6231-68-1

Basic information

• Product Name: 1,2-BIS(PENTAMETHYLDISILOXANYL)ETHANE
• Synonyms: 1,2-BIS(PENTAMETHYLDISILOXANYL)ETHANE;1,2-Bis(1,1,3,3,3-Pentamethyldisiloxanyl)Ethane
• CAS NO: 6231-68-1
• Molecular Formula: C12H34O2Si4
• Molecular Weight: 322.74
• Mol File: 6231-68-1.mol
• Article Data: 7

Chemical Properties

• Melting Point: -52°C
• Boiling Point: 254-255°C
• Flash Point: 92°C (198°F)
• Appearance: /
• Refractive Index: 1.410
• CAS DataBase Reference: 1,2-BIS(PENTAMETHYLDISILOXANYL)ETHANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-BIS(PENTAMETHYLDISILOXANYL)ETHANE(6231-68-1)
• EPA Substance Registry System: 1,2-BIS(PENTAMETHYLDISILOXANYL)ETHANE(6231-68-1)

Safety Data

• Hazardous Substances Data: 6231-68-1(Hazardous Substances Data)

Usage

General Description

1,2-Bis(pentamethyldisiloxanyl)ethane, also known as pentamethyldisiloxane ethylene, is a chemical compound with the molecular formula C16H40O2Si4. It is a colorless liquid with a molecular weight of 392.82 g/mol. 1,2-BIS(PENTAMETHYLDISILOXANYL)ETHANE is commonly used as a crosslinking agent and as a modifier in the manufacturing of silicone polymers and resins. It is also used as a lubricant, release agent, and anti-foaming agent in various industrial applications. Additionally, 1,2-Bis(pentamethyldisiloxanyl)ethane is used as a key intermediate in the production of silicone-based chemicals and materials. 1,2-BIS(PENTAMETHYLDISILOXANYL)ETHANE is considered to be relatively low in toxicity and is generally regarded as safe for use in commercial and industrial settings.

Upstream product

• 1438-82-0 1,1,1,3,3-pentamethyl-1,3-disiloxane 
• 1438-79-5 1,1,3,3,3-pentamethyl-1-vinyldisiloxane 
• 74-86-2 acetylene 
• 107-46-0 Hexamethyldisiloxane 
• 13528-93-3 1,2-bis-(chlorodimethylsilyl)ethane 
• 76490-69-2 bis(dimethylmethoxysilyl)ethane 
• 75-77-4 chloro-trimethyl-silane 

Relevant articles and documents

HYDROSILYLATION IRON CATALYST

A hydrosilylation iron catalyst prepared from a two-electron ligand (L) and a mononuclear, binuclear, or trinuclear complex of iron indicated by formula (1), Fe having bonds with carbon atoms included in X and the total number of Fe-carbon bonds being 2-10. As a result of using iron, the hydrosilylation iron catalyst is advantageous from a cost perspective as well as being easily synthesized. Hydrosilylation reactions can be promoted under mild conditions by using this catalyst. [in-line-formulae]Fe(X)a??(1)[/in-line-formulae] (in the formula, each X independently indicates a C2-30 ligand that may include an unsaturated group excluding carbonyl groups (CO groups) and cyclopentadienyl groups, however at least one X includes an unsaturated group, a indicates an integer of 2-4 per Fe atom.)

Method for producing polyimidesiloxane

PROBLEM TO BE SOLVED: To provide a method for synthesizing siloxanes at will in good yield while maintaining high structural controllability, which can be applied to substrates having various substituents.SOLUTION: The method comprises reacting benzyloxysilanes and silicon halides in the absence of hydrogen using a catalyst comprising a transition metal or a compound thereof, preferably a metal of group 9 or group 10 of the periodic table or a compound thereof. Thereby, corresponding siloxanes can be produced safely and simply in high yield under a mild reaction condition accompanied by elimination of a benzyl halide. Especially, by using an active carbon-supported catalyst as a heterogeneous catalyst, the target siloxanes can be separated easily.

LINEAR AND CYCLIC SILOXANES AND COSMETIC COMPOSITIONS MADE THEREOF

The present invention relates to a novel organopolysiloxane having a specified structure and a cosmetic containing the aforementioned organopolysiloxane. The novel organopolysiloxane according to the present invention is volatile, possesses stability at low temperature, provides superior glossiness, and has a superior property with respect to miscibility with a UV- ray absorber, and which is useful as a replacement of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, or methyltrimethicone. The cosmetic according to the present invention can provide superior feeling to the touch during use and a superior outer appearance. Furthermore, a degree of freedom in blending various components such as UV-ray absorbers into the cosmetic according to the present invention is increased.