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| CAS No.: | 540-97-6 |
|---|---|
| Name: | DODECAMETHYLCYCLOHEXASILOXANE |
| Molecular Structure: | |
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| Formula: | C12H36O6Si6 |
| Molecular Weight: | 444.927 |
| Synonyms: | Cyclohexasiloxane,dodecamethyl- (6CI,7CI,8CI,9CI);DC 246;DC 246 Fluid;Dodecamethylcyclohexasiloxane;Dodecamethylhexacyclosiloxane;Dow Corning 246;Dow Corning 246 Fluid; |
| EINECS: | 208-762-8 |
| Density: | 0.97 g/cm3 |
| Melting Point: | -3 °C |
| Boiling Point: | 245 °C at 760 mmHg |
| Flash Point: | 124.4 °C |
| Solubility: | 5.1μg/L at 23℃ |
| Risk Codes: | 36/37/38 |
| Safety: | 26-36/37/39 |
| PSA: | 55.38000 |
| LogP: | 4.31040 |
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Specification
The Dodecamethylcyclohexasiloxane, with the cas register number 540-97-6, has other name of Cyclohexasiloxane,2,2,4,4,6,6,8,8,10,10,12,12-dodecamethyl-. And its product categories are including organics; si (classes of silicon compounds); siloxanes; si-o compounds. This chemical is usually used to prepare silicone oil and silicon rubber, with the form of mixed cyclic siloxane.
The characteristics of this chemical are as follows: (1)#H bond acceptors: 6; (2)Polar Surface Area: 55.38; (3)Index of Refraction: 1.43; (4)Molar Refractivity: 118.54 cm3; (5)Molar Volume: 458.3 cm3; (6)Polarizability: 46.99 ×10-24 cm3; (7)Surface Tension: 19.5 dyne/cm; (8)Density: 0.97 g/cm3; (9)Flash Point: 124.4 °C; (10)Enthalpy of Vaporization: 46.25 kJ/mol; (11)Boiling Point: 245 °C at 760 mmHg; (12)Vapour Pressure: 0.046 mmHg at 25°C; (13)Exact Mass: 444.112748; (14)MonoIsotopic Mass: 444.112748; (15)Topological Polar Surface Area: 55.4; (16)Heavy Atom Count: 24; (17)Complexity: 320.
Use of Dodecamethylcyclohexasiloxane: Dodecamethylcyclohexasiloxane reacts with chloro-dimethyl-silane to produce 1,13-Dihydrohexadecamethyloctasiloxan, with the following condition: reagent: H2O; catalytic agent: SO2; solution: hexane; yield: 97%; other condition: ambient temperature.
Production method of Decamethylcyclopentasiloxane: 1,1,3,3-tetramethyl-disiloxane reacts with decamethyl-cyclopentasiloxane to produce dodecamethyl-cyclohexasiloxane and iodo-dimethyl-silane, with the following condition: reagent: I2; yield: 50%.
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While dealing with this chemical, you should be very cautious. For being a kind of irritant chemical, it is harmful to eyes, respiratory system and skin. Therefore, you should take the following instructions. Wear suitable protective clothing, gloves and eye/face protection, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.
In addition, you could obtain the molecular structure by converting the following datas:
(1)SMILES:O1[Si](O[Si](O[Si](O[Si](O[Si](O[Si]1(C)C)(C)C)(C)C)(C)C)(C)C)(C)C
(2)InChI:InChI=1/C12H36O6Si6/c1-19(2)13-20(3,4)15-22(7,8)17-24(11,12)18-23(9,10)16-21(5,6)14-19/h1-12H3
(3)InChIKey:IUMSDRXLFWAGNT-UHFFFAOYAY