POLY(PHENYLSILSESQUIOXANE) is a polymer composed of phenylsilsesquioxane units, an organosilicon compound characterized by its excellent thermal and chemical resistance, high mechanical strength, and optical transparency.

70131-69-0

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Basic information
1. Product Name: POLY(PHENYLSILSESQUIOXANE)
2. Synonyms: POLY(PHENYLSILSESQUIOXANE);poly(phenylsilsesquioxane),100%phenyl;Silsesquioxanes,Ph;100%phenyl;Polysilsesquioxane resin;POLY(PHENYLSILSESQUIOXANE): 100% PHENYL, 4.5-6.5% OH;100% PHENYL, 4.5-6.5% OH;217 Flake
3. CAS NO:70131-69-0
4. Molecular Formula:
5. Molecular Weight: 0
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: >300°C
4. Appearance: /
5. Density: 1,56 g/cm3
6. Refractive Index: 1.56
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: POLY(PHENYLSILSESQUIOXANE)(CAS DataBase Reference)
10. NIST Chemistry Reference: POLY(PHENYLSILSESQUIOXANE)(70131-69-0)
11. EPA Substance Registry System: POLY(PHENYLSILSESQUIOXANE)(70131-69-0)
Safety Data
1. Hazard Codes: N/A
2. Statements: 36/37/38
3. Safety Statements: 26-36/37/39
4. WGK Germany:
5. RTECS:
6. TSCA: No
7. HazardClass: N/A
8. PackingGroup: N/A
9. Hazardous Substances Data: 70131-69-0(Hazardous Substances Data)

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70131-69-0 Usage

Uses

Used in Optical and Electronic Applications:
POLY(PHENYLSILSESQUIOXANE) is used as a material for optical and electronic components due to its optical transparency and stability.
Used in Protective Coating Industry:
POLY(PHENYLSILSESQUIOXANE) is used as a protective coating for various substrates because of its excellent adhesion and resistance to thermal and chemical degradation.
Used in Film-Forming Material Industry:
POLY(PHENYLSILSESQUIOXANE) is used as a film-forming material for its high mechanical strength and stability, making it suitable for applications requiring durable and robust films.
Used in Barrier Layer Applications:
POLY(PHENYLSILSESQUIOXANE) is used as a barrier layer in various industries to protect against environmental factors and chemical exposure, leveraging its high resistance to thermal and chemical degradation.

Check Digit Verification of cas no

The CAS Registry Mumber 70131-69-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,1,3 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70131-69:
(7*7)+(6*0)+(5*1)+(4*3)+(3*1)+(2*6)+(1*9)=90
90 % 10 = 0
So 70131-69-0 is a valid CAS Registry Number.

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