18001-97-3

Basic information

• Product Name: 1,3-BIS(3-HYDROXYPROPYL)TETRAMETHYLDISILOXANE
• Synonyms: 1,3-BIS(HYDROXYPROPYL)TETRAMETHYLDISILOXANE 95%;1,3-Di(3-Hydroxylpropyl)-1,1,3,3-Tetramethyl-Disiloxane;Dihydroxypropyltetramethyldisiloxane;1,3-Bis(3-hydroxypropyl)-1,1,3,3-tetramethylpropanedisiloxane;3,3'-(1,1,3,3-Tetramethylpropanedisiloxane-1,3-diyl)bis(1-propanol);3,3'-[Oxybis(dimethylsilanediyl)]bis(propane-1-ol);4,4,6,6-Tetramethyl-5-oxa-4,6-disila(nonane)-1,9-diol;1,3-Bis(3-ydroxypropyl)tetraMethyl Disiloxane
• CAS NO: 18001-97-3
• Molecular Formula: C₁₀H₂₆O₃Si₂
• Molecular Weight: 250.48
• EINECS: 241-916-2
• Product Categories: Siloxanes
• Mol File: 18001-97-3.mol
• Article Data: 9

Chemical Properties

• Melting Point: <0°C
• Boiling Point: 75 °C
• Flash Point: 45°C
• Appearance: /
• Density: 0.953
• Vapor Pressure: 0.0299mmHg at 25°C
• Refractive Index: 1.4472 [25°C]
• Storage Temp.: 2-8°C
• PKA: 14.89±0.10(Predicted)
• CAS DataBase Reference: 1,3-BIS(3-HYDROXYPROPYL)TETRAMETHYLDISILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-BIS(3-HYDROXYPROPYL)TETRAMETHYLDISILOXANE(18001-97-3)
• EPA Substance Registry System: 1,3-BIS(3-HYDROXYPROPYL)TETRAMETHYLDISILOXANE(18001-97-3)

Safety Data

• Statements: 10-36/37/38
• Safety Statements: 16-26-36/37/39
• RIDADR: 1993
• TSCA: No
• Hazardous Substances Data: 18001-97-3(Hazardous Substances Data)

Usage

Chemical Properties

Clear to straw liquid with mild odor

InChI:InChI=1/C10H26O3Si2/c1-14(2,9-5-7-11)13-15(3,4)10-6-8-12/h11-12H,5-10H2,1-4H3

Upstream product

• 3292-88-4 2,2-dimethyl-1-oxa-2-silacyclopentane 
• 17947-89-6 1,3-bis(3-acetoxypropyl)-1,1,3,3-tetramethyldisiloxane 
• 23483-20-7 allyloxydimethylsilane 
• 26542-47-2 3-[1,1,3,3-Tetramethyl-3-(3-oxo-propyl)-disiloxanyl]-propionaldehyde 
• 18387-98-9 (3-acetoxypropyl)dimethylsilyl chloride 
• 40171-30-0 1,3-bis(3-formyloxypropyl)tetramethyldisiloxane 
• 3277-26-7 1,1,3,3-Tetramethyldisiloxane 
• 107-18-6 allyl alcohol 
• 26542-48-3 1,3-bis-(3,3-dimethoxy-propyl)-1,1,3,3-tetramethyl-disiloxane 
• 18147-13-2 chloro-(3-chloro-propoxy)-dimethyl-silane 
• 18547-30-3 1,3-bis(3-trimethylsilyloxypropyl)tetramethyldisiloxane 

Downstream Products

• 17898-71-4 1,3-bis<3-(2-propenoyloxy)propyl>tetramethyldisiloxane 
• 4608-02-0 4,4,6,6-tetramethyl-5-oxa-4,6-disila-nonanedioic acid 
• 10605-40-0 (3-chloropropyl)dimethylchlorosilane 
• 18547-93-8 1,3-bis<3-(2-methylpropenoyloxy)propyl>tetramethyldisiloxane 

Relevant articles and documents

Synthesis and characterization of some bis(hydroxyalkyl)- and bis(hydroxyester)-functionalized disiloxanes

Novel hydroxyester disiloxanes (1,3-bis(6-hydroxyhexa noylmethyl)-1,1,3,3- tetramethyl disiloxane and 3-bis(2-hydroxypropanoylmethyl)tetramethyl disiloxane) were synthesized, and preparation of other known monomers, namely 1,3-bis(hydroxypropyl)-1,1,3,3-tetramethyl disiloxane, 1,3- bis(hydroxyethoxypropyl)-1,1,3,3-tetramethyl disiloxane and 1,3- bis(hydroxymethyl)-1,1,3,3-tetramethyl disiloxane was developed to obtain better yields and reduce production time and expense. All compounds were characterized by infrared spectroscopy, using 1H NMR, 13C NMR, and 29Si NMR and were reacted with diisocyanates, resulting in poly(siloxane-urethane) copolymers with unique properties.

Biocatalytic synthesis of silicone polyesters

The immobilized lipase B from Candida antarctica (CALB) was used to synthesize silicone polyesters. CALB routinely generated between 74-95% polytransesterification depending on the monomers that were used. Low molecular weight diols resulted in the highes

Synthesis of disiloxanes containing hydroxyalkyl groups

Four 1,3-bis(ω-hydroxyalkyl)tetramethyldisiloxanes 2O (I; n = 3-6) were synthsized by methanolysis of the correspondig trimethylsilylterminated disiloxanes (III).The latter were obtained from 1,1,3,3-tetramethyldisiloxane (II) and the appropriate (ω-alkenyloxy)trimethylsilanes (IV).Under acidic conditions III formed in addition to I, the corresponding (ω-hydroxyalkyl)pentamethyldisiloxanes HO(CH2)nSiMe2OSiMe3 (V; n = 3-6).

Method for preparing hydroxyalkyl disiloxane

The invention relates to a method for preparing hydroxyalkyl disiloxane. The method includes the following steps: (1) mixing carboxylic acid unsaturated ester with dimethylchlorosilane in an organic solvent, introducing inert gas, adding hydrosilyation catalyst and stirring for 2 to 12 hours; (2) dropwising a mixed liquid of acidic aqueous solution and the organic solvent to the hydrosilylation reaction product and hydrolyzing for 1 to 6 hours; (3) regulating the hydrolysis product pH to be neutral, extracting organic layers three times with extraction agent, washing three times, drying for 24 hours and removing the extraction agent by rotary evaporating to obtain the finished product. The method has the advantages of simple operation, simple steps, mild reaction conditions, pure product and high yield, and the yield of the hydrosilylation reaction product can reach 83.2% and the yield of the hydrolysis product can reach 89.5%.