METHYL VINYL CYCLICS

Methyl Vinyl Cyclics can be used in addition-curing silicone RTV or rubber formulations.
Methyl Vinyl Cyclics are very effective inhibitor for a platinum-catalyzed addition-curing two-part RTV.
Methyl Vinyl Cyclics may be used in formulating addition-curing silicone RTV or rubber formulations.

CAS Number: 2554-06-5 
EC Number: 219-863-1 
Molecular Formula: C₁₂H₂₄O₄Si₄ 
Molar Mass: ~344.66 g/mol

SYNONYMS:
CYCLOSILOXANES, Me vinyl, 1,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane, 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane, Methylvinyl cyclosiloxanes, Cyclic Vinylmethyl Dimethylsiloxanes, XL-119, UN1993, Methylvinyl cyclosiloxanes; 1,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane; 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane

Methyl Vinyl Cyclics are a clear liquid with very little odor.
Methyl Vinyl Cyclics, also known as methylvinyl cyclosiloxanes, are a group of organosilicon compounds characterized by a cyclic structure containing silicon-oxygen bonds.

Methyl Vinyl Cyclics are notable for their unique properties, such as thermal stability, hydrophobicity, and flexibility.
Methyl Vinyl Cyclics are a very unique silicone raw material useful in the synthesis or manufacturing of reactive siloxane polymers with random vinyl functionality on the backbone of the silicone polymer chain.

USES and APPLICATIONS of METHYL VINYL CYCLICS:
Key applications of Methyl Vinyl Cyclics: Adhesives & Sealants, Coatings, Industrial Chemicals, Lubricant & Grease, Personal Care & Cosmetics, and Resin & Rubber.
Methyl Vinyl Cyclics are used in the synthesis or manufacturing of reactive siloxane polymers with random vinyl functionality on the backbone of the silicone polymer chain.

Methyl Vinyl Cyclics can be used in addition-curing silicone RTV or rubber formulations.
Methyl Vinyl Cyclics are very effective inhibitor for a platinum-catalyzed addition-curing two-part RTV.
When used as an inhibitor, Methyl Vinyl Cyclics are normally added to the crosslinker part of the formulation.

Methyl Vinyl Cyclics's high boiling point and low evaporation rate provide an extremely stable working time at ambient temperatures of the formulated two-part RTV.
Methyl Vinyl Cyclics may be used in formulating addition-curing silicone RTV or rubber formulations.

Methyl Vinyl Cyclics are a very effective inhibitor for a platinum-catalyzed addition-curing Two-Part RTV.
When used as an inhibitor, Methyl Vinyl Cyclics are normally added to the crosslinker part of the formulation.
Methyl Vinyl Cyclics's high boiling point and low evaporation rate provide an extremely stable working time at ambient temperatures of the formulated Two-Part RTV.

MARKETS of METHYL VINYL CYCLICS:
*Coatings, Adhesives, Solvents, Elastomers
*Cosmetic / Personal Care
*Industrial Chemicals

PACKING AND STORAGE of METHYL VINYL CYCLICS:
In the unopened original container, Methyl Vinyl Cyclics have a shelf life of one year in a dry and cool place.
The reactivity of vinyl-functional polymers, Methyl Vinyl Cyclics, is utilized in two major regimes.
Vinyl-terminated polymers are employed in addition-cure systems.
The bond-forming chemistry is the platinum-catalyzed hydrosilylation reaction.

HYDROSILYLATION of METHYL VINYL CYCLICS:
Methyl Vinyl Cyclics and vinyl T-structure fluids are mostly employed in peroxide-activated cure systems.
These involve peroxide-induced free-radical coupling between vinyl and methyl groups.
Concomitant and subsequent reactions take place among methyl groups and between crosslink sites and methyl groups.
The initial crosslinking reaction is depicted in the corresponding chemical equation.

PHYSICAL and CHEMICAL PROPERTIES of METHYL VINYL CYCLICS:
Chemical Formula: C12H24O4Si4
Molecular Weight: 344.66 g/mol
CAS Number: 2554-06-5
EC Number: 219-863-1
Appearance: Colorless liquid
Melting Point: −44 °C
Boiling Point: 111–112 °C at 10 mmHg (low pressure); ~112 °C at atmospheric pressure
Density: 0.997 g/cm³
Refractive Index: 1.434
Flash Point: 102 °C
Purity: 97%
Applications: Silicone elastomers, adhesives, coatings, release agents, lubricants, cosmetics

FIRST AID MEASURES of METHYL VINYL CYCLICS:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation: 
Fresh air.
*In case of skin contact: 
Take off immediately all contaminated clothing. 
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact: 
Rinse out with plenty of water. 
Call in ophthalmologist. 
Remove contact lenses.
*If swallowed:
After swallowing: 
Immediately make victim drink water (two glasses at most). 
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of METHYL VINYL CYCLICS:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains. 
Collect, bind, and pump off spills. 
Observe possible material restrictions. 
Take up dry. 
Dispose of properly. 
Clean up affected area.

FIRE FIGHTING MEASURES of METHYL VINYL CYCLICS:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2) 
Foam 
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of METHYL VINYL CYCLICS:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection. 
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A 
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of METHYL VINYL CYCLICS:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed. 
Dry.

STABILITY and REACTIVITY of METHYL VINYL CYCLICS:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available