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Disilene (also known as disilaethylene, disilylene, or silicon hydride (Si2H4)) is a silicon analogue of ethylene (C2H4) featuring a Si=Si double bond. It is a reactive, low-stability compound that has been studied primarily in matrix isolation or under cryogenic conditions due to its tendency to polymerize or decompose. The Si=Si bond is weaker and longer than a C=C bond, reflecting the lower tendency of silicon to form π-bonds compared to carbon. Disilene exhibits trans-bent geometry rather than planar, further distinguishing it from ethylene. Its reactivity includes addition reactions with small molecules, making it of interest in organosilicon chemistry and materials science.

15435-77-5

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Basic information
1. Product Name: disilene
2. Synonyms: Disilene
3. CAS NO:15435-77-5
4. Molecular Formula: H₄Si₂
5. Molecular Weight: 60.2028
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: disilene(CAS DataBase Reference)
10. NIST Chemistry Reference: disilene(15435-77-5)
11. EPA Substance Registry System: disilene(15435-77-5)
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: 15435-77-5(Hazardous Substances Data)

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15435-77-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15435-77-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,4,3 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 15435-77:
(7*1)+(6*5)+(5*4)+(4*3)+(3*5)+(2*7)+(1*7)=105
105 % 10 = 5
So 15435-77-5 is a valid CAS Registry Number.

15435-77-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name	silylidenesilane

1.2 Other means of identification

Product number	-
Other names	Disilaethylene

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:15435-77-5 SDS

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