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Natural Silk Fibroin Powder Silk Protein Powder for Hair Care

China Natural Silk Fibroin Powder Silk Protein Powder for Hair Care, Find details about China Protein Powder, Food from Natural Silk Fibroin Powder Silk Protein Powder for Hair Care

Port: Qingdao, China
Production Capacity: 40000tons/Per Year
Payment Terms: L/C, Western Union, Money Gram
Transport Package: Bag
Specification: 25kg/bag
Origin: China
 
Product Description
Methyl paraben, also known as methyl paraben or methyl paraben, is an organic substance with the chemical formula C8H8O3, white crystalline powder or colorless crystal, easily soluble in alcohol, ether and acetone, very slightly soluble Water, boiling point 270-280°C. Mainly used as antiseptic preservative for organic synthesis, food, cosmetics, medicine, and also used as feed preservative. Because of its phenolic hydroxyl structure, it has stronger antibacterial properties than benzoic acid and sorbic acid. Its mechanism of action is: destroying the cell membrane of microorganisms, denaturing the proteins in the cells, and inhibiting the activities of the respiratory enzymes and electron transfer enzymes of the microorganism cells.Natural Silk Fibroin Powder Silk Protein Powder for Hair Care
 
Overview
 
 
TEST ITEMSSPEFICAITIONSRESULTS
AppearanceWhite Crystalline PowderWhite Crystalline Powder
Assay(on dry base)98.0% -102.0%99.92%
Melting Point125-128ºC127.3ºC
Acidity<0.10.02
Loss on Drying0.5% Max.0.13%
Sulfate(based on SO42- )0.024% Max.<0.024%
Residue on Ignition0.1% Max0.030%
IdentificationPassedPassed

Related Substances		PHBA≤0.50%0.03%
Other single impurities ≤0.50%0.001%
Total impurities ≤1.0%0.05%
Color of SolutionPassedPassed
Residual solvents≤1000ppm<200ppm



 
Application

Natural Silk Fibroin Powder Silk Protein Powder for Hair Care


Cosmetic preservatives. It is a phenolic preservative. It is effective against various molds, yeasts and bacteria, but the bactericidal power of paraben is low. It is usually mixed with ethyl paraben and has good addition and synergy. Adding amount is 0.1%~1.0%. The antiseptic activity is related to the pH value of the solution. When the pH value is 7, its activity is 2/3 of the original activity; if the pH value is 8.5, it is reduced to half of the original activity. It will be bound by some high-molecular compounds such as methyl cellulose, gelatin protein, etc. and lose its preservative activity.
In the pharmaceutical industry, it is used as an antiseptic and bactericide for medicaments, and also as a corrosion protection additive for organic synthesis and food, spices, and films. Similar products, ethyl paraben (paraben B) and propyl paraben (paraben C) produced by similar production methods are also disinfectants and antiseptics. The product is irritating to the skin.

Packaging & Shipping

 

Methylparaben Methyl Paraben CAS 99-76-3Our company's main products are plastic particles, including PP , LDPE , LLDPE , PC , PV , PET , HDPE ,PET , PS , EVA and so on. We have many years of production and sales history. Our service aim is to serve customers and win the market with quality.
Our products are produced on the basis of best technical team, advanced equipment, high qualified management which meet the requirements of security and environmental protection. We earned customer trust and created a good reputation during these years.
We will provide the most comprehensive products and service to you ! We are looking forward to your cooperation!

FAQ

 

Q1: Are you a manufacturer or trading company?

Re: We are one company integrated industry and trade. No matter the products we manufacture or trade, high quality products and competitive price always will be provided for you.

Q2: May I get one sample before placing order?
Re: Yes, we'd like to provide sample for you. free samples(max 1Kg) are available, but freight cost will be born by customers.

Q3: Which payment is available for your company?
Re: In order to prompt our cooperation, there are some payment methods for your choice. T/T(USD), Western union, Paypal, Credit card, Alipay or Alibaba trade insurance all is ok. You can choose the one which is convenient for you.

Q4: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, T/T, EMS, etc.) or by air. Usually it will cost 2-5 days that you can get the goods after delivery.
For large quantity products, shipment is better. It will cost days to weeks to come to your destination port, which depends on where the port is.

Q5: Is there any possible to use my appointed label or package?
Re: Sure. If needed, we'd like to use label or package according to your requirement.

Q6: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are high qualified. If the goods can't come to the quality we promise, you can ask for refund

 

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