Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

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

A15240 Octamethylcyclotetrasiloxane, 98%

CAS Number
556-67-2
Synonyms

Size Price ($) Quantity Availability
100g 65.10
500g 239.99
Add to Cart Add to Quote Request View Item

Octamethylcyclotetrasiloxane, 98%

MDL
MFCD00003269
EINECS
209-136-7

Chemical Properties

Formula
C8H24O4Si4
Formula Weight
296.62
Melting point
17-18°
Boiling Point
175-176°
Flash Point
56°(132°F)
Density
0.956
Refractive Index
1.3960
Sensitivity
Moisture Sensitive
Solubility
Immiscible with water.

Applications

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.

Notes

Incompatible with strong oxidizing agents, acids and bases.

Literature References

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 Hazard and Precautionary Statements

Hazard Statements: H226-H361-H413

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

Precautionary Statements: 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.

Other References

Merck
14,6747
Beilstein
1787074
Hazard Class
3
Packing Group
III
Harmonized Tariff Code
2934.99
TSCA
Yes
RTECS
GZ4397000

Recommended

  • B23697

    1,1,3,3-Tetramethyldisiloxane, 97%
  • L16970

    Hexamethyldisiloxane, NMR grade, 99.7%
  • 42412

    Decamethylcyclopentasiloxane, 97%
  • B23028

    Hexamethylcyclotrisiloxane, 97%
  • A13113

    Chlorodimethylsilane, 97%

Recently Viewed

Chemicals

Life Science

Metals & Materials

Catalysts

Analytical & Labware