Ethanethiol manufacturers and suppliers

Ethanethiol suppliers

Properties

Melting point:: -148 °C

Boiling point:: 35 °C(lit.)

Density: 0.839 g/mL at 25 °C(lit.)

vapor density: 2.1 (vs air)

vapor pressure: 8.51 psi ( 20 °C)

FEMA: 4258 | ETHANETHIOL

refractive index: n20/D 1.4306(lit.)

Flash point:: 1 °F

storage temp.: Store below +30°C.

solubility: Soluble in Ether, Alcohol, Acetone

pka: 10.6(at 25℃)

form: Liquid

color: Colorless

Odor: Strong chunk; offensive garlic.

explosive limit: 2.8-18%(V)

Odor Threshold: 0.0000087ppm

Water Solubility: Slightly miscible with water.

JECFA Number: 1659

Merck: 14,3726

BRN: 773638

Henry's Law Constant: 3.57(x 10^-3 atm?m³/mol) at 25 °C (Przyjazny et al., 1983)

Exposure limits: TLV-TWA 0.5 ppm (～1.3 mg/m³ ) (ACGIH and MSHA); ceiling 10 ppm (OSHA); IDLH 2500 ppm (NIOSH).

Dielectric constant: 6.9（14℃）

Stability:: Stable. Extremely flammable - note low flash point. Incompatible with oxidizing agents, strong acids. May form explosive mixtures with air.

LogP: 1.44

CAS DataBase Reference: 75-08-1(CAS DataBase Reference)

NIST Chemistry Reference: Ethanethiol(75-08-1)

EPA Substance Registry System: Ethyl mercaptan (75-08-1)

Safety Information

Symbol(GHS): GHS02,GHS07,GHS09

Signal word: Danger

Hazard statements: H224-H302+H332-H410

Precautionary statements: P210-P233-P273-P301+P312-P304+P340+P312-P403+P233

Hazard Codes: F,Xn,N,F+

Risk Statements: 11-20-50/53-51/53-12-20/22

Safety Statements: 16-25-60-61

OEL: Ceiling: 0.5 ppm (1.3 mg/m3) [15-minute]

RIDADR: UN 2363 3/PG 1

WGK Germany: 3

RTECS: KI9625000

F: 13

Autoignition Temperature: 570 °F

TSCA: Yes

HS Code: 2930 90 98

HazardClass: 3

PackingGroup: I

Hazardous Substances Data: 75-08-1(Hazardous Substances Data)

Toxicity: LD50 orally in Rabbit: 682 mg/kg

IDLA: 500 ppm

Use

The inhalation toxicity of ethanethiol islower than that of methanethiol. Intraperitoneal administration in rats at sublethaldoses caused deep sedation, followed bylethargy, restlessness, lack of muscular coordination, and skeletal muscle paralysis.Higher doses produced cyanosis, kidney andliver damage, respiratory depression, coma,and death. The intraperitoneal LD50 value inrats was 450 mg/kg (ACGIH 1986).Ethanethiol is metabolized to inorganicsulfate and ethyl methyl sulfone, and excreted. The oral LD50 value in rats is 680 mg/kg.In humans, repeated exposures to itsvapors at about 5 ppm concentration canproduce irritation of the nose and throat,headache, fatigue, and nausea.

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