8.14750
Octamethylcyclotetrasiloxane
for synthesis
Synonym(s):
Octamethylcyclotetrasiloxane, Octamethyltetrasiloxane
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About This Item
vapor pressure
1.3 hPa ( 20 °C)
Quality Level
assay
≥98.0% (GC)
form
liquid
autoignition temp.
400 °C
potency
>2000 mg/kg LD50, oral (Rat), >2400 mg/kg LD50, skin (Rat)
expl. lim.
0.4-11.7 % (v/v)
kinematic viscosity
1.6 cSt(20 °C)
bp
176 °C/1013 hPa
mp
18 °C
transition temp
flash point 51 °C
solubility
<0.001 g/L (Hydrolysis)
density
0.95 g/cm3 at 25 °C
storage temp.
2-30°C
SMILES string
[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C
InChI
1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
InChI key
HMMGMWAXVFQUOA-UHFFFAOYSA-N
Analysis Note
Refractive index (n 25°/D): 1.394 - 1.395
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.
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signalword
Warning
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - Repr. 2
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
123.8 °F - closed cup
flash_point_c
51 °C - closed cup
Certificates of Analysis (COA)
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