CAS No.2031-79-0,Hexaethylcyclotrisiloxane Suppliers

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Basic Information

Molecular Structure:
CAS No.:	2031-79-0
Name:	Hexaethylcyclotrisiloxane
Article Data:	19

Formula:	C₁₂H₃₀O₃Si₃
Molecular Weight:	306.625
Synonyms:	Cyclotrisiloxane,hexaethyl- (6CI,7CI,8CI,9CI);1,1,3,3,5,5-Hexaethylcyclotrisiloxane;
EINECS:	217-984-4
Density:	0.919 g/cm³
Melting Point:	14 °C
Boiling Point:	252.1 °C at 760 mmHg
Flash Point:	94.3 °C
Appearance:	Colorless or yellowish transparent liquid
Risk Codes:	36/37/38
Safety:	26-36/37/39
PSA:	27.69000
LogP:	4.49580

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Specification

The cas register number of Hexaethylcyclotrisiloxane is 2031-79-0. It also can be called as 1,1,3,3,5,5-Hexaethylcyclotrisiloxane and the IUPAC Name about this chemical is 2,2,4,4,6,6-hexaethyl-1,3,5,2,4,6-trioxatrisilinane. It belongs to the Siloxanes.

Physical properties about Hexaethylcyclotrisiloxane are: (1)#H bond acceptors: 3; (2)#Freely Rotating Bonds: 6; (3)Polar Surface Area: 27.69Å²; (4)Index of Refraction: 1.435; (5)Molar Refractivity: 87.05 cm³; (6)Molar Volume: 333.5 cm³; (7)Polarizability: 34.51x10^-24cm³; (8)Surface Tension: 21.9 dyne/cm; (9)Enthalpy of Vaporization: 46.96 kJ/mol; (10)Vapour Pressure: 0.0314 mmHg at 25°C.

Preparation: this chemical can be prepared bydichloro-diethyl-silane. This reaction also can produced hexaethyl-cyclotrisiloxane. This reaction will need reagent H₂O and solvent toluene. The reaction time is 27 hour(s) with reaction temperature of 20 ℃. The yield is about 19%.

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. When you are using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: CC[Si]1(O[Si](O[Si](O1)(CC)CC)(CC)CC)CC
(2)InChI: InChI=1S/C12H30O3Si3/c1-7-16(8-2)13-17(9-3,10-4)15-18(11-5,12-6)14-16/h7-12H2,1-6H3
(3)InChIKey: KMPBCFZCRNKXSA-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Source
mouse	LD	intraperitoneal	> 10gm/kg (10000mg/kg)	Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 51(8), Pg. 91, 1986.
mouse	LD	oral	> 20gm/kg (20000mg/kg)	Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 51(8), Pg. 91, 1986.
rat	LD	intraperitoneal	> 10gm/kg (10000mg/kg)	Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 51(8), Pg. 91, 1986.
rat	LD	oral	> 20gm/kg (20000mg/kg)	Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 51(8), Pg. 91, 1986.