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        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE

        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE
        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE structure
        CAS No.
        2370-88-9
        Chemical Name:
        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE
        Synonyms
        H-4;H4R;HH4R;TMCTS;SP9144;GPRv53;Tetramethylcyclotetrasiloxane;cyclic tetramethyltetrasiloxane;1,3,5,7-Cyclotetra(methylsiloxane);2,4,6,8-tetramethyl-cyclotetrasiloxan
        CBNumber:
        CB1453337
        Molecular Formula:
        C4H16O4Si4
        Formula Weight:
        240.51
        MOL File:
        2370-88-9.mol

        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Properties

        Melting point:
        −69 °C(lit.)
        Boiling point:
        134 °C(lit.)
        Density 
        0.986 g/mL at 25 °C(lit.)
        refractive index 
        n20/D 1.387(lit.)
        Flash point:
        76 °F
        storage temp. 
        Flammables area
        form 
        liquid
        Specific Gravity
        0.991
        Water Solubility 
        Miscible with most organic solvents. Immiscible with water.
        Sensitive 
        Moisture Sensitive
        BRN 
        1787074
        InChIKey
        BQYPERTZJDZBIR-UHFFFAOYSA-N
        CAS DataBase Reference
        2370-88-9(CAS DataBase Reference)
        EPA Substance Registry System
        Cyclotetrasiloxane, 2,4,6,8-tetramethyl- (2370-88-9)
        SAFETY
        • Risk and Safety Statements
        Symbol(GHS) 
        GHS02,GHS07
        Signal word  Warning
        Hazard statements  H319-H226
        Precautionary statements  P280a-P305+P351+P338-P501a-P210-P233-P240-P241+P242+P243-P264-P280-P303+P361+P353-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501
        Hazard Codes  Xi
        Risk Statements  10-36
        Safety Statements  16-26-36
        RIDADR  UN 1993 3/PG 3
        WGK Germany  3
        10-21
        TSCA  Yes
        HazardClass  3
        PackingGroup  III
        HS Code  29319090

        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE price More Price(8)

        Manufacturer Product number Product description CAS number Packaging Price Updated Buy
        Sigma-Aldrich 512990 2,4,6,8-Tetramethylcyclotetrasiloxane ≥98.5%, ≥99.999% trace metals basis 2370-88-9 25ml $198 2019-12-02 Buy
        Sigma-Aldrich 512990 2,4,6,8-Tetramethylcyclotetrasiloxane ≥98.5%, ≥99.999% trace metals basis 2370-88-9 100ml $509 2019-12-02 Buy
        TCI Chemical T2076 2,4,6,8-Tetramethylcyclotetrasiloxane >95.0%(GC) 2370-88-9 5g $29 2019-12-02 Buy
        TCI Chemical T2076 2,4,6,8-Tetramethylcyclotetrasiloxane >95.0%(GC) 2370-88-9 25g $92 2019-12-02 Buy
        Alfa Aesar L16642 2,4,6,8-Tetramethylcyclotetrasiloxane, 99% 2370-88-9 25g $122 2019-12-02 Buy

        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Chemical Properties,Uses,Production

        Description

        2, 4, 6, 8-TETRAMETHYLCYCLOTETRASILOXANE can be used as the precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, and gate dielectrics in thin-film transistors (TFT) (for example, for the preparation of ultralow dielectric constant pSiCOH film), and is a component of photochemically formed SiOX monolayers on TiO. It is a good impregnant of photoelectric material. It can be used for the manufacturing of modified siloxane with defined hydrogen content and chain quality.

        Chemical Properties

        Colorless or yellowish transparent liquid

        Uses

        2,4,6,8-Tetramethylcyclotetrasiloxane can occur addition reaction with unsaturated alkenes, so it’s utilized widely to synthesize variety functional reactive silicone fluids which is used to form silicone block copolymer, or used as crosslinker of vinyl addition silicone rubber. 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.

        References

        https://www.alfa.com/zh-cn/catalog/L16642/
        http://www.sigmaaldrich.com/catalog/product/aldrich/512990?lang=en&region=US
        Grill, A., and V. Patel. "Ultralow dielectric constant pSiCOH films prepared with tetramethylcyclotetrasiloxane as skeleton precursor." Journal of Applied Physics 104.2(2008):107.
        Zhang, Jianming, D. S. Wavhal, and E. R. Fisher. "Mechanisms of SiO2 film deposition from tetramethylcyclotetrasiloxane, dimethyldimethoxysilane, and trimethylsilane plasmas." Journal of Vacuum Science & Technology A Vacuum Surfaces & Films 22.1(2004):201-213.
        Fujino, Katsuhiro, et al. "Low-Temperature Atmospheric-Pressure Chemical Vapor Deposition, Using 2, 4, 6, 8-Tetramethylcyclotetrasiloxane and Ozone." Japanese Journal of Applied Physics 33. 4A (1994):2019-2024.

        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Preparation Products And Raw materials

        Raw materials

        Preparation Products


        2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Suppliers

        Global( 131)Suppliers
        Supplier Tel Fax Email Country ProdList Advantage
        Kingfirst Chemical (Nanjing) Co.,Ltd +86-025-84522992 84524602 13805186390
        +86 025 84521617 marketing@kingfirstchem.com China 74 58
        Jiangxi New jiayi New Materials Co., Ltd. 15988432077
        sales@xjysi.com CHINA 30 58
        Hubei kefule Material Technology Co., Ltd 027-84459282
        alex@cfmats.com CHINA 863 58
        J & K SCIENTIFIC LTD. 010-82848833- ;010-82848833-
        86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96505 76
        Meryer (Shanghai) Chemical Technology Co., Ltd. 21-61259100-
        86-21-61259102 sh@meryer.com China 40268 62
        Alfa Aesar 400-610-6006; 021-67582000
        021-67582001/03/05 saleschina@alfa-asia.com China 30163 84
        Chemexcel (Zhangjiakou) Fine Chemicals Co., Ltd 86-10-62944695-809
        86-10-82415873 sales@chemexcel.com.cn China 80 62
        TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
        021-67121385 Sales-CN@TCIchemicals.com China 24555 81
        BeiJing Hwrk Chemicals Limted 21-51691807-
        021-55236763 peter.shi@hwrkchemical.com; China 14684 55
        Energy Chemical 021-58432009 / 400-005-6266
        021-58436166-800 info@energy-chemical.com China 44026 61

        View Lastest Price from 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE manufacturers

        Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
        2018-08-12 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE
        2370-88-9
        US $1.00 / KG 1G 99% 100KG career henan chemical co
        2019-04-19 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE
        2370-88-9
        US $10.00 / KG 1KG 99% 5000kg/month Hebei Chisure Biotechnology Co., Ltd.

        2370-88-9(2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE)Related Search:


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