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ChemicalBook >> CAS DataBase List >>Dimethicone

Dimethicone

CAS No.
9006-65-9
Chemical Name:
Dimethicone
Synonyms
SILICONE FLUID;dimeticone;POLYMETHYLSILOXANE;DIMETHICONE 350;DIMETHYL SILICONE;POLYDIMETHYLSILOXAN;Polysilane;Dimeticone CRS;VISCOSITY STANDARD;Food defoaming agent
CBNumber:
CB0696472
Molecular Formula:
C6H18OSi2
Molecular Weight:
162.37752
MDL Number:
MFCD02321983
MOL File:
9006-65-9.mol
MSDS File:
SDS
Last updated:2024-12-18 13:37:16

Dimethicone Properties

Density 1 g/mL at 20 °C
vapor pressure 5 mm Hg ( 20 °C)
refractive index n20/D 1.406
Flash point 121 °C
storage temp. Refrigerator
solubility Practically insoluble in water, very slightly soluble or practically insoluble in anhydrous ethanol, miscible with ethyl acetate, with methyl ethyl ketone and with toluene.
color Colourless
Stability Stable. Combustible. Incompatible with strong oxidizing agents, reducing agents, organics, acids, alkalis. Corrodes many metals.
InChI InChI=1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3
InChIKey UQEAIHBTYFGYIE-UHFFFAOYSA-N
SMILES O([Si](C)(C)C)[Si](C)(C)C
LogP 3.646 (est)
CAS DataBase Reference 9006-65-9
EWG's Food Scores 1-3
FDA UNII DIMETHICONE 350 (2Y53S6ATLU)
DIMETHICONE 500 (5L1VVC3K8O)
DIMETHICONE (92RU3N3Y1O)
DIMETHICONE 12500 (D1R3R4B8M8)
DIMETHICONE 20 (H8YMB5QY0D)
ATC code P03AX05
EPA Substance Registry System Dimethicone (9006-65-9)
Cosmetics Info Dimethicone

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H319
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  24/25-26
WGK Germany  3
RTECS  TQ2690000
Hazardous Substances Data 9006-65-9(Hazardous Substances Data)

Dimethicone price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D2200000 Dimeticone European Pharmacopoeia (EP) Reference Standard 9006-65-9 d2200000 $220 2024-03-01 Buy
TRC D460940 Dimethicone 9006-65-9 1g $95 2021-12-16 Buy
TRC D460940 Dimethicone 9006-65-9 100g $340 2021-12-16 Buy
Biosynth Carbosynth FD34801 Dimethicone - 90% 9006-65-9 25g $350 2021-12-16 Buy
Biosynth Carbosynth FD34801 Dimethicone - 90% 9006-65-9 50g $450 2021-12-16 Buy
Product number Packaging Price Buy
D2200000 d2200000 $220 Buy
D460940 1g $95 Buy
D460940 100g $340 Buy
FD34801 25g $350 Buy
FD34801 50g $450 Buy

Dimethicone Chemical Properties,Uses,Production

Physical and chemical properties

Dimethyl silicone is also known as methyl silicone oil and polydimethylsiloxane liquid. It appears as colorless transparent viscous liquid, being tasteless, odorless and non-toxic. The molecular formula is CH3 [Si (cH3) 2] nSi (CH3) 3. The average molecular weight is 5000 ~ 100000. Based on the differences on the molecular weight, kinematic viscosity varies from 1.0 × 10-6 ~ 100000 × 10-6 square meters / second. Long-term use temperature range is -50 ~ 180 ℃. In isolated air or inert gas, it can be subject to long-term use at 200 ℃. Viscosity coefficient: 0.31 ~ 0.61. Surface tension: 1.59 ~ 2.15 × 10-4N / cm. Dielectric constant (23 ℃, 100Hz): 2.18 ~ 2.17. Volume resistivity (23 °C): 1.0 × 1014 to 1.0 × 1016Ωcm3. Dielectric loss tangent (23 ℃, 100Hz):0.00002~0.00004. Breakdown voltage strength: 13.7 ~ 17.7kV / mm. It is soluble in benzene, toluene, xylene and ethyl ether, partially soluble in ethanol, butanol and acetone, insoluble in cyclohexanol, methanol, paraffin oil and vegetable oil. It has excellent hydrophobic moisture resistance, good light transmission, and chemical stability. Widely used in insulation, heat, moisture-proof filler, defoamer, mold release agent, lubricant and surface treatment agent. It is produced by the reaction between octamethylcyclotetrasiloxane and hexamethyldisiloxane in the presence of concentrated sulfuric acid or tetramethylammonium hydroxide catalyst.
Dimethicone

Toxicity

It has no obvious acute and chronic poisoning reaction to human beings and mammals, nor be mutagenic and carcinogenic. Oral, inhalation and skin contact have no obvious irritation or allergic reaction to the eyes, skin, and can’t be absorbed by the gastrointestinal tract and skin.

