Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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1-Mercaptooctane(111-88-6)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
1-Mercaptooctane
Synonyms
1-Mercaptoctane
Octane-1-thiol
Octyl mercaptan
Octylthiol
CAS
111-88-6
Formula
C8H18S
Molecular Weight
146.30000000000001
EINECS
203-918-1
Beilstein/Gmelin
1733101
Beilstein Reference
4-01-00-01767
EC Class
dangerous for the environment

Physical and Chemical Properties

Appearance
Colorless liquid with an offensive odor.
Solubility in water
Insoluble
Melting Point
-49
Boiling Point
199
Vapor Pressure
0.49 (25 C)
Density
0.859 g/cm3 (0 C)
pKa/pKb
10.64 (pKa)
Partition Coefficient
4.44
Heat Of Vaporization
45.4 kJ/mol
Usage
Polymerization conditioner, in synthesis.
Vapor Density
5.04
Saturation Concentration
2040 ppm at 37.7 C (calculated)
Refractive Index
1.4540 (20 C)

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Do not breathe dust, vapor, mist, or gas. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Ingestion
May cause digestive tract disturbances. May be harmful if swallowed.
Inhalation
May be fatal if inhaled. May cause respiratory tract irritation.
Skin
May cause skin irritation.
Eyes
May cause eye irritation.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
EC Risk Phrase
R 36/38
EC Safety Phrase
S 23 26 36
UN (DOT)
3336

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Poison Class
4

Fire Fighting Measures

Flash Point
68
Autoignition
240
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Combustible Liquid. Containers may explode when heated. Extinguishing media: Use water spray to cool fire-exposed containers. Cool containers with flooding quantities of water until well after fire is out. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Lower exp. limit
.8
Fire Potential
HIGHLY FLAMMABLE.

Accidental Release Measures

Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Provide ventilation.

Stability and Reactivity

Disposal Code
6
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong acids, alkali metals.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen sulfide.
Combustion Products
Fire will produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
3336
Hazard Class
3
Packing Group
I; II; III
HS Code
2930 90 70
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