Cosmetic Raw Material Silk Powder CAS 9009-99-8 Silk Fibroin Powder

• CAS No.: 9009-99-8
• Formula: C6h8o7
• EINECS: /
• Color: White
• Appearance: Powder
• Grade: Cosmetic
• Model NO.: py0891
• MOQ: 1kg
• Package: Carton
• Shipping: FedEx
• Transport Package: 25kg/Drum
• Specification: 650 nm; 2μ m; 5μ m; 10μ m; 40μ m
• Trademark: puya
• Origin: China
• Production Capacity: 20ton/Year

Product Description

 CAS 9009-99-8 Silk Fibroin Powder
Silk powder (silk fibroin powder) is a kind of macromolecular silk fibrin in powder form, which is made from the silk fibrin degummed under high pressure, requires special craft processing and smash through physical methods. Its molecular weight of is about 250000. It is tasteless, odorless, slightly soluble in water and insoluble in alcohol ether.

Sources of raw materials
Silk Cocoon

Product Identification
Trade Name: Silk Powder
Composition: Fibroin
CAS No.: 9009-99-8
INCI Name:SILK POWDER

Specification
Description:

Items	Specification
Coarse silk powder	Average particle size: 40 micron
Superfine Silk Powder	Average particle size: 10 Microns
Superfine Silk Powder	Mean particle diameter: 5 micrometers
Ultrafine and ultra-micro silk powder	Mean particle diameter: 2 micrometers

 Key indicators:

Items	Indicators
Characters	White or slight grayish yellow powders
Total Nitrogen (%)	≥14.5
Weight loss on drying (%)	≤6.0
Residue on ignition (%)	≤4.0
PH value	5.0-7.0

Function
It is a kind of powdery high molecular protein with a molecular of 100,000, which is no taste, no smell, and is micro-dissolved in water, but not in ethanol. For making silk cosmetics, the fineness of silk powder is generally between 1-100?/span>, if the grain size is too big, the smoothness of silk powder shall be poor, and give people the feeling of crude, but it would spoil the structure of natural silk material if the grain size is too fine. Since the surface gloss of silk is caused by the light interference effect on the silk surface, the fineness should be treated properly during the production process for silk powder, so as to keep the best standards of fineness, as well as the unique natural luster of it.