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1-Propanethiol

1-Propanethiol structure

CAS No:
107-03-9
Formula:
C3H8S
Chemical Name:
1-Propanethiol
Synonyms:
1-Propanethiol;Propyl mercaptan;n-Propyl mercaptan;1-Propyl mercaptan;n-Propanethiol;Propylthiol;n-Propylthiol;1-Mercaptopropane;1-Propylthiol
Categories:
Flavors and Fragrances > Synthetic Fragrances

Description

Propanethiol is chemically classified among the thiols, which are organic compounds with molecular formulas and structural formulas similar to alcohols, except that sulfur-containing sulfhydryl group (- SH) replaces the oxygen - containing hydroxyl group in the molecule. Propanethiol's basic molecular formula is C3H7SH, and its structural formula is similar to that of the alcohol n-propanol. Propyl mercaptan has a characteristic odor of cabbage.

1-Propanethiol Basic Attributes

Molecular Weight：

76.16

Exact Mass：

76.16

EC Number：

203-455-5

HScode：

29309070

Characteristics

PSA：

XLogP3：

1.7 (estimated)

Appearance：

Colorless Liquid

Density：

0.8411 g/cm³ @ Temp: 20 °C

Melting Point：

-113.3 °C

Boiling Point：

67-68 °C

Flash Point：

−5 °F

Refractive Index：

n 20/D 1.437(lit.)

Water Solubility：

H2O: immiscible

Storage Conditions：

Flammables area

Vapor Pressure：

122 mm Hg ( 20 °C)

Vapor Density：

2.54 (vs air)

Toxicity：

LD50 orally in Rabbit: 1790 mg/kg

Flammability characteristics：

Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.

Explosive limit：

Containers may explode in fire. ... Vapor may explode if ignited in an enclosed area.

Odor：

Offensive

Taste：

BELOW 2-3 PPM SWEET ONION & CABBAGE-LIKE FLAVOR

Safety Information

Packing level：

Hazard category：

Transport codes：

UN 2402 3/PG 2

wgk germany：

hazard class code：

11-22-37/38-41-50-36/37/38-21/22

safety instructions：

16-26-39-57-36/37/39-29

RTECS Number：

TZ7300000

Marks：

F,Xn,N

Storage features：

Fireproof. Cool. Keep in a well-ventilated room. Separated from strong oxidants, strong bases and strong acids.

Stability/Shelf Life：

Stable under normal temperatures and pressures.

Precautionary statement(s)：

P210-P261-P280-P305 + P351 + P338

Hazard Statements：

H225-H302-H315-H318-H335

1-Propanethiol Use and Manufacturing

Methods of Manufacturing

The preparation method is derived from the reaction of bromopropane and thiourea. Thiourea and bromopropane were refluxed in methanol solution for 3h. After methanol recovery, dilute sodium hydroxide solution was added and refluxed for 6h. Then, slowly add dilute sulfuric acid, and distill out the propyl mercaptan with the addition. When the dilute sulfuric acid is added, continue to distill until the oil beads cannot be evaporated. The collected oil layer is a crude product, dried with anhydrous calcium chloride, and then rectified, and the fractions of bp 66.5-76.5°C are collected as the finished product. In addition, propanol and hydrogen sulfide can also be obtained by catalytic reaction at 300 ~ 380 ℃.

Uses

Chemical intermediate, herbicide.

Material

Calcium chloride

2-Methoxyethanol

Sodium hydrosulfide

Downstream Products

Albendazole

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Guide of 1-Propanethiol

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Material
Downstream Products
Recommended Suppliers
Learn More Other Chemicals

1-Propanethiol

SDS

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