Zinc Pyrithione Cosmetic Grade Scalp Care Functional Raw Material（CAS 13463-41-7）
Common Name: Zinc Pyrithione
Abbreviation: ZPT
Alias: Zinc Bis(2-pyridylthio) Oxide
INCI Name: Zinc Pyrithione
CAS Number: 13463-41-7
EINECS Number: 236-671-3
Molecular Formula: C₁₀H₈N₂O₂S₂Zn
Molecular Weight: 317.69
Standard Cosmetic Grade Purity: ≥98.0%
Appearance: Off-white fine crystalline powder, slight characteristic sulfur odor
Particle Size: 80 mesh / 1250 mesh optional fineness
Melting Point: 240℃-260℃
Density: 1.78g/cm³ (20℃)
Solubility: Insoluble in water, ethanol and common cosmetic oil solvents, stable dispersion in surfactant aqueous system
Packaging: 25KG food-grade aluminum foil sealed bag
Storage Condition: Sealed storage, cool dark ventilated warehouse, avoid strong light, high temperature and strong acid & alkaline substances
Shelf Life: 24 months unopened under standard storage
Core Application: Scalp flora balancing additive, scalp surface conditioning agent, long-lasting fresh hair additive, daily rinse-off hair care functional raw material, formula mildew inhibitor.
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Zinc Pyrithione Cosmetic Grade Scalp Care Functional Raw Material（CAS 13463-41-7）
Zinc Pyrithione (ZPT, CAS 13463-41-7) is a synthetic heterocyclic zinc compound cosmetic functional powder. It owns excellent surface activity and flora balancing performance, can regulate scalp surface microenvironment, reduce scalp flaking matter formation, retain scalp refreshing state. This cosmetic grade ZPT features high thermal stability, good surfactant dispersion, compatible with anionic, nonionic surfactant hair care systems. It follows global hair care ingredient dosage regulations, widely applied in daily shampoo, scalp conditioner and hair cleansing products, stably supplied for global hair care manufacturing enterprises.
Key Benefits
• Scalp microenvironment balance: Stabilize scalp surface flora, reduce scalp flaking
• High thermal stability: Keep stable property under conventional emulsifying temperature
• Good dispersion performance: Disperse evenly in surfactant aqueous system
• Long-lasting refreshing effect: Extend scalp and hair fresh period for daily care
• Wide formula compatibility: Matches most daily hair cleansing surfactant systems
Applications
• Daily Shampoo: Anti-flaking shampoo, oil-control refreshing shampoo
• Scalp Care: Scalp soothing conditioner, deep scalp cleansing lotion
• Professional Hair Care: Salon scalp care essence, customized hair treatment paste
• Daily Cleaning: Body cleansing wash with scalp & skin refreshing function
• Formula Protection: Water-based cosmetic raw material auxiliary mildew inhibitor
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result | Test Method |
Zinc Pyrithione Purity | ≥98.00% | 98.62% | Complexometric Zinc Titration |
Appearance | Off-white fine crystalline powder | Qualified | Visual & Olfactory Inspection |
Particle Fineness | ≥80 mesh, 98% pass | 80 mesh Passed | Standard Screen Screening |
Melting Point Range | 240.0℃ - 260.0℃ | 251.3℃ | Capillary Melting Detection |
Free Pyrithione Content | ≤0.30% | 0.18% | High Performance Liquid Chromatography |
Loss on Drying | ≤0.50% | 0.26% | Vacuum Drying Constant Weight Method |
Heavy Metal(Pb) | ≤1ppm | 0.09ppm | ICP-MS Test |
Water Suspension pH(1% suspension) | 6.0 - 7.5 | 6.7 | Digital pH Meter Detection |
Inspection Conclusion | Compliant with SCCS/REACH/FDA Hair Care Raw Standard | Passed | Factory Full Item Inspection |
Frequently Asked Questions (FAQ)
1. What dispersion temperature for shampoo production? Disperse uniformly at 60-70℃ surfactant system.
2. What max dosage for EU compliant shampoo? Maximum 1.5% addition for EU hair rinse products.
3. Can it compound with salicylic acid for scalp formula? It has synergistic scalp conditioning effect with salicylic acid.
4. Which particle size fits transparent shampoo? 1250 mesh ultra-fine ZPT for transparent shampoo.
5. How to extend powder storage cycle? Keep sealed and avoid long-term light exposure.
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