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Thioacetic acid

Chemical properties Uses Production methods Hazards & Safety Information
Thioacetic acid
Thioacetic acid structure
CAS No.
507-09-5
Chemical Name:
Thioacetic acid
Synonyms
TAA;CH3COSH;ATA(TM);thioacetic;usafek-p-737;Usaf EK-P-737;Thioessigsure;thio-aceticaci;THIACETIC ACID;acetylmercaptan
CBNumber:
CB4853697
Molecular Formula:
C2H4OS
Formula Weight:
76.12
MOL File:
507-09-5.mol

Thioacetic acid Properties

Melting point:
-17 °C
Boiling point:
97 °C
Density 
1.065 g/mL at 25 °C(lit.)
vapor pressure 
1 hPa (20 °C)
FEMA 
4210 | THIOACETIC ACID
refractive index 
n20/D 1.465(lit.)
Flash point:
52 °F
storage temp. 
Refrigerator
solubility 
27g/l (slow decomposition)
form 
Liquid
pka
3.33(at 25℃)
color 
Clear colorless to pale yellow
PH
1.8 (100g/l, H2O, 20℃)Hydrolysis
Water Solubility 
27 g/L (15 ºC) (hydrolyse)
Merck 
14,9320
JECFA Number
1676
BRN 
773684
Stability:
Stable. Flammable. Incompatible with metals, strong oxidizing agents.
CAS DataBase Reference
507-09-5(CAS DataBase Reference)
NIST Chemistry Reference
Ethanethioic acid(507-09-5)
EPA Substance Registry System
Ethanethioic acid(507-09-5)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS05,GHS06,GHS07
Signal word  Danger
Hazard statements  H302-H314-H332-H225-H301-H317-H318
Precautionary statements  P210-P280-P305+P351+P338+P310-P370+P378-P403+P235-P301+P310+P330-P333+P313-P260h-P303+P361+P353-P305+P351+P338-P405-P501a
Hazard Codes  F,C,Xn
Risk Statements  11-34-22-43-41
Safety Statements  9-16-26-36/37/39-45-28-23
RIDADR  UN 2436 3/PG 2
WGK Germany  3
RTECS  AJ5600000
13-19
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29309070
Toxicity LD50 orally in Rabbit: 200 - 350 mg/kg

Thioacetic acid price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich T30805 Thioacetic acid 96% 507-09-5 5g $23.6 2018-11-13 Buy
Sigma-Aldrich T30805 Thioacetic acid 96% 507-09-5 100g $47.3 2018-11-13 Buy
TCI Chemical T0189 Thioacetic Acid >95.0%(GC) 507-09-5 25mL $19 2018-11-22 Buy
TCI Chemical T0189 Thioacetic Acid >95.0%(GC) 507-09-5 100mL $38 2018-11-22 Buy
Alfa Aesar L03305 Thioacetic acid 97% 507-09-5 100g $38.9 2018-11-20 Buy

Thioacetic acid Chemical Properties,Uses,Production

Chemical properties

Thioacetic acid is acid containing thiol group, it is also known as thioacetate, thiol acetic acid, acetic acid. It is yellow fuming liquid with unpleasant and pungent odor, chemical property is active, reactivity is very strong, it can prapare mercaptan by reaction with unsaturated aliphatic hydrocarbon and alcohol.
CH3COSH + CH2 = CHCH3 → CH3CH2CH2SH
CH3COSH + CH3CH2OH → CH3CH2SH
Reaction with ethylene oxide can prepare acetylthio ethanol.
CH3COSH + (CH2) 2O → CH3COSCH2CH2OH
Four methods of laboratory prepared thioacetic acid:
1, acetic acid and phosphorus pentasulfide at 91℃ react, vacuum distillation is further refined and product can obtain.
5CH3COOH + P2S5 → CH3COSHC2H4OS + P2O5
2, chloride and hydrogen sulfide react, after dilute lye neutralizes and distillation refines. It can be obtained.
3, the reaction of acetic anhydride with hydrogen sulfide, thioacetic acid can be obtained, while byproduct of acetic acid can get.
4, the reaction of ketene with hydrogen sulfide can directly obtain.
Uses: In laboratory, it can instead of hydrogen sulfide, it can be used verification of cobalt and lead, determination of molybdenum, sulfur synthetic aldehydes and ketones sulfur, histochemical determination of esterase, it can be used as tear gas and so on.

Uses

1. This product can be used as organic synthesis acetylthio agent and mercapto agent, it is mainly used for lipoic acid, cystine and synthetic mercapto carboxylic acids, it can also be used for hormone antidote, cephalosporins sex and fungicides, modifiers and additives for synthetic polymers. For reagents, flavors and fragrances, cosmetics, synthetic captopril.
2. It can be used as pharmaceuticals, flavors and fragrances intermediates.
3. It can be used as chemical reagent, precipitation agent and catalyst.

Production methods

It can be obtained by thermal distillation of ice aldehyde acid with five-thiodipropionic phosphorus. Finely powdered phosphorus pentasulfide is added into glacial acetic acid. When heated to 91℃, it start distilles thioacetic acid, it need to prevent bumping during heating, distillation temperature must not exceed 100 ℃. Distillate distilles once again can derive product.

Hazards & Safety Information

Category: corrosive materials
Toxicity grading: highly toxic Acute intraperitoneal toxicity-mouse LD50: 75 mg/kg
Flammability Combustible hazardous characteristics: it is combustible, easy to decompose into acetic acid and toxic hydrogen sulfide gas
Storage characteristics: Treasury ventilation low-temperature drying; and it should be stored separately with oxidants, alkali.
Extinguishant: sand, foam, water spray, carbon dioxide.

Chemical Properties

colourless fuming liquid with an unpleasant odour

Chemical Properties

Pale yellow liquid; cooked brown and roasted meat aroma.

Uses

Chemical reagent, lachrymator.

Definition

ChEBI: A thioacetic acid that is acetic acid in which the oxygen atom of the hydroxy group has been replaced by a sulfur atom.

General Description

A clear,yellow liquid with a strong, unpleasant odor. May be toxic by ingestion, inhalation and skin absorption. Irritating to skin and eyes. Flash point near 50°F. Used to make other chemicals.

Air & Water Reactions

Highly flammable. Water soluble.

Reactivity Profile

Thioacetic acid is a thio organic acid. Organosulfides 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.

Hazard

Toxic by ingestion and inhalation; strong irritant to eyes and skin.

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

Poison by intraperitoneal route. A very dangerous fire hazard when exposed to heat or flame. When heated to decomposition it emits toxic fumes of SOx. See also SULFIDES and MERCAPTANS.

Thioacetic acid Preparation Products And Raw materials

Raw materials

Preparation Products


Thioacetic acid Suppliers

Global( 192)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 sales@capotchem.com China 19918 60
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 Abel@chembj.com CHINA 3194 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32447 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30001 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23980 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6372 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 sales@guangaobio.com CHINA 23049 58
Shandong chuangyingchemical Co., Ltd.
13156170209
sale@chuangyingchem.com CHINA 4405 58
Standardpharm Co. Ltd.
0714-3992388
yxzy@std-med.net CHINA 13504 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35440 58

View Lastest Price from Thioacetic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-20 Thioacetic acid
507-09-5
US $1.00 / KG 1KG 99% Customized career henan chemical co

Thioacetic acid Spectrum


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