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Home >> Chemical Listing >> P >> 1,3,5,7,9-Pentamethylcyclopentasiloxane

1,3,5,7,9-Pentamethylcyclopentasiloxane
[CAS# 6166-86-5]

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Identification
Classification Chemical reagent >> Silane reagent
Name 1,3,5,7,9-Pentamethylcyclopentasiloxane
Synonyms 2,4,6,8,10-Pentamethylcyclopentasiloxane; D 5H; LS 8990
Molecular Structure CAS # 6166-86-5, 1,3,5,7,9-Pentamethylcyclopentasiloxane, 2,4,6,8,10-Pentamethylcyclopentasiloxane, D 5H, LS 8990
Molecular Formula C5H20O5Si5
Molecular Weight 300.64
CAS Registry Number 6166-86-5
EC Number 228-204-7
Properties
Density 1.004 g/cm3 (20 ºC)*
Melting point -108 ºC**
Boiling point 169 ºC***
Refractive index 1.3930 (589.3 nm 20 ºC)*****
Flash point 52.9±18.7 ºC, Calc.****
* Krasnova, T. L.; Zhurnal Obshchei Khimii 1985, V55(7), P1528-33.
** Sauer, R. O.; Journal of the American Chemical Society 1946, V68, P962-3.
*** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)
**** Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)
***** Sokolov, N. N.; Zhurnal Obshchei Khimii 1956, V26, P933-6.
Safety Data
Hazard Symbols symbol   Xi    Details
Risk Codes R10;R36/37/38    Details
Safety Description S16;S26;S36    Details
Hazard Classification
up    Details
HazardClassCategory CodeHazard Statement
Flammable liquidsFlam. Liq.3H226
Transport Information UN 1993C 3 / PGIII
SDS Available
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