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67763-03-5

Silsesquioxanes are members of polyoctahedral silsesquioxanes ("POSS"), which have attracted attention as preceramic polymer precursors to ceramic materials and nanocomposites. Diverse substituents (R) can be attached to the Si centers. The molecules are unusual because they feature an inorganic silicate core and an organic exterior. The silica core confers rigidity and thermal stability.

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  • 67763-03-5 Structure

  • Basic information

    1. Product Name: Silsesquioxanes
    2. Synonyms: METHYLPHENYLSILSESQUIOXANE;Organosilicon resin;Me Ph cyclosilsesquioxanes;Me Ph silsesquioxanes;Silsesquioxanes Me Ph;Organosilicone resin;SILICONE RELAESE EMULSION;silicon(s)
    3. CAS NO:67763-03-5
    4. Molecular Formula: H4Si
    5. Molecular Weight: 32.11726
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 67763-03-5.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: Silsesquioxanes(CAS DataBase Reference)
    10. NIST Chemistry Reference: Silsesquioxanes(67763-03-5)
    11. EPA Substance Registry System: Silsesquioxanes(67763-03-5)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 67763-03-5(Hazardous Substances Data)

67763-03-5 Usage

Synthesis

Silsesquioxanes are usually synthesized by hydrolysis of organotrichlorosilanes.An idealized synthesis is:8 RSiCl3?+ 12 H2O → [RSiO3/2]8?+ 24 HCl

Uses

A silsesquioxane is an organosilicon compound with the chemical formula [RSiO3/2]n (R = H, alkyl, aryl or alkoxyl).Silsesquioxanes are colorless solids that adopt cage-like or polymeric structures with Si-O-Si linkages and tetrahedral Si vertices.

Check Digit Verification of cas no

The CAS Registry Mumber 67763-03-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,6 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67763-03:
(7*6)+(6*7)+(5*7)+(4*6)+(3*3)+(2*0)+(1*3)=155
155 % 10 = 5
So 67763-03-5 is a valid CAS Registry Number.

67763-03-5Upstream product

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