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Polydimethylsiloxane CAS 9016-00-6

Molecular Formula: C5H6Si

Formula Weight: 94.18664

ZSpharmac: Polydimethylsiloxane Supplier

Product Name: Polydimethylsiloxane
CAS No: 9016-00-6
Purity: 99%

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Basic Info

Product Name:Polydimethylsiloxane
Other Names:Poly(dimethylsiloxane)
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Colorless Viscous Liquid
EINECS No.:618-493-1
Provide:Polydimethylsiloxane MSDS;
Polydimethylsiloxane COA

What is Polydimethylsiloxane?

Polydimethylsiloxane (PDMS anemic and also transparent thick fluid. It has physiological inertness, excellent chemical security, electric and weather resistance, wide thickness array, low freezing point, high flash point, great hydrophobicity, and also high shear resistance., can be made use of for a long period of time at the temperature of 50 ~ 180 ℃. It is used as a defoaming agent, lube, mold and mildew launch representative, as well as is extensively used in chemical, fabric, printing and dyeing, papermaking and also other markets. Polydimethylsiloxane (PDMS) has great It has the attributes of biocompatibility, thermal stability as well as non-toxicity, as well as is typically used in the prep work of microfluidic chips as well as the manufacturing of space cell culture chips.

At the same time, Polydimethylsiloxane has good permeability as well as is an excellent carrier product for various chemical biosensors. However, the high viscosity and low surface energy of PDMS make large-scale production of uniform Polydimethylsiloxane particles difficult to achieve. At present, PDMS microparticles can be prepared by microfluidic technology. Polydimethylsiloxane microparticles with a size of about 500 μm are prepared by microfluidic method. Micro-scale PDMS particles were prepared by microfluidic method, but the surface was rough. Although the particle size of PDMS particles prepared by microfluidics is controllable, the efficiency is low and the surface quality is poor, which limits the application of the particles.

Polydimethylsiloxane Property

Melting point -35°C
Boiling point 155-220°C
density 0.971
vapor pressure 5 mm Hg ( 20 °C)
refractive index 1.4035
Fp 63°C
storage temp. Refrigerator
solubility Chloroform (Slightly), Methanol (Slightly)
form Viscous Liquid
Specific Gravity0.918
color Colorless
Water Solubility INSOLUBLE


Application of Polydimethylsiloxane

Food: Polydimethylsiloxane (Polydimethylsiloxane) is often used as a defoamer or glazing agent in food processing, and the allowable amount is generally 0.01-0.2 g/kg. Residues of polydimethylsiloxane in the human body can cause health hazards. my country’s “Hygienic Standard for the Use of Food Additives” (GB2760 2007) stipulates that the maximum use amount of “polydimethylsiloxane” in edible oils and fats is 10mg/kg, and the maximum use amount in meat products is 0.2g/kg.

Material: Polydimethylsiloxane is an elastic polymer, usually it is thermally polymerized by PDMS matrix and corresponding curing agent in a certain proportion.

As a base material for building microfluidic chips, Polydimethylsiloxane exhibits very ideal material properties: good insulation, can withstand high voltage, and has been widely used in the fabrication of various capillary electrophoresis microchips; high thermal stability, suitable for processing Various biochemical reaction chips have high biocompatibility and gas permeability, and can be used for cell culture; at the same time, they have excellent optical properties and can be used in various optical detection systems; low elastic modulus, suitable for production Microfluidic control devices, such as capillary electrophoresis chips, micropumps, etc.

Polydimethylsiloxane can transmit ultraviolet and visible light above 300nm, and has the characteristics of non-toxicity, easy fabrication of microchannel replication by casting method, and low chip cost. It is a polymer material used more in microfluidic analysis chip preparation. In addition, Polydimethylsiloxane has the following advantages: cheap raw materials, short production cycle, good durability, flexible packaging methods, and can form a good seal with many materials such as silicon, silicon nitride, silicon oxide, glass, etc.

Detection of Polydimethylsiloxane

The detection method of polydimethylsiloxane comprises the following specific steps:

(1) Weigh a certain amount of sample, add organic solvent, extract dimethyl silicone oil by ultrasonic vibration, concentrate the extract, and then put it on a silica gel column, first rinse with eluent to remove grease impurities, discard the eluent, and then use The dimethyl silicone oil is eluted by deliquoring, the eluate is collected, and after concentration, the sample solution is obtained;

(2) Take the polydimethylsiloxane standard solution with a concentration of 10-500 mg/L and the sample solution prepared in step (1), and perform fragmentation chromatography/mass spectrometry analysis; record their total ion currents by mass spectrometry full scan Chromatogram (TIC), the main characteristic component of polydimethylsiloxane cleavage product is hexamethylcyclotrisiloxane. Take m/z 207, 191, 177, 133 as the characteristic ions of mass spectrum for the determination of hexamethylcyclotrisiloxane.

(3) Using hexamethylcyclotrisiloxane, the component with the highest content in the pyrolysis product, as the indicator component for the qualitative detection of polydimethylsiloxane, extracting ion chromatography was performed on the total ion chromatograms of the standard solution and the sample solution, respectively. Figure (EIC), check whether there is a peak at the position of hexamethylcyclotrisiloxane (whether the retention time is the same) in the EIC diagram of the corresponding standard product in the EIC diagram of the sample, which proves that the sample contains polydimethylsiloxane.

(4) The hexamethylcyclotrisiloxane in the cleavage product was used as the indicator component for the quantitative detection of polydimethylsiloxane, and m/z 207 was used as the quantitative ion of hexamethylcyclotrisiloxane, respectively. Extracted ion diagram (EIC) was made for the TIC diagram of the standard and the sample, and the content of polydimethylsiloxane was calculated by the external standard method according to the peak area ratio of the standard and the sample m/z 207.

The Role of Polydimethylsiloxane in Cosmetics

Polydimethylsiloxane has good lubricating residential properties, and can develop an uniform water resistant protective film after layer the skin, but it does not have any kind of sticky as well as greasy feeling, as well as has good gloss.

Great anti-ultraviolet radiation efficiency: it will not oxidize as well as deteriorate under ultraviolet rays and create skin irritation.

Good antistatic performance: Tests show that the static electricity of the skin that has been wiped with the polysiloxane-containing skin cream is completely eliminated, and there is an obvious dustproof effect.

Good breathability: Even if a silicone film is formed on the skin, it does not affect the discharge of sweat.

It has a slow release and fixed fragrance effect on flavors and fragrances, so it has a long shelf life and high stability, is chemically inert, and has no adverse effects on other components of cosmetics, especially active ingredients, and has good matching.

It is non-toxic, odorless, tasteless, does not cause irritation and allergy to the skin, is highly safe, and has a certain curative effect on certain skin diseases, such as dyshidrosis eczema, neurodermatitis and occupational dermatitis.

About Products:
If you need Polydimethylsiloxane, a cosmetic raw material, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced Polydimethylsiloxane manufacturer and supplier, ZSpharmac will provide Polydimethylsiloxane raw materials to customers all over the world for a long time.
Over the years, the company has been adhering to the spirit of “integrity management, strict quality control, and customer first”, and has won unanimous praise from domestic and foreign customers.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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