Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Hazards Identification
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Bis(2-mercaptoethyl) sulfide(3570-55-6)

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

Product Identification

Product Name
Bis(2-mercaptoethyl) sulfide
Synonyms
1,4,7-Trithiaheptane
1,5-Dimercapto-3-thiapentane
1-Mercapto-2-(mercaptoethylthio)ethane
2,2'-Dimercaptodiethyl sulfide
Bis(2-mercaptoethyl) sulfide
Bis(2-sulfanylethyl) sulfide
CAS
3570-55-6
Formula
C4H10S3
Molecular Weight
154.32
EINECS
222-671-0

Physical and Chemical Properties

Appearance
Liquid with a stench.
Solubility in water
Insoluble
Melting Point
-31
Boiling Point
276
Vapor Pressure
0.008 (25 C)
Density
1.183 g/cm3 (20 C)
pKa/pKb
9.48 (pKa)
Partition Coefficient
2.07
Heat Of Vaporization
49.4 kJ/mol

First Aid Measures

Ingestion
Seek medical treatment.
Inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
Skin
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
Eyes
Rinse opened eye for several minutes under running water. Then consult a doctor.

Handling and Storage

Storage
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers.

Exposure Controls/Personal Protection

Personal Protection
Protective work clothing. Chemical protective gloves. Safety glasses or goggles.
Exposure Effects
Thiols/mercaptans are skin, eye and respiratory irritants. Inhalation can cause central nervous system effects. Strong penetrating odor acts to minimize inhalation exposure.

Fire Fighting Measures

Flash Point
90
Fire Fighting
Extinguish with carbon dioxide, extinguishing powder or water spray. Fight larger fires with water spray or alcohol resistant foam. Wear self-contained respirator. Wear fully protective impervious suit.

Accidental Release Measures

Small spills/leaks
Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).

Stability and Reactivity

Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Oxidizing agents.
Combustion Products
Carbon monoxide and carbon dioxide. Sulfur oxides (SOx). Hydrogen sulfide.

Hazards Identification

EC Risk Phrase
R: 20 36/37/38
EC Safety Phrase
S: 9 23 26 36/37
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