1,1'-Thiobisethane Property

Melting point:

−100 °C(lit.)

Boiling point:

90-92 °C(lit.)

Density 

0.837 g/mL at 25 °C(lit.)

vapor pressure 

105 mm Hg ( 37.7 °C)

refractive index 

n20/D 1.442(lit.)

FEMA 

3825 | DIETHYL SULFIDE

Flash point:

15 °F

solubility 

H2O: insoluble

form 

liquid

Specific Gravity

0.837

color 

Colorless to Almost colorless

Odor

ethereal sulfurous

Odor Type

sulfurous

Odor Threshold

0.000033ppm

Water Solubility 

Miscible with alcohol, ethanol and ether. Slightly miscible with carbon tetrachloride. Immiscible with water.

Merck 

14,3854

JECFA Number

454

BRN 

1696909

Dielectric constant

7.2（20℃）

Stability:

Stable. Highly flammable. Incompatible with strong oxidizing agents.

LogP

1.95 at 20℃

CAS DataBase Reference

352-93-2(CAS DataBase Reference)

NIST Chemistry Reference

Diethyl sulfide(352-93-2)

EPA Substance Registry System

Diethyl sulfide (352-93-2)

Safety

Hazard Codes 

F,Xi

Risk Statements 

11-38-36/38

Safety Statements 

9-16-26-33-36

RIDADR 

UN 2375 3/PG 2

WGK Germany 

3

RTECS 

LC7200000

F 

13

TSCA 

Yes

HazardClass 

3

PackingGroup 

II

HS Code 

29309090

Hazardous Substances Data

352-93-2(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

1,1'-Thiobisethane Chemical Properties,Usage,Production

Chemical Properties

colourless liquid

Occurrence

Reported found in cabbage, sauerkraut, mustard, egg, chicken, beef, pork, beer (0.0002 to 0.0017 ppm), grape brandy (cognac, armagnac, weinbrand).

Uses

Diethyl sulfide is used as a solvent for anhydrous mineral salts and in plating baths for coating metals with gold or silver. It is used as a flavoring agent. It is also used in the addition reaction with platinum dichloride to prepare platinum ethynyl dimers and polymers with pendant ferrocenyl group. Further, it is used in the preparation of triethylsulfoniuim ethylsulfate by reaction with sulfuric acid diethyl ester. In addition to this, it is used in the quantification procedure of volatile sulfur compounds by solid-phase microextraction.

Uses

Diethyl sulfide may be used as an analytical standard for the determination of the analyte in wastewater, wines, and beer by gas chromatography (GC) based techniques.

Uses

Solvent for Anhydrous mineral salts; in plating baths for coating metals with gold or silver.

Definition

ChEBI: An ethyl sulfide compound having two ethyl groups attached to a sulfur atom.

Synthesis Reference(s)

Tetrahedron Letters, 14, p. 3853, 1973 DOI: 10.1016/S0040-4039(01)87056-8

General Description

A colorless oily liquid with a garlic-like odor. Less dense than water. Flash point 20°F. Vapors heavier than air. May irritate skin and eyes. Used to make other chemicals.

Air & Water Reactions

Highly flammable. Slightly soluble in water.

Reactivity Profile

Organosulfides, such as 1,1'-Thiobisethane, are incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. Many of these compounds may liberate hydrogen sulfide upon decomposition or reaction with an acid.

Health Hazard

May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Fire Hazard

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. 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. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Safety Profile

Mildly toxic by ingestion. A skin and eye irritant. A very dangerous fire hazard when exposed to heat, flame, or sparks; can react vigorously with oxidizers. Reacts with water, steam, acids, or acid fumes to produce toxic and flammable vapors. To fight fire, use water spray or mist, dry chemical, CO2, foam. When heated to decomposition it yields highly toxic fumes of SOx. See also SULFIDES.

Purification Methods

Wash the sulfide with aqueous 5% NaOH, then water, dry with CaCl2 and distil it from sodium. It can also be dried with MgSO4 or silica gel. Alternative purification is via the Hg(II) chloride complex [(Et)2S.2HgCl2] (see dimethyl sulfide). [Beilstein 1 IV 1394.]