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42500 Polydimethylsiloxane, trimethylsiloxy terminated, M.W. 4000

CAS Number
9016-00-6
Synonyms

Stock No. Size Price ($) Quantity Availability
42500-AD 50ml 20.50
42500-AK 250ml 44.80
42500-K2 1L 115.00
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Polydimethylsiloxane, trimethylsiloxy terminated, M.W. 4000

MDL
MFCD00148360

Chemical Properties

Formula
(CH3)3SiO(Si(CH3)2O)nSi(CH3)3
Form
Viscous liquid
Melting point
<-40°
Boiling Point
>225°
Flash Point
285°(545°F)
Density
0.960
Refractive Index
1.4015
Storage & Sensitivity
Ambient temperatures.
Solubility
Slightly miscible with water. Immiscible with methanol and ethylene glycol.

Applications

Polydimethylsiloxane, trimethylsiloxy terminated is widely used as a common surfactant. It is an active component of defoamers which suppress the formation of foams and as a critical ingredient in water-repelling coatings as an active silicone fluid. It finds application in optic telecommunications, biomedical research, elasticity of polymer networks, adhesive materials and in skin-moisturizing lotions. Furthermore, it is used as a filler fluid in breast implants and as a sorbent for the analysis of headspace (dissolved gas analysis) of food.

Notes

Viscosity 50 centistokesIncompatible with strong oxidizing agents.

Literature References

Gerhardt, H.; Schmitt, C.; Betz, O.; Albert, K.; Lämmerhofer, M. Contact solid-phase microextraction with uncoated glass and polydimethylsiloxane-coated fibers versus solvent sampling for the determination of hydrocarbons in adhesion secretions of Madagascar hissing cockroaches Gromphadorrhina portentosa (Blattodea) by gas chromatography-mass spectrometry. J. Chromatogr. A 2015, 1388, 24-35.

Ozkan, E.; Ozkan, F. T.; Allan, E.; Parkin, I. P. The use of zinc oxide nanoparticles to enhance the antibacterial properties of light-activated polydimethylsiloxane containing crystal violet. RSC Adv. 2015, 5 (12), 8806-8813.

Other References

Harmonized Tariff Code
3910.00
TSCA
No
RTECS
TQ2690000

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