OCTYL MERCAPTAN	ICSC: 1494 (November 2003)
2,4,4-Trimethyl-2-pentanethiol tert-Octanethiol 2-Methyl-2-heptanethiol

CAS #: 141-59-3

UN #: 3023

EC Number: 205-490-1

	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 powder, carbon dioxide, foam. In case of fire: keep drums, etc., cool by spraying with water.

STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Headache. Nausea. Vomiting. Dizziness. Unconsciousness.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin		Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness.	Wear safety goggles or eye protection in combination with breathing protection.	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. Wash hands before eating.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: 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. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Subsidiary Risks: 3; UN Pack Group: I
STORAGE
Fireproof. Separated from strong bases, strong acids and oxidants.
PACKAGING

tert-OCTYL MERCAPTAN

ICSC: 1494

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Decomposes on burning. This produces toxic gases including hydrogen sulfide and sulfur oxides. Reacts violently with oxidants. This generates fire hazard. Reacts with strong acids, strong bases and strong reducing agents. Attacks many metals and rubber.	Formula: C₈H₁₈S / (CH₃)₂CSHCH₂C(CH₃)₃ Molecular mass: 146.3 Boiling point: 155°C Melting point: -74°C Relative density (water = 1): 0.85 Solubility in water: none Relative vapour density (air = 1): 5.0 Flash point: 46°C o.c. Explosive limits, vol% in air: 0.8-?

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
Decomposes on burning. This produces toxic gases including hydrogen sulfide and sulfur oxides. Reacts violently with oxidants. This generates fire hazard. Reacts with strong acids, strong bases and strong reducing agents. Attacks many metals and rubber.

Formula: C₈H₁₈S / (CH₃)₂CSHCH₂C(CH₃)₃
Molecular mass: 146.3
Boiling point: 155°C
Melting point: -74°C
Relative density (water = 1): 0.85
Solubility in water: none
Relative vapour density (air = 1): 5.0
Flash point: 46°C o.c.
Explosive limits, vol% in air: 0.8-?

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure The substance is mildly irritating to the eyes. The substance may cause effects on the central nervous system. This may result in convulsions, lowering of consciousness and respiratory depression. Exposure could cause death.	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, through the skin and by ingestion.

Effects of short-term exposure
The substance is mildly irritating to the eyes. The substance may cause effects on the central nervous system. This may result in convulsions, lowering of consciousness and respiratory depression. Exposure could cause death.

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

ADDITIONAL INFORMATION

EC Classification

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