Thiodiglycolic acid Chemical Properties

Melting point:

128-131 °C(lit.)

Boiling point:

241.69°C (rough estimate)

Density 

1.352 (estimate)

refractive index 

1.5500 (estimate)

storage temp. 

Store below +30°C.

solubility 

400g/l

form 

Crystalline Powder

pka

pK1:3.32;pK2:4.29 (25°C)

color 

White to grayish

PH

2.2 (10g/l, H2O, 20℃)

Water Solubility 

soluble

Sensitive 

Stench

Merck 

14,9331

BRN 

1764392

LogP

-0.780 (est)

CAS DataBase Reference

123-93-3(CAS DataBase Reference)

EPA Substance Registry System

Acetic acid, 2,2'-thiobis- (123-93-3)

Safety Information

Hazard Codes 

C

Risk Statements 

36/37/38-34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3261 8/PG 2

WGK Germany 

3

RTECS 

AJ6475000

F 

13

Autoignition Temperature

350 °C

Hazard Note 

Corrosive/Stench

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

HS Code 

29309070

Hazardous Substances Data

123-93-3(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: > 2000 mg/kg

MSDS

• Language:English Provider:Dicarboxydimethyl sulfide
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Thiodiglycolic acid Usage And Synthesis

Chemical Properties

GREYISH CRYSTALLINE POWDER

Uses

It finds it applications in the production of [1,4]oxathiane-2,6-dione by heating. It is employed as an anti-oxidant and reducing agent in cosmetics industry.

Uses

Detection of copper, lead, mercury, silver: Dubsky et al., C.A. 34, 6185 (1940).

Definition

ChEBI: Thiodiacetic acid is a dicarboxylic acid.

Safety Profile

Poison by intraperitoneal route. When heated to decomposition or on contact with acid or acid fumes it emits toxic fumes of SOx. See also MERCAPTOACETIC ACID.

Purification Methods

Crystallise the acid from water. [Beilstein 3 IV 612.]

Thiodiglycolic acid(123-93-3)Related Product Information

• 2,2'-Dithiosalicylic acid
• Iminodiacetic acid
• Stearic acid
• Folic acid
• CARBONYL SULFIDE
• 2-Thiobarbituric acid
• Hydrogen Sulfide
• Hyaluronic acid
• Citric acid
• Mercaptoacetic acid
• Dilauryl thiodipropionate
• Sodium sulfide
• DIETHYL THIOGLYCOLATE 96
• Dimethyl sulfide
• Ethyl 2-(Chlorosulfonyl)acetate
• Ascoric Acid
• DIPHENYL PHOSPHITE
• DIISOBUTYL PHOSPHITE