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L16642 2,4,6,8-Tetramethylcyclotetrasiloxane, 99%

CAS Number
2370-88-9
Synonyms
1,3,5,7-Tetramethylcyclotetrasiloxane
TMCTS

Stock No. Size Price ($) Quantity Availability
L16642-14 25g 122.00
L16642-22 100g 372.00
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2,4,6,8-Tetramethylcyclotetrasiloxane, 99%

MDL
MFCD00039567
EINECS
219-137-4

Chemical Properties

Formula
C4H16O4Si4
Formula Weight
240.51
Melting point
-69°
Boiling Point
134-135°
Flash Point
25°(77°F)
Density
0.991
Refractive Index
1.3870
Storage & Sensitivity
Moisture Sensitive. Store under Nitrogen. Ambient temperatures.
Solubility
Miscible with most organic solvents. Immiscible with water.

Applications

Tetramethyl-cyclotetrasiloxane is a good impregnant of photoelectric material. It is used to manufacture of modified siloxane with defined hydrogen content and chain quantity. It is also used in production of silicone polymers and acts as a precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, oxycarbide thin films with low dielectric constant for microelectronics and semiconductors.

Notes

Incompatible with oxidizing agents, bases and acids. Store in a cool place.

Literature References

Zhu, L.; Xue, J.; Wang, Y.; Chen, Q.; Ding, J.; Wang, Q. Ice-phobic Coatings Based on Silicon-Oil-Infused Polydimethylsiloxane. ACS Appl. Mater. Interfaces 2013, 5 (10), 4053-4062.

Luo, Z.; Zhou, X.; Yu, J.; Sun, K.; Wang, F. Mechanical properties of SiC/SiC composites fabricated by PIP process with a new precursor polymer. Ceram. Int. 2014, 40 (1), 1939-1944.

Jiang, S.; Qiu, T.; He, L.; Tan, J.; Li, X. The nucleation study on the cationic miniemulsion polymerization of octamethylcyclotetrasiloxane (D4). Colloid Polym. Sci. 2013, 291 (5), 1135-1142.

GHS Hazard and Precautionary Statements

Hazard Statements: H226-H315-H319-H335

Flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P210-P233-P235-P240-P241-P242-P243-P261-P264b-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P363-P370+P378q-P501c

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Keep container tightly closed. Keep cool. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/ equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Wash contaminated clothing before reuse. In case of fire: Use CO2, dry chemical, or foam Dispose of contents/ container to an approved waste disposal plant

Other References

Beilstein
1787074
Hazard Class
3
Packing Group
III
Harmonized Tariff Code
2934.99
TSCA
Yes

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