Decamethylcyclopentasiloxane

Base Information

• Chemical Name: Decamethylcyclopentasiloxane
• CAS No.: 541-02-6
• Molecular Formula: C10H30O5 Si5
• Molecular Weight: 370.773
• Hs Code.: 29310095
• European Community (EC) Number: 208-764-9
• UNII: 0THT5PCI0R
• DSSTox Substance ID: DTXSID1027184
• Nikkaji Number: J120.964G
• Wikipedia: Decamethylcyclopentasiloxane
• Wikidata: Q414350
• RXCUI: 1305744
• Metabolomics Workbench ID: 125249
• ChEMBL ID: CHEMBL1885178
• Mol file: 541-02-6.mol

Synonyms:D5-sil;decamethylcyclopentasiloxane

Chemical Property of Decamethylcyclopentasiloxane

Chemical Property:

• Appearance/Colour: liquid
• Vapor Pressure: 0.285mmHg at 25°C
• Melting Point: -44 °C
• Refractive Index: n20/D 1.396(lit.)
• Boiling Point: 210 °C at 760 mmHg
• Flash Point: 95.6 °C
• PSA: 46.15000
• Density: 0.96 g/cm³
• LogP: 3.59200
• Storage Temp.: Store below +30°C.
• Solubility.: <0.0001g/l (calculated)
• Water Solubility.: Immiscible with water.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 5
• Rotatable Bond Count: 0
• Exact Mass: 370.09395673
• Heavy Atom Count: 20
• Complexity: 258

Purity/Quality:

≥99% ^*data from raw suppliers

D-5 ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38-53
• Safety Statements: 23-24/25-36-26

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metalloid Compounds (Silicon)
• Canonical SMILES: C[Si]1(O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C)C
• Uses: A cyclic volatile methylsiloxane (cVMS) used in cosmetic and personal care products. Used in dermal exposure and inhalation toxicity study. Intermediate in the manufacture of high mol wt siloxane polymers. Carrier ingredient in personal care products; dry cleaning solvent. cyclopentasiloxane is incorporated into a formulation for its emollient and solvent activity. Octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane are major industrial products, which are either marketed as such or used for the production of polydimethylsiloxanes.

Technology Process of Decamethylcyclopentasiloxane

There total 55 articles about Decamethylcyclopentasiloxane which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 42.0%

dimethylsilicon dichloride (75-78-5,30107-43-8) → tetradecamethylcycloheptasiloxane (107-50-6) + Hexamethylcyclotrisiloxane (541-05-9) + octamethylcyclotetrasiloxane (556-67-2) + decamethylcyclopentasiloxane (541-02-6) + dodecamethyl-cyclohexasiloxane (540-97-6)

Guidance literature:

With H₂O; In water; slow addn. of 4l (CH3)2SiCl2 to 12l H2O at 15-20°C withorous stirring; further products;; distn.;;

DOI:10.1021/ja01207a004

Reference yield: 35.0%

dimethylsilicon dichloride (75-78-5,30107-43-8) → Hexamethylcyclotrisiloxane (541-05-9) + octamethylcyclotetrasiloxane (556-67-2) + decamethylcyclopentasiloxane (541-02-6) + dodecamethyl-cyclohexasiloxane (540-97-6)

Guidance literature:

With dimethyl sulfoxide; at 0 ℃; Further byproducts given;

Reference yield: 26.0%

1,1,3,3-Tetramethyldisiloxane (3277-26-7) → tetradecamethylcycloheptasiloxane (107-50-6) + octamethylcyclotetrasiloxane (556-67-2) + decamethylcyclopentasiloxane (541-02-6) + dodecamethyl-cyclohexasiloxane (540-97-6)

Guidance literature:

With iodine; In dichloromethane; for 0.333333h; Further byproducts given; Heating;

upstream raw materials:

diethoxy dimethylsilane

dimethylsilicon dichloride

diiododimethylsilane

Hexamethylcyclotrisiloxane

Downstream raw materials:

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

4-Chloro-2-nitroaniline

iododimethylsilane

dodecamethyl-cyclohexasiloxane

Refernces

• 1、 Chojnowski, Julian,Rubinsztajn, Slawomir,Wilczek, Lech. "Unusual Competition of Intermolecular vs. Intramolecular Reactions. Kinetics of the Condensation of Decamethylpentasiloxane-1,9-diol". . p. 69 - 71. Retrieved 1984.
• 2、 Comas-Vives, Aleix,Eiler, Frederik,Grützmacher, Hansj?rg,Pribanic, Bruno,Trincado, Monica,Vogt, Matthias. "Hydrogenolysis of Polysilanes Catalyzed by Low-Valent Nickel Complexes". supporting information. p. 15603 - 15609. Retrieved 2020/04/29.