8.14051
Hexamethyldisiloxane
for synthesis
Synonyme(s) :
Hexamethyldisiloxane, 2,2,4,4-Tetramethyl-3-oxa-2,4-disilapentane, HMDSO
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A propos de cet article
vapor pressure
20 hPa ( 20 °C)
Quality Segment
assay
≥98.5% (GC)
form
liquid
autoignition temp.
340 °C
potency
>12160 mg/kg LD50, oral (Rat), >2000 mg/kg LD50, skin (Rat)
expl. lim.
0.5-21.8 % (v/v)
bp
100 °C/1013 hPa
mp
-68 °C
transition temp
flash point 4 °C
solubility
insoluble 0.00037 g/L
density
0.76 g/cm3 at 25 °C
storage temp.
2-30°C
SMILES string
[Si](O[Si](C)(C)C)(C)(C)C
InChI
1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3
InChI key
UQEAIHBTYFGYIE-UHFFFAOYSA-N
Application
- Hexamethyldisiloxane coating by plasma to create a superhydrophobic surface for fabric masks: Research into the application of HMDSO plasma coatings to fabric masks to impart superhydrophobic properties, enhancing their resistance to moisture (Prado et al., 2022).
- PECVD of hexamethyldisiloxane coatings using extremely asymmetric capacitive RF discharge: Examines the deposition of HMDSO-based coatings via plasma-enhanced chemical vapor deposition, focusing on the influence of discharge asymmetry on the coating properties (Gosar et al., 2020).
- A ReaxFF-based molecular dynamics study of the pyrolysis mechanism of hexamethyldisiloxane: This study uses molecular dynamics to explore the pyrolysis processes of HMDSO, important for understanding its stability and decomposition under thermal stress (Chen et al., 2022).
- Thermal stability of hexamethyldisiloxane and octamethyltrisiloxane: Discusses the thermal stability of HMDSO compared to related siloxanes, providing valuable data for applications involving heat exposure (Keulen et al., 2018).
Analysis Note
Density (d 20 °C/ 4 °C): 0.762 - 0.764
Identity (IR): passes test
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Danger
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 2
Classe de stockage
3 - Flammable liquids
wgk
WGK 2
flash_point_f
21.2 °F - closed cup
flash_point_c
-6 °C - closed cup
hcodes
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