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556-67-2 - Octamethylcyclotetrasiloxane, 98% - A15240 - Alfa Aesar

A15240 Octamethylcyclotetrasiloxane, 98%

CAS-Nummer
556-67-2
Synonyme

Größe Preis ($) Menge Verfügbarkeit
100g 65,10
500g 239,99
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Octamethylcyclotetrasiloxane, 98%

MDL
MFCD00003269
EINECS
209-136-7

Chemische Eigenschaften

Formel
C8H24O4Si4
Molmasse
296.62
Schmelzpunkt
17-18°
Siedepunkt
175-176°
Flammpunkt
56°(132°F)
Dichte
0.956
Brechungsindex
1.3960
Sensitivität
Moisture Sensitive
Löslichkeit
Immiscible with water.

Anwendungen

Octamethylcyclotetrasiloxane is used to prepare silicone oil, silicone rubber and silicone resin having different degrees of polymerization through ring opening and polymerizing. It is also widely used in various fields viz. construction, electronics, textile, automobile, personal care, food, and machining. It is an organometallic reagent utilized for the preparation of siloxane polymers having high surface-hydrophobicity restoration.

Bemerkungen

Incompatible with strong oxidizing agents, acids and bases.

Literaturverweise

Useful for deactivating glass GC capillary columns.

Sigot, L.; Ducom, G.; Germain, P. Adsorption of octamethylcyclotetrasiloxane (D4) on silica gel (SG): Retention mechanism. Microporous Mesoporous Mater. 2015, 213, 118-124.

Tugui, C.; Cazacu, M.; Sacarescu, L.; Bele, A.; Stiubianu, G.; Ursu, C.; Racles, C. Full silicone interpenetrating bi-networks with different organic groups attached to the silicon atoms. Polymer 2015, 77, 312-322.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H226-H361-H413

Flammable liquid and vapour. Suspected of damaging fertility or the unborn child. May cause long lasting harmful effects to aquatic life.

Sicherheitshinweise: P210-P201-P273-P280-P281-P240-P241-P303+P361+P353-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Obtain special instructions before use. Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. Use personal protective equipment as required. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/ equipment. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,6747
Beilstein
1787074
Gefahrenklasse
3
Verpackungsgruppe
III
Harmonized Tariff Code
2934.99
TSCA
Yes
RTECS
GZ4397000

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