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Ammonium Thioglycolate CAS 5421-46-5 - Buy from China Suppliers & Factory for Quality Chemicals
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Chemical Name: Ammonium thioglycolate
CAS No.: 5421-46-5
Molecular Formula: C2H4O2S.H3N
Molecular Structure:
Molecular Weight: 109.15
Appearance: Colorless liquid
Sample: Free samples are available
Melting Point: 139-139.5 °C
Boiling Point: 115 °C (at 101 325 Pa)
Density: 1.22
Our Ammonium thioglycolate is a high-quality product manufactured in China. As leading suppliers and factory producers, we ensure that our chemical meets the highest industry standards. Whether you need samples or bulk orders, we are committed to providing exceptional service and reliable products.
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Typical Properties
| Item | Specifications |
| Appearance | Colorless or Lavender Pink |
| Purity | 50%; 60%; 70% |
| PH | 6.0–6.8 (25℃) |
| Specific Gravity (ρ20, g/cm³) | 1.24 (25℃) |
Ammonium Thioglycolate (also known as Ammonium Thioethanolate) is a highly efficient reducing thiol compound. Its core function is to cleave the disulfide bonds in keratin, making it a key raw material for cold wave perms, hair straightening, and depilatories. It is also utilized in fields such as metal corrosion inhibition and chemical analysis.
Product Advantages
- 1 Strong Reducing Power & Precision: Selectively cleaves disulfide bonds in hair keratin, delivering significant softening and reshaping effects.
- 2 Neutral & Mild: With a pH close to that of human skin and hair, it is less irritating than traditional thioglycolic acid and causes minimal damage to hair quality.
- 3 Excellent Water Solubility: Easy to formulate into various aqueous solutions and creams, offering good compatibility with different formulations.
- 4 Flexible Application: Action intensity can be adjusted via concentration and pH, making it suitable for diverse scenarios such as perming, hair straightening, and depilatory uses.
- 5 Multifunctionality: Beyond hair care, it serves as a metal corrosion inhibitor, chemical analysis reagent, and thiolating agent.
Application Areas
1
Hair Care Industry (Core Application)
- Cold Wave Lotions / Perm Solutions: Softens hair keratin and reshapes disulfide bonds to achieve permanent curling; serves as the core reducing agent in cold perms.
- Hair Straightening Creams / Relaxers: Cleaves disulfide bonds to soften hair, working in conjunction with neutralizers to achieve permanent straightening.
- Depilatory Creams / Lotions: Softens body hair keratin to facilitate easy removal; the preferred choice for mild depilatory products.
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Recommended Concentration: 5%–15% for perming/straightening; 2%–8% for depilatory use.
2
Industrial & Other Fields
- Metal Corrosion Inhibition: Forms a protective FeS film in high-temperature brine/completion fluids to inhibit carbon steel corrosion (140–200℃).
- Chemical Analysis: Used as a masking agent and reducing agent for the photometric determination of ions such as iron, aluminum, silver, and tin.
- Material Modification: Serves as a thiolating agent for the preparation of adsorption materials and functional polymers.
- Electronic Cleaning: Acts as an auxiliary agent for metal surface treatment and cleaning.
Package & Storage
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Package
25 kg/drum | 200 kg/drum
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Storage
Store in a cool, dry, and dark place, preferably refrigerated at 2–8℃. Avoid contact with iron/copper.
Frequently Asked Questions
Q What is Ammonium Thioglycolate used for in the cosmetic industry?
Ammonium Thioglycolate is primarily used as the active reducing agent in cold wave perm solutions, hair straightening creams, and depilatory products. It works by cleaving the disulfide bonds in hair keratin, allowing the hair to be reshaped or removed with minimal damage.
Q What concentrations of Ammonium Thioglycolate are available?
Ammonium Thioglycolate is available in three standard concentrations: 50%, 60%, and 70%. The appropriate concentration can be selected based on the specific formulation requirements of your product.
Q What is the recommended usage concentration for perm and depilatory applications?
For perming and hair straightening formulations, a concentration of 5%–15% is recommended. For depilatory creams and lotions, a lower concentration of 2%–8% is typically used to ensure a milder effect on the skin.
Q Is Ammonium Thioglycolate safe for use on hair and skin?
Yes, when used within recommended concentrations, Ammonium Thioglycolate is considered mild and safe. Its pH (6.0–6.8) is close to the natural pH of human skin and hair, making it less irritating than traditional thioglycolic acid and minimizing damage to hair quality.
Q How should Ammonium Thioglycolate be stored to maintain its quality?
It should be stored in a cool, dry, and dark environment, preferably refrigerated at 2–8℃. Direct contact with iron or copper containers should be avoided, as these metals can accelerate degradation of the product.
Q Can Ammonium Thioglycolate be used in industrial applications beyond hair care?
Yes. In addition to its core role in hair care, Ammonium Thioglycolate is used as a metal corrosion inhibitor in high-temperature brine and completion fluids (140–200℃), as a masking and reducing agent in chemical analysis, as a thiolating agent for material modification, and as an auxiliary agent in electronic metal surface cleaning.