2474-02-4 Usage
Uses
Used in Surfactant Applications:
1,7-Dichlorooctamethyltetrasiloxane is used as a surfactant to reduce the surface tension of liquids, facilitating the mixing of otherwise immiscible substances. Its surfactant properties are beneficial in enhancing the performance of various products by improving their stability and solubility.
Used in Emulsifier Applications:
In the role of an emulsifier, 1,7-Dichlorooctamethyltetrasiloxane helps in stabilizing emulsions by preventing the separation of two immiscible liquids, such as oil and water. This is particularly useful in the formulation of creams, lotions, and other personal care products that require a stable emulsion.
Used as a Dispersant:
1,7-Dichlorooctamethyltetrasiloxane is utilized as a dispersant to evenly distribute particles within a medium, preventing the formation of lumps or agglomerates. This property is valuable in industries such as paints and coatings, where a uniform dispersion of pigments and fillers is essential for optimal performance.
Used in Silicone-based Polymers and Elastomers Production:
1,7-Dichlorooctamethyltetrasiloxane is used as a key component in the production of silicone-based polymers and elastomers. These materials are known for their exceptional properties, such as heat resistance, flexibility, and chemical stability, making them suitable for a wide range of applications, including automotive, aerospace, and electronics industries.
Used in Personal Care Products:
In the personal care industry, 1,7-Dichlorooctamethyltetrasiloxane is used in the manufacturing of various products, such as shampoos, conditioners, and skin care formulations. Its ability to improve the texture, spreadability, and stability of these products contributes to their overall performance and consumer satisfaction.
Used in Pharmaceutical Formulations:
1,7-Dichlorooctamethyltetrasiloxane is employed in the pharmaceutical sector for its ability to enhance the solubility and stability of active pharmaceutical ingredients. This can lead to improved drug delivery and efficacy, as well as reduced side effects.
Used in Agricultural Chemicals:
In agriculture, 1,7-Dichlorooctamethyltetrasiloxane is used in the formulation of various chemicals, such as pesticides and herbicides. Its surfactant and emulsifying properties help to improve the effectiveness of these chemicals by ensuring even distribution and absorption by the target plants.
Check Digit Verification of cas no
The CAS Registry Mumber 2474-02-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,4,7 and 4 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2474-02:
(6*2)+(5*4)+(4*7)+(3*4)+(2*0)+(1*2)=74
74 % 10 = 4
So 2474-02-4 is a valid CAS Registry Number.
InChI:InChI=1/C8H24Cl2O3Si4/c1-14(2,9)11-16(5,6)13-17(7,8)12-15(3,4)10/h1-8H3
2474-02-4Relevant articles and documents
Building blocks for oligomeric siloxanes –selective chlorination of hydrido-siloxanes
Hafner, Thomas,Torvisco, Ana,Uhlig, Frank
supporting information, p. 1 - 4 (2018/09/11)
A new method was developed to achieve highly selective monochlorination of α,ω-dihydridosiloxanes, ((H)Me2SiO-(SiMe2O)n-SiMe2(H), n = 0–2; (H)R2Si–O-SiR2(H); R = Me, iPr, Ph; 3,5-dihydridooctamethyltetrasiloxane, Me3SiO-(Si(H)MeO)2–SiMe3) with trichloroisocyanuric acid (TCCA). The dependence of the selectivity of the monochlorination on the siloxane chain length is also discussed.
POLYARYLACETYLENES CONTAINING SILOXANE, SILANE, AND CARBORANE MOIETIES
-
, (2012/01/03)
Disclosed herein are the compounds shown below. Each R is an organic group, Cb is a carborane group, and —C6H4— is phenylene. The value of each m is a nonnegative integer, q is 0 or 1, with the proviso that if q is 0 then m is 0 or 1, p is a positive integer, r is a positive integer, and n is an integer greater than or equal to 10. Also disclosed are methods of making and crosslinking the compounds. [in-line-formulae]—{SiR2—([O]q—SiR2)m-[Cb-SiR2—([O]q—SiR2)m]p—C≡C—C6H4—C≡C}—[/in-line-formulae] [in-line-formulae]—{SiR2—(O—SiR2)m—C≡C—C6H4—C≡C}n—;[/in-line-formulae] [in-line-formulae]—{SiR2—([O]q—SiR2)m—[C≡C—C6H4—C≡C—SiR2—([O]q—SiR2)m]p-Cb-[SiR2—([O]q—SiR2)m-Cb]r}-[/in-line-formulae]
REACTION OF OCTAMETHYLCYCLOTETRASILOXANE AND PERMETHYLOLIGOSILOXANES WITH ACYL CHLORIDES IN THE PRESENCE OF CoCl2
Basenko, S. V.,Ogorodnikova, E. I.,Vitkovskii, V. Yu.,Mirskov, R. G.,Voronkov, M. G.
, p. 79 - 83 (2007/10/02)
Octamethylcyclotetrasiloxane is cleaved quantitatively by acetyl chloride (1:1 molar ratio) in the presence of anhydrous CoCl2 in acetonitrile at room temperature to form primarily α-chloro-ω-acetoxyoligodimethylsiloxanes nOCOCH3 (n = 0-3; yield, 60-65percent)>.In the presence of an equimolar amount of trimethylacetoxysilane of hexamethyldisiloxane, the major reaction products are α-methyl-ω-acetoxyoligodimethylsiloxanes nOCOCH3 (n = 4-6; yield, 65-70percent)>.
A Convenient Synthesis of α,ω-Difunctionalized Linear Dimethylsiloxanes with Definite Chain Lengths
Yoshino, Koji,Kawamata, Akira,Uchida, Hiroaki,Kabe, Yoshio
, p. 2133 - 2136 (2007/10/02)
α,ω-Difunctionalized linear dimethylsiloxanes with definite chain lengths are conveniently prepared by the inorganic-solid-catalyzed ring cleavage of cyclodimethylsiloxanes with dimethylchlorosilane and water under very mild conditions.