Chemical Properties

colourless to slightly yellow liquid

Chemical Properties

Dimethicones are clear, colorless liquids available in various viscosities. Dimethicone is a fluid mixture of fully methylated linear siloxane polymers end-blocked with trimethylsiloxy units. Methicone is a linear monomethyl polysiloxane. Dimethicone are safe as used in cosmetic formulations, vulcanization.

Uses

dimethicone is a form of silicone used to give products lubricity, slip, and good feel. It can also serve as a formulation defoamer and help reduce the feeling of greasiness that some creams leave on the skin immediately upon application. In addition, dimethicone is reported to protect the skin against moisture loss when used in larger quantities. It improves product flow and spreadability. In combination with other ingredients, dimethicone becomes a good waterproofing material for sunscreen emulsions, and helps reduce the greasiness often seen in high-SPF preparations.

Uses

A silicone oil consisting of a mixture of fully methylated linear siloxane polymers end-blocking with trimethylsiloxy units. Commonly used in skin and hair products.

Definition

ChEBI: A polydimethylsiloxane macromolecule, composed of dimethylsiloxane repeating units.

Production Methods

Dimethicone isapoly (dimethylsiloxane) obtained by hydrolysis and polycondensation of dichlorodimethylsilane and chlorotrimethylsilane. The hydrolysis products contain active silanol groups through which condensation polymerization proceeds. By varying the proportions of chlorotrimethylsilane, which acts as a chain terminator, silicones of varying molecular weight may be prepared. Different grades of dimethicone are produced that may be distinguished by a number placed after the name indicating the nominal viscosity. For example, ABIL 20 (Evonik Goldschmidt UK Ltd) has a nominal kinematic viscosity of 18–22mm2/s (18–22cSt).

Indications

Silicone (dimethicone) ointments are excellent water-protective agents because they have an extremely low surface tension and penetrate crevices in the skin to form a plastic-like barrier. Further, they are nontoxic, inert, stable, and water repellent. As such, they are useful as barrier creams in industry or wherever constant or frequent exposure to aqueous compounds is a problem. They will not, however, protect well against solvents, oils, or dusts.

brand name

Sentry Dimethicone (Witco); Sentry Dimethicone Dispension (Witco).

Pharmaceutical Applications

Dimethicones of various viscosities are widely used in cosmetic and pharmaceutical formulations. In topical oil-in-water emulsions dimethicone is added to the oil phase as an antifoaming agent. Dimethicone is hydrophobic and is also widely used in topical barrier preparations. Therapeutically, dimethicone may be used with simethicone in oral pharmaceutical formulations used in the treatment of flatulence. Dimethicone is also used to form a waterrepellent film on glass containers.

Safety

Dimethicone is generally regarded as a relatively nontoxic and nonirritant material although it can cause temporary irritation to the eyes. In pharmaceutical formulations it may be used in oral and topical preparations. Dimethicones are also used extensively in cosmetic formulations and in certain food applications.
The WHO has set a tentative estimated acceptable daily intake of dimethicone with a relative molecular mass in the range of 200–300 at up to 1.5mg/kg body-weight.
Injection of silicones into tissues may cause granulomatous reactions. Accidental intravascular injection has been associated with fatalities.

storage

Dimethicones should be stored in an airtight container in a cool, dry, place; they are stable to heat and are resistant to most chemical substances although they are affected by strong acids. Thin films of dimethicone may be sterilized by dry heat for at least 2 hours at 160°C. Sterilization of large quantities of dimethicone by steam autoclaving is notrecommended since excesswater diffuses intothe fluid causing it to become hazy. However, thin films may be sterilized by this method. Gamma irradiation may also be used to sterilize dimethicone. Gamma irradiation can, however, cause crosslinking with a consequent increase in the viscosity of fluids.

