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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2-Methylbenzenethiol(137-06-4)

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
2-Methylbenzenethiol
Synonyms
2-Methylbenzenethiol
2-Methylthiophenol
o-Toluenethiol
CAS
137-06-4
Formula
C7H8S
Molecular Weight
124.21
EINECS
205-276-8
RTECS
XT8750000
RTECS Class
Other
Merck
12,9461
Beilstein/Gmelin
774068
Beilstein Reference
4-06-00-02014
EC Class
irritant

Physical and Chemical Properties

Appearance
White to yellowish moist crystals, musty odor.
Solubility in water
Insoluble
Melting Point
4.5
Boiling Point
195
Vapor Pressure
0.6 (25 C)
Density
1.041 g/cm3 (20 C)
pKa/pKb
6.64 (pKa)
Partition Coefficient
2.98
Heat Of Vaporization
41.4 kJ/mol
Usage
Antiseptic, dermatologic unspecified isomer.
Saturation Concentration
860 ppm at 25 C (calc.)
Odor threshold
1.0X10-4 mg/L
Refractive Index
1.57 (20 C)

First Aid Measures

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

Handling and Storage

Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. 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 pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Inhalation
Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Skin
Causes skin irritation. The toxicological properties of this material have not been fully investigated.
Eyes
Causes eye irritation. The toxicological properties of this material have not been fully investigated.
Ingestion
The toxicological properties of this substance have not been fully investigated. Causes gastrointestinal tract irritation.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
EC Risk Phrase
R 20/21/22 36/38
EC Safety Phrase
S 26 36/37/39
UN (DOT)
2810

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 and clothing to prevent skin exposure. Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions. 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.
Exposure Effects
Shock with a weak irregular pulse, abnormally low blood pressure, shallow respirations, reduced body temperature and respiratory failure may occur. CNS depression and brain damage may occur. Although o-cresol is not a confirmed human reproductive hazard at the present time, female enamel-wire workers exposed to cresol and other substances experienced excessive menstrual bleeding, gynecological disorders and increased birth defects. There is speculation that methemoglobinemia may be especially harmful to the fetus.

Fire Fighting Measures

Flash Point
63
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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Use agent most appropriate to extinguish fire.
Fire Potential
Combustible material: may burn but does not ignite readily.

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. Use a spark-proof tool. Provide ventilation.

Stability and Reactivity

Disposal Code
6
Incompatibilities
Oxidizing agents
Stability
Stable under normal temperatures and pressures.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen sulfide.
Combustion Products
When heated to decomp, it emits toxic fumes of sulfur oxides.

Transport Information

UN Number
2810
Hazard Class
6.1
Packing Group
I; II; III
HS Code
2930 90 70
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