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541-02-6

Name Decamethylcyclopentasiloxane
CAS 541-02-6
EINECS(EC#) 208-764-9
Molecular Formula C10H30O5Si5
MDL Number MFCD00046966
Molecular Weight 370.77
MOL File 541-02-6.mol
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Chemical Properties

Appearance liquid
Melting point  -44°C
Boiling point  90 °C/10 mmHg (lit.)
density  0.958 g/mL at 25 °C(lit.)
vapor pressure  33.2Pa at 25℃
refractive index  n20/D 1.396(lit.)
Fp  162 °F
storage temp.  2-8°C
solubility  <0.0001g/l (calculated)
form  Liquid
color  Colorless
Specific Gravity 0.959
Stability: Stable. Incompatible with strong oxidizing agents.
explosive limit 0.52-7%(V)
Water Solubility  Immiscible with water.
Hydrolytic Sensitivity 1: no significant reaction with aqueous systems
Merck  14,2848
BRN  1800166
Dielectric constant 2.5（20℃）
InChIKey XMSXQFUHVRWGNA-UHFFFAOYSA-N
LogP 8.07 at 24.6℃
Uses
Octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane are major industrial products, which are either marketed as such or used for the production of polydimethylsiloxanes.
CAS DataBase Reference 541-02-6(CAS DataBase Reference)
NIST Chemistry Reference Decamethylcyclopentasiloxane(541-02-6)
EPA Substance Registry System 541-02-6(EPA Substance)
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Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S24/25:Avoid contact with skin and eyes .
RIDADR  NA 1993 / PGIII
WGK Germany  2
RTECS  GY5945200
TSCA  Yes
HS Code  29310095
Hazardous Substances Data 541-02-6(Hazardous Substances Data)
Toxicity
LD50 oral in rat: > 24134mg/kg

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Material Safety Data Sheet(MSDS)

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