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1-Propanethiol

1-Propanethiol
1-Propanethiol structure
CAS No.
107-03-9
Chemical Name:
1-Propanethiol
Synonyms
NPM;NPM(TM);n-C3H7SH;FEMA 3521;MERCAPTAN C3;Propanethiol;n-propylthiol;1-Propanediol;1-PROPANETHIOL;1-Propanethoil
CBNumber:
CB6852694
Molecular Formula:
C3H8S
Formula Weight:
76.16
MOL File:
107-03-9.mol

1-Propanethiol Properties

Melting point:
-113 °C
Boiling point:
67-68 °C(lit.)
Density 
0.841 g/mL at 25 °C(lit.)
vapor density 
2.54 (vs air)
vapor pressure 
122 mm Hg ( 20 °C)
refractive index 
n20/D 1.437(lit.)
FEMA 
3521 | PROPANETHIOL
Flash point:
−5 °F
storage temp. 
Store below +30°C.
solubility 
1.9g/l
form 
Liquid
pka
pK1:10.86 (25°C)
color 
Colorless
Odor Threshold
0.000013ppm
Water Solubility 
immiscible
Sensitive 
Air Sensitive
JECFA Number
509
BRN 
1696860
CAS DataBase Reference
107-03-9(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)
PROPYL MERCAPTAN
FDA 21 CFR
172.515
EWG's Food Scores
1
FDA UNII
4AB0N08V2H
NIST Chemistry Reference
1-Propanethiol(107-03-9)
EPA Substance Registry System
1-Propanethiol (107-03-9)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS05,GHS07,GHS09
Signal word  Danger
Hazard statements  H400-H225-H302-H315-H318-H335
Precautionary statements  P210-P261-P280-P305+P351+P338-P301+P312+P330-P304+P340+P312-P305+P351+P338+P310-P403+P235-P273-P403
Hazard Codes  F,Xn,N
Risk Statements  11-22-37/38-41-50-36/37/38-21/22
Safety Statements  16-26-39-57-36/37/39-29
RIDADR  UN 2402 3/PG 2
WGK Germany  3
RTECS  TZ7300000
13
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29309070
Toxicity LD50 orally in Rabbit: 1790 mg/kg
NFPA 704
3
2 0

1-Propanethiol price More Price(20)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.07529 1-Propanethiol for synthesis 107-03-9 5 mL $28.58 2021-03-22 Buy
Sigma-Aldrich 44784 Propyl mercaptan analytical standard 107-03-9 1ml $52.4 2021-03-22 Buy
Sigma-Aldrich 8.07529 1-Propanethiol for synthesis 107-03-9 250 mL $55.87 2021-03-22 Buy
Sigma-Aldrich W352101 Propyl mercaptan ≥97% 107-03-9 1 kg $82.7 2021-03-22 Buy
Sigma-Aldrich W352101 Propyl mercaptan ≥97% 107-03-9 2 kg $107 2021-03-22 Buy

1-Propanethiol Chemical Properties,Uses,Production

Description

Propane thiol is an organic compound with the molecular formula C3H8S. It belongs to the group of thiols. It is a colorless liquid with a strong, offensive odor. It is moderately toxic and is less dense than water and slightly soluble in water. It is used as a chemical intermediate and a herbicide . It is highly flammable and it gives off irritating or toxic fumes (or gases) in a fire. Heating it will cause rise in pressure with risk of bursting.

Chemical Properties

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.

Chemical Properties

Propyl mercaptan has a characteristic odor of cabbage. Below 2 to 3 ppm, it has a sweet onion and cabbage-like flavor.

Chemical Properties

clear colourless liquid

Occurrence

Reported found in onion (Allium cepa L.), garlic, shallot, roasted onion, raw leek, heated leek, chive, cooked chicken, beef, beer, American potato chips and durian (Durio zibethinus).

Uses

Chemical intermediate, herbicide.

Definition

ChEBI: An alkanethiol that is propane substituted by a thiol group at position 1.

Preparation

By reacting propyl alcohol and H2S under particular conditions; from propyl alcohol or propyl disulfide and naphthalene; from n-propyl chloride and potassium hydrosulfide; also from n-propanol plus bromine plus red phosphorus in the presence of sodium sulfate.

General Description

A colorless liquid with a strong, offensive odor. Moderately toxic. Flash point below 0°F. Less dense than water and slightly soluble in water. Hence floats on water. Used as a chemical intermediate and a herbicide.

Air & Water Reactions

Highly flammable. Vapors explosive when exposed to heat, flame or sparks. Slightly soluble in water.

Reactivity Profile

1-Propanethiol emits toxic fumes of oxides of sulfur when heated to decomposition. Reacts violently on contact with calcium hypochlorite [Chem. Eng. News, 1973, 51(26), p. 14].

Hazard

Highly flammable, dangerous fire risk.

Health Hazard

Inhalation causes muscular weakness, convulsions, and respiratory paralysis; high concentrations may cause pulmonary irritation. Contact with liquid causes irritation of eyes and skin. Ingestion causes irritation of mouth and stomach.

Fire Hazard

Special Hazards of Combustion Products: Toxic sulfur dioxide is generated.

Safety Profile

A poison. Moderately toxic by intraperitoneal route. Mildly toxic by inhalation. A severe eye irritant. A flammable liquid and very dangerous fire hazard when exposed to heat or flame. Explodes on contact with calcium hypochlorite. When heated to decomposition it emits toxic fumes of SOx. See also MERCAPTANS.

Purification Methods

Purify the thiol by dissolving it in aqueous 20% NaOH, extracting with a small amount of *benzene and steam distilling until clear. After cooling, the solution is acidified slightly with 15% H2SO4, and the thiol is distilled out, dried with anhydrous CaSO4 or CaCl2, and fractionally distilled under nitrogen. [Mathias & Filho J Phys Chem 62 1427 1958.] Also purify it by liberating the mercaptan by adding dilute HCl to the residue remaining after steam distilling. After direct distillation from the flask, and separation of the water, the mercaptan is dried (Na2SO4) and distilled under nitrogen. [Beilstein 1 IV 1449.]

1-Propanethiol Preparation Products And Raw materials

Raw materials

Preparation Products


1-Propanethiol Suppliers

Global( 199)Suppliers
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View Lastest Price from 1-Propanethiol manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-13 1-Propanethiol
107-03-9
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-09 1-Propanethiol
107-03-9
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-02 Propyl mercaptan
107-03-9
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

1-Propanethiol Spectrum


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