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 

Yes

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..…

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

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.