Product Description
Basic Information
- Product name: thioglycolic acid
- Chemical Formula: C2H4O2S
- Molecular Weight: 92.11 g/mol
- Alternative Names: Mercaptoacetic Acid, TGA
- CAS Number: 68-11-1
- Appearance: Colorless to pale yellow liquid with a strong, pungent odor (resembling rotten eggs due to the sulfur group).
- Solubility: Highly soluble in water, ethanol, and ether; miscible with most polar solvents.
Physical and Chemical Properties
Physical Properties
- Boiling Point: 123-125 °C (at 15 mmHg)
- Melting Point: -16.5 °C
- Specific Gravity (20 °C): 1.325 g/mL
- Refractive Index (20 °C): 1.503
- Viscosity: Moderately viscous liquid.
Chemical Properties
- Acidity: It is a weak organic acid with a pKa of ~3.6, dissociating to release hydrogen ions (H) and thioglycolate anions (HSCH2COO).
- Reductive Activity: The thiol group (-SH) exhibits strong reducing properties, easily forming disulfide bonds (e.g., R-S-S-R) with other thiols or oxidizing agents.
- Complexation: Can form stable complexes with metal ions (e.g., iron, copper, zinc), making it useful in chelation reactions.
Applications
- Cosmetics and Hair Care
- Hair Perming: The primary use of thioglycolic acid is in permanent wave (perm) solutions, where it breaks disulfide bonds in hair keratin, allowing reshaping before oxidation reforms the bonds.
- Hair Removal Creams: Used in depilatory products to break down hair proteins for easy removal.
- Skin Care: Added to some formulations as an antioxidant or chelating agent.
- Industrial Applications
- Metal Treatment: As a rust inhibitor and cleaning agent for metals, especially in electroplating and metal finishing to remove oxides.
- Polymer Chemistry: Used as a chain transfer agent in polymer synthesis (e.g., in the production of PVC) to control molecular weight.
- Rubber Industry: Functions as a plasticizer and accelerator in rubber processing.
- Chemical Synthesis
- Intermediate: A key building block for synthesizing pharmaceuticals (e.g., thioglycolate salts for anti-inflammatory drugs), pesticides, and dyes.
- Chelating Agent: In analytical chemistry, for metal ion detection and separation.
- Other Fields
- Photography: Used in developing solutions as a reducing agent.
- Textiles: Applied in fabric processing for desizing and bleaching.
Safety Considerations
- Toxicity: Highly corrosive to skin and eyes; inhalation or ingestion can cause irritation and health risks.
- Storage: Should be stored in airtight containers away from oxidizing agents and heat, as it readily oxidizes in air.
Product Parameters
Packaging & Shipping
Liquid products |
Drum of 5kg ,10 kg ,25 kg ,50 kg 200 kg ,250 kg . 1000 kg IBC drum. TANK with 20 tons ,25 tons . |
Solid products |
Bag of 1 kg ,2 kg ,5 kg ,25 kg ,500kg ,1000 kg . Drum of 25 kg and 50 kg. |
Packaging can be customized according to customer requirements.
Company Profile
Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.



Our Advantages