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Cas Database

1000-05-1

1000-05-1

Identification

  • Product Name:Tetrasiloxane,1,1,3,3,5,5,7,7-octamethyl-

  • CAS Number: 1000-05-1

  • EINECS:213-669-0

  • Molecular Weight:282.635

  • Molecular Formula:C8H26O3Si4

  • HS Code:2934999090

  • Mol File:1000-05-1.mol

Synonyms:1,1,3,3,5,5,7,7-Octamethyltetrasiloxane;Octamethyltetrasiloxane;Tetrasiloxane, 1,1,3,3,5,5,7,7-octamethyl-;

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Safety information and MSDS view more

  • Pictogram(s):Xi

  • Hazard Codes:Xi

  • Signal Word:Warning

  • Hazard Statement:H315 Causes skin irritationH319 Causes serious eye irritation H335 May cause respiratory irritation

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

  • Fire-fighting measures: Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

Supplier and reference price

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  • Manufacture/Brand:TCI Chemical
  • Product Description:1,1,3,3,5,5,7,7-Octamethyltetrasiloxane >92.0%(GC)
  • Packaging:25mL
  • Price:$ 177
  • Delivery:In stock
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  • Manufacture/Brand:TCI Chemical
  • Product Description:1,1,3,3,5,5,7,7-Octamethyltetrasiloxane >92.0%(GC)
  • Packaging:5mL
  • Price:$ 59
  • Delivery:In stock
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  • Manufacture/Brand:Arctom
  • Product Description:1,1,3,3,5,5,7,7-Octamethyltetrasiloxane ≥95%
  • Packaging:25ml
  • Price:$ 195
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  • Manufacture/Brand:AK Scientific
  • Product Description:1,1,3,3,5,5,7,7-Octamethyltetrasiloxane
  • Packaging:25ml
  • Price:$ 288
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  • Manufacture/Brand:AHH
  • Product Description:1,1,3,3,5,5,7,7-Octamethyltetrasiloxane 98%
  • Packaging:100g
  • Price:$ 588
  • Delivery:In stock
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Relevant articles and documentsAll total 7 Articles be found

PROCESS FOR MAKING SI-H FUNCTIONAL SILOXANE OLIGOMER

-

Page/Page column 8-10, (2008/06/13)

The present invention relates to a method of making a Si-H functional siloxane oligomer from the reaction between silicon hydride compounds and cyclic siloxane oligomer in the presence of a Lewis acid that is capable of interacting with the hydrogen of th

Hydrosilylation of Allyl Ethers in the Presence of Platinum(II) Immobilized on Polymethylene Sulfide

Il’ina, M. A.,de Vekki, D. A.

, p. 68 - 77 (2020/04/09)

The reactions of allyl ethyl, allyl butyl, allyl glycidyl, allyl benzyl, and allyl phenyl ethers with 1,1,3,3-tetra-methyldisiloxane in the presence of platinum(II) immobilized on polymethylene sulfide have been studied.

Effect of catalyst structure on the reaction of α-methylstyrene with 1,1,3,3-tetramethyldisiloxane

De Vekki,Skvortsov

body text, p. 762 - 777 (2009/09/26)

Reaction of α-methylstyrene with 1,1,3,3-tetramethyldisiloxane in the presence of the complexes of platinum(II), palladium(II) and rhodium(I) is explored. It is established that in the presence of platinum catalyst predominantly occurs hydrosilylation of α-methylstyrene leading to formation of β-adduct, on palladium catalysts proceeds reduction of α-methylstyrene, on rhodium catalysts both the processes take place. In the reaction mixture proceeds disproportion and dehydrocondensation of 1,1,3,3-tetramethyldisiloxane that leads to formation of long chain linear and cyclic siloxanes of general formula HMe2Si(OSiMe2) n H and (-OSiMe2-)m (n = 2-6, m = 3-7), respectively. Platinum catalysts promotes formation of linear siloxanes, while both rhodium and palladium catalysts afford linear and cyclic siloxanes as well. Structure of intermediate metallocomplexes is studied.

Copper-catalyzed formic acid synthesis from CO2 with hydrosilanes and H2O

Motokura, Ken,Kashiwame, Daiki,Miyaji, Akimitsu,Baba, Toshihide

experimental part, p. 2642 - 2645 (2012/08/13)

A copper-catalyzed formic acid synthesis from CO2 with hydrosilanes has been accomplished. The Cu(OAc)2?H 2O-1,2-bis(diphenylphosphino)benzene system is highly effective for the formic acid synthesis under 1 atm of CO2. The TON value approached 8100 in 6 h. The reaction pathway was revealed by in situ NMR analysis and isotopic experiments.

Composition for separating mixtures

-

Page/Page column 17, (2008/06/13)

Therefore, there is provided herein in one specific embodiment a composition comprising: a) at least one silicone surfactant, and where silicone of silicone surfactant (a) has the general structure of: [in-line-formulae]Ma1Mb2Dc1Dd2Te1Tf2Qg; [/in-line-formulae][in-line-formulae]and, [/in-line-formulae][in-line-formulae]2≦(a+b+c+d+e+f+g)≦100; and, [/in-line-formulae] b) a mixture comprising an aqueous phase, a solid filler phase and optionally an oil phase that is substantially insoluble in said aqueous phase.

