Thiodiglycolic acid
Synonym(s):Thiodiglycolic acid;Dicarboxydimethyl sulfide;Thiodiglycollic acid, Bis(carboxymethyl)sulfide;2,2′-Dithiodiacetic acid;2,2′-Thio-bis(acetic acid)
- CAS NO.：123-93-3
- Empirical Formula: C4H6O4S
- Molecular Weight: 150.15
- MDL number: MFCD00004359
- EINECS: 204-663-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:08:57
What is Thiodiglycolic acid?
Chemical properties
GREYISH CRYSTALLINE POWDER
The Uses of Thiodiglycolic acid
Detection of copper, lead, mercury, silver: Dubsky et al., C.A. 34, 6185 (1940).
The Uses of Thiodiglycolic acid
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.
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.]
Properties of Thiodiglycolic acid
| 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 |
| pka | pK1:3.32;pK2:4.29 (25°C) |
| form | Crystalline Powder |
| color | White to grayish |
| PH | 2.2 (10g/l, H2O, 20℃) |
| Water Solubility | soluble |
| Sensitive | Stench |
| Merck | 14,9331 |
| BRN | 1764392 |
| CAS DataBase Reference | 123-93-3(CAS DataBase Reference) |
| EPA Substance Registry System | Acetic acid, 2,2'-thiobis- (123-93-3) |
Safety information for Thiodiglycolic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Thiodiglycolic acid
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