Product Identification

Product Name

2,3,3,4,4,5-Hexamethyl-2-hexanethiol

Synonyms

2,3,3,4,4,5-Hexamethylhexane-2-thiol
Sulfole 120
t-DDM
tert-Dodecyl mercaptan
tert-Dodecyl thiol
tert-Lauryl mercaptan

CAS

25103-58-6

Formula

C12H26S

Molecular Weight

202.4

EINECS

246-619-1

RTECS

JR3150000

RTECS Class

Primary Irritant

Beilstein/Gmelin

1738382

Beilstein Reference

3-01-00-01794

EC Class

irritant, dangerous for the environment

Physical and Chemical Properties

Appearance

White to yellow liquid.

Melting Point

-7.5

Boiling Point

189 - 207

Density

0.855 g/cm3 (20 C)

Usage

Used as a chemical intermediate.

Refractive Index

1.464 (20 C)

First Aid Measures

Ingestion

DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.

Inhalation

IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.

Skin

IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

Eyes

First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Handling and Storage

Storage

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion

See inhalation.

Inhalation

Symptoms of exposure to this compound include slight irritation of the skin and eyes, headache, nausea, unconsciousness, sedation, muscle weakness, pulmonary edema and chemical pneumonitis.

Skin

See inhalation.

Eyes

See inhalation

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 hazard indoors, outdoors or in sewers.

EC Risk Phrase

R 36/38 51/53

EC Safety Phrase

S 61

UN (DOT)

3336

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.

Poison Class

4

Fire Fighting Measures

Flash Point

96

Fire Fighting

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

If you spill this chemical, FIRST REMOVE ALL SOURCES OF IGNITION. Then, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with 60-70% ethanol followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

Stability and Reactivity

Disposal Code

6

Incompatibilities

Incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents Incompatible with oxygen Incompatible with strong oxidizing agents Sensitive to heat.

Stability

No data.

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