Process route upstream and downstream products

Process route

dimethylmonochlorosilane
1066-35-9

dimethylmonochlorosilane

dimethylsilanediol
1066-42-8,31900-57-9

dimethylsilanediol

1,1,3,3-tetramethyldisilazane
15933-59-2

1,1,3,3-tetramethyldisilazane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

Conditions
ConditionsYield
Intoluene;
1,7-dichlorooctamethyltetrasiloxane
2474-02-4

1,7-dichlorooctamethyltetrasiloxane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

1,7-Dibutyloxy-octamethyl-tetrasiloxan
18547-28-9

1,7-Dibutyloxy-octamethyl-tetrasiloxan

Conditions
ConditionsYield
With+-; for 2h; Title compound not separated from byproducts; Ambient temperature;
1,7-dichlorooctamethyltetrasiloxane
2474-02-4

1,7-dichlorooctamethyltetrasiloxane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

1,7-Dibutyloxy-octamethyl-tetrasiloxan
18547-28-9

1,7-Dibutyloxy-octamethyl-tetrasiloxan

Conditions
ConditionsYield
With tetrahydrofuran; +-; for 2h; Title compound not separated from byproducts; Ambient temperature;
1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

Conditions
ConditionsYield
/BRN= 1764516/;
H<sub>2</sub>SiEt<sub>2</sub>
542-91-6

H2SiEt2

1,1,3,3-Tetramethyldisiloxane
3277-26-7

1,1,3,3-Tetramethyldisiloxane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane
995-83-5

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane
995-82-4

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane

C<sub>10</sub>H<sub>28</sub>O<sub>2</sub>Si<sub>3</sub>

C10H28O2Si3

Conditions
ConditionsYield
With nickel; at 20 ℃; Further byproducts given;
5%
1,1,3,3-Tetramethyldisiloxane
3277-26-7

1,1,3,3-Tetramethyldisiloxane

octamethylcyclotetrasiloxane
556-67-2

octamethylcyclotetrasiloxane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate; for 24h;
1,1,3,3-Tetramethyldisiloxane
3277-26-7

1,1,3,3-Tetramethyldisiloxane

Hexamethylcyclotrisiloxane
541-05-9

Hexamethylcyclotrisiloxane

1,3,3,5,5-hexamethyltrisiloxane
1189-93-1

1,3,3,5,5-hexamethyltrisiloxane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane
995-83-5

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane
995-82-4

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane

Conditions
ConditionsYield
tris(pentafluorophenyl)borate;Indodecane; toluene;at 20 ℃; for 0.00583333h; Product distribution / selectivity;
1,1,3,3-Tetramethyldisiloxane
3277-26-7

1,1,3,3-Tetramethyldisiloxane

Hexamethylcyclotrisiloxane
541-05-9

Hexamethylcyclotrisiloxane

1,3,3,5,5-hexamethyltrisiloxane
1189-93-1

1,3,3,5,5-hexamethyltrisiloxane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

1,1,3,3,5,5,7,7,9,9,11,11,13,13-tetradecamethylheptasiloxane
19095-23-9

1,1,3,3,5,5,7,7,9,9,11,11,13,13-tetradecamethylheptasiloxane

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane
995-83-5

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane
995-82-4

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane

Conditions
ConditionsYield
tris(pentafluorophenyl)borate;Indodecane; toluene;at 20 ℃; for 0.0213889h; Product distribution / selectivity;
1,1,3,3-Tetramethyldisiloxane
3277-26-7

1,1,3,3-Tetramethyldisiloxane

Hexamethylcyclotrisiloxane
541-05-9

Hexamethylcyclotrisiloxane

1,3,3,5,5-hexamethyltrisiloxane
1189-93-1

1,3,3,5,5-hexamethyltrisiloxane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

1,1,3,3,5,5,7,7,9,9,11,11,13,13-tetradecamethylheptasiloxane
19095-23-9

1,1,3,3,5,5,7,7,9,9,11,11,13,13-tetradecamethylheptasiloxane

octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl
19095-24-0

octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane
995-83-5

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane
995-82-4

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane

Conditions
ConditionsYield
tris(pentafluorophenyl)borate;Indodecane; toluene;at 20 ℃; for 0.0444444 - 13.8889h; Product distribution / selectivity;
1,1,3,3-Tetramethyldisiloxane
3277-26-7

1,1,3,3-Tetramethyldisiloxane

Hexamethylcyclotrisiloxane
541-05-9

Hexamethylcyclotrisiloxane

1,3,3,5,5-hexamethyltrisiloxane
1189-93-1

1,3,3,5,5-hexamethyltrisiloxane

1,1,3,3,5,5,7,7-octamethyltetrasiloxane
1000-05-1

1,1,3,3,5,5,7,7-octamethyltetrasiloxane

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane
995-83-5

1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxane

Conditions
ConditionsYield
tris(pentafluorophenyl)borate;Indodecane; toluene;at 20 ℃; for 0.00722222 - 1.72222h; Product distribution / selectivity;

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