Certificate of Analysis-COA
Item | Specification |
Content | ≥50, 60, 70% |
Specific gravity | 1.24 (25 °C) |
pH Value | 6.0-7.0 (25 °C) |
Applications
1. Cold Wave And Hair Straightening Systems serves as the reducing agent in perming and relaxing formulas, cleaving cystine disulfide bonds in keratin so the fiber can be reshaped into a new curl or straight profile before the neutralizing step locks it in place.
2. Depilatory And Hair Removal Creams reacts quickly with keratin at the hair root, which suits short contact time creams and gels applied to skin and rinsed off, and the water soluble salt lets formulators build both clear and opaque systems.
3. Tannery Unhairing And Liming dissolves hair and hair roots while leaving the collagen structure beneath intact, so beamhouse teams can cut sodium sulfide loading, lower sulfide and BOD levels in tannery wastewater and reduce sludge handling cost.
4. Oilfield Acidizing And Iron Control acts as an iron sequestrant in acid treatment fluids, converting ferric iron into soluble ferrous form so iron hydroxide stays out of the formation and off wellbore equipment during matrix acidizing jobs.
5. Precision Metal Finishing And Surface Cleaning the mercapto group binds transition metals, lifting micro scale iron filings and surface oxides into an aqueous cleaner that stays mild on painted panels and sensitive alloys.
6. Permanent Hair Color And Cosmetic Formulation functions as an oxidation stabilizer in permanent dye systems, and iron content is controlled to the limit agreed in your specification, since trace iron reacts with thioglycolate to form a pink violet complex.
Production Line
We operate 10+ production lines, backed by a well-stocked raw material warehouse.
Our workshop is equipped with automated machinery — ensuring high consistency and precision on every order, from trial samples to full container loads.
Every order follows a standardized workflow. Key quality control points are set at every stage.
Factory Area
Standardized Process Flow
Production Capacity
Located in Shandong, our factory is approximately 300km from Qingdao Port, enabling fast and cost-effective delivery to customers worldwide.