1,1,3,3-Tetramethyl-1,3-divinyldisilazane
- Product Name
- 1,1,3,3-Tetramethyl-1,3-divinyldisilazane
- CAS No.
- 7691-02-3
- Chemical Name
- 1,1,3,3-Tetramethyl-1,3-divinyldisilazane
- Synonyms
- DVTMDZ;DVTMDS;Vinyl silazane;Vinyl silazane 51001;Tetramethyldivinyldisilazane;Bis(vinyldimethylsilyl)amine; Tetramethyldivingldisilazane;Bis(diMethyl(vinyl)silyl)aMine;1,3-DIVINYLTETRAMETHYLDISILAZANE;1,3-DIVINYLTETRAMETHYLDISILAZANE DVTMDS
- CBNumber
- CB4105789
- Molecular Formula
- C8H19NSi2
- Formula Weight
- 185.41
- MOL File
- 7691-02-3.mol
1,1,3,3-Tetramethyl-1,3-divinyldisilazane Property
- Melting point:
- <0°C
- Boiling point:
- 161-163 °C
- Density
- 0.819
- vapor pressure
- 1.2-8611hPa at 20-25℃
- refractive index
- n20/D 1.4405(lit.)
- Flash point:
- 34°C
- storage temp.
- 2-8°C
- solubility
- soluble in Methanol
- form
- clear liquid
- pka
- 10.77±0.70(Predicted)
- color
- Colorless to Light yellow to Light orange
- Specific Gravity
- 0.819
- Water Solubility
- Hydrolyzes in water.
- Hydrolytic Sensitivity
- 7: reacts slowly with moisture/water
- Sensitive
- Moisture Sensitive
- BRN
- 2411661
- InChIKey
- WYUIWUCVZCRTRH-UHFFFAOYSA-N
- LogP
- 0.23-1.5 at 20℃
- CAS DataBase Reference
- 7691-02-3(CAS DataBase Reference)
- NIST Chemistry Reference
- Silanamine, 1-ethenyl-N-(ethenyldimethylsilyl)-1,1-dimethyl-(7691-02-3)
- EPA Substance Registry System
- Silanamine, 1-ethenyl-N-(ethenyldimethylsilyl)-1,1-dimethyl- (7691-02-3)
Safety
- Hazard Codes
- C
- Risk Statements
- 10-34-22
- Safety Statements
- 26-36/37/39-45-23
- RIDADR
- UN 2920 8/PG 2
- WGK Germany
- 3
- RTECS
- VV1302250
- F
- 10-21
- TSCA
- TSCA listed
- HazardClass
- 8
- PackingGroup
- II
- HS Code
- 29319090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H226Flammable liquid and vapour
H301Toxic if swalloed
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233Keep container tightly closed.
P240Ground/bond container and receiving equipment.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378In case of fire: Use … for extinction.
P403+P235Store in a well-ventilated place. Keep cool.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- D1769
- Product name
- 1,3-Divinyl-1,1,3,3-tetramethyldisilazane
- Purity
- >95.0%(GC)
- Packaging
- 5mL
- Price
- $29
- Updated
- 2026/03/19
- Product number
- D1769
- Product name
- 1,3-Divinyl-1,1,3,3-tetramethyldisilazane
- Purity
- >95.0%(GC)
- Packaging
- 25mL
- Price
- $70
- Updated
- 2026/03/19
- Product number
- T205785
- Product name
- 1,1,3,3-Tetramethyl-1,3-divinyldisilazane
- Packaging
- 250mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- ORS0005095
- Product name
- 1,3-DIVINYLTETRAMETHYLDISILAZANE
- Purity
- 95.00%
- Packaging
- 5G
- Price
- $128.15
- Updated
- 2021/12/16
- Product number
- 7388-1-00
- Product name
- Tetramethyldivinyldisilazane
- Packaging
- 5G
- Price
- $144
- Updated
- 2021/12/16
1,1,3,3-Tetramethyl-1,3-divinyldisilazane Chemical Properties,Usage,Production
Chemical Properties
Clear liquid with ammonia odor
Uses
1,1,3,3-Tetramethyl-1,3-divinyldisilazane is used for silicone rubber, silicone resin, silicone gel and vinyl manufacturing.