Regulatory Status

Accepted for use as a food additive in Europe. Included in the FDA Inactive Ingredients Database (oral capsules and tablets, topical creams,emulsions,lotions,and transdermal preparations).Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

Global( 332)Suppliers
Supplier Tel Email Country ProdList Advantage
Jiangxi Alpha Hi-tech Pharmaceutical Co., Ltd
510-85010237 overseamarketing@alphahi-tech.com CHINA 41 58
ChemFine International Co.,Ltd.
+86-510-82753588 +86-13806194144 info@chemfineinternational.com China 300 58
Hebei Weibang Biotechnology Co., Ltd 		+8615531157085 abby@weibangbio.com China 8810 58
Hebei Chuanghai Biotechnology Co,.LTD 		+86-13131129325 sales1@chuanghaibio.com China 5889 58
Hebei Weibang Biotechnology Co., Ltd 		+8617732866630 bess@weibangbio.com China 18151 58
Hebei Kingfiner Technology Development Co.Ltd 		+86-15532196582 +86-15373005021 lisa@kingfinertech.com China 3010 58
Hangzhou ICH Biofarm Co., Ltd 		+86-0571-28186870; +undefined8613073685410 sales@ichemie.com China 1001 58
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20284 58
Hebei Saisier Technology Co., LTD 		+86-18400010335 +86-18034520335 admin@hbsaisier.cn China 1015 58
Shaanxi TNJONE Pharmaceutical Co., Ltd 		+8618092446649 sarah@tnjone.com China 1143 58

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View Lastest Price from Dimethicone manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Dimethicone pictures 2024-12-22 Dimethicone
9006-65-9
 US $100.00-75.00 / kg 1kg 99% 5000Ton HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Dimethicone pictures 2024-12-20 Dimethicone
9006-65-9
 US $65.00-50.00 / kg 5kg 0.99 20MT Watson Biotechnology Co.,Ltd
Dimethicone pictures 2024-12-20 Dimethicone
9006-65-9
 US $6.00 / kg 1kg 99% 2000KG/Month HebeiShuoshengImportandExportco.,Ltd
  • Dimethicone pictures
  • Dimethicone
    9006-65-9
  • US $100.00-75.00 / kg
  • 99%
  • HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
  • Dimethicone pictures
  • Dimethicone
    9006-65-9
  • US $65.00-50.00 / kg
  • 0.99
  • Watson Biotechnology Co.,Ltd
  • Dimethicone pictures
  • Dimethicone
    9006-65-9
  • US $6.00 / kg
  • 99%
  • HebeiShuoshengImportandExportco.,Ltd
SILCOREL(R) ADP1000 ANTIFOAM COMPOUND SILICONE OIL DC 200 REDUCED VOLATILITY POLYDIMETHYLSILOXANE POLYDIMETHYLSILOXANE 158'000 POLYDIMETHYLSILOXANE 16'000 POLYDIMETHYLSILOXANE 173'000 POLYDIMETHYLSILOXANE 1'850 POLYDIMETHYLSILOXANE 197'000 POLYDIMETHYLSILOXANE 25'800 POLYDIMETHYLSILOXANE 303'000 POLYDIMETHYLSILOXANE 311 POLYDIMETHYLSILOXANE 3'320 POLYDIMETHYLSILOXANE 47'500 POLYDIMETHYLSILOXANE 7'100 POLYDIMETHYLSILOXANE 71'000 POLYDIMETHYLSILOXANE 89'800 POLYDIMETHYLSILOXANE, BRANCHED, METHYL TERMINATED POLYDIMETHYLSILOXANE GUM POLY(DIMETHYLSILOXANE), METHYL TERMINATED dimethicone macromolecule Belsil DM 100 Belsil DM 1000 Belsil DM 200 Belsil DM 35 Clearocast 100 DC 100-350CS DC 1428 DC 200-100cS DC 200-10cS DC 5-2117 DiMethicone 245 Dow Corning 100-350CS Dow Corning 1413 Dow Corning 1664 Dow Corning 200 Fluid 350 c/s Dow Corning 200 Fluid 5cSt Dow Corning 200/100 cSt Fluid Dow Corning 200/10CST Dow Corning 200/5 cst Dow Corning 365 Dow Corning 365 DiMethicone NF EMulsion Dow Corning 5-2117 Dow Corning 5-7137 Dow Corning 5-7139 E 1049 EY 22-067 Hedrin HL 88 HL 999 KF 96A50CS KHS 7 KM 9 Silicone Fluid, High TeMperature Heat Transfer Fluid DIMETHYLPOLYSILOXANE,TECHNICAL DIMETIKON (Methoxy-dimethylsilyl)-trimethylsilane DC 1664 Dow Corning- 664