Application
1,1,3,3-Tetramethyl-1,3-divinyldisilazane, a vinylsilazane, could cross-linked with polyhydromethylsiloxane in the presence of Karstedt's catalyst. When the reactions were carried out in solvent-free conditions, non-porous polysiloxane-silazane networks were obtained[1].
Flammability and Explosibility
Flammable
Synthesis
Add 2 mol of dimethyl vinyl chlorsilane to the reactor, pass ammonia into it for the reaction, the amount of ammonia is controlled to be the molar ratio of dimethyl vinyl chlorsilane to ammonia 2:3.4, and 99% of the ammonia is passed in 2 hours,
A, control the reaction pressure to be 5 kg of NH3 pressure, the reaction is carried out at 130C, and the reaction time is 6h, and at the end of the reaction, add dichloroethane to dissolve the Product;
B, the above product will be added to the total amount of product mass of 0.05% of hydroquinone, tert-butyl catechol and copper naphthenate, at a temperature of 160-163 , 760 mmHg conditions for molecular distillation, to obtain colorless transparent liquid. The content of the product was 98.95% and the yield was 98%. The density of the tested product was 0.819g/cm3, ammonium chloride was 0, 1,1,3,3-tetramethyl-1,3-divinyl disilazane content was 0.1%.
Toxics Screening Level
The initial threshold screening level (ITSL) for tetramethyldivinyldisilzane (CASRN 7691-02-3) is 30 μg/m3 based on an annual averaging time.
References
[1] Justyna Olejarka . “Non-porous and porous materials prepared by cross-linking of polyhydromethylsiloxane with silazane compounds.” European Polymer Journal 99 (2018): Pages 150-164.
1,1,3,3-Tetramethyl-1,3-divinyldisilazane Preparation Products And Raw materials
Raw materials
Preparation Products
1,1,3,3-Tetramethyl-1,3-divinyldisilazane Suppliers
- Tel
- 19921372399
- sales03@newasiaman.com
- Country
- China
- ProdList
- 270
- Advantage
- 58
- Tel
- 18210857532; 18210857532
- Fax
- 86-10-82849933
- jkinfo@jkchemical.com
- Country
- China
- ProdList
- 96815
- Advantage
- 76
- Tel
- 4006356688 18621169109
- Fax
- 86-21-61259102
- market03@meryer.com
- Country
- China
- ProdList
- 40228
- Advantage
- 62
- Tel
- 400-6106006
- Fax
- 021-67582001/03/05
- saleschina@alfa-asia.com
- Country
- China
- ProdList
- 30123
- Advantage
- 84
- Tel
- 021-67121386
- Fax
- 021-67121385
- Sales-CN@TCIchemicals.com
- Country
- China
- ProdList
- 24529
- Advantage
- 81
- Tel
- 89508211 18501085097
- Fax
- 010-89508210
- sales.bj@hwrkchemical.com
- Country
- China
- ProdList
- 9416
- Advantage
- 55
- Tel
- 021-021-58432009 400-005-6266
- Fax
- 021-58436166
- sales8178@energy-chemical.com
- Country
- China
- ProdList
- 44802
- Advantage
- 61
- Tel
- 021-54306202 13764082696
- info@hanhongsci.com
- Country
- China
- ProdList
- 42934
- Advantage
- 64
- Tel
- 86-0571-85151182
- Fax
- 86-0571-85151182
- Country
- China
- ProdList
- 5691
- Advantage
- 66
- Tel
- 010-82954736 13391601435
- sales@isomersyn.com
- Country
- China
- ProdList
- 3295
- Advantage
- 57
View Lastest Price from 1,1,3,3-Tetramethyl-1,3-divinyldisilazane manufacturers
- Product
- 1,3-Divinyl-1,1,3,3-Tetramethyl Disilazane 7691-02-3
- Price
- US $1.10-9.90/kg
- Min. Order
- 1kg
- Purity
- 99%min
- Supply Ability
- 100kg
- Release date
- 2025-08-18
- Product
- 1,3-Divinyl-1,1,3,3-tetramethyldisilazane 7691-02-3
- Price
- US $0.00/kg
- Min. Order
- 0.10000000149011612kg
- Purity
- 96%
- Supply Ability
- 200tons
- Release date
- 2024-12-17
- Product
- 1,1,3,3-TETRAMETHYL-1,3-DIVINYLDISILAZANE 7691-02-3
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-10-31