1.Recommended product:
Product name:2,3-DIMETHYL-1,3-BUTADIENE
CAS:513-81-5
molecular formula:C6H10
molecular weight:82.14
Form: Liquid
Water solubility:Miscible with chloroform. Immiscible with water.
Production scale:1kg~1000kg
Uses:Used in the production of synthetic rubber and polymers.
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roduct name: |
2,3-DIMETHYL-1,3-BUTADIENE |
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CAS: |
513-81-5 |
|
molecular formula: |
C6H10 |
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molecular weight: |
82.14 |
|
Form: |
Liquid |
|
Color: |
Transparent and colorless |
|
Water solubility: |
Miscible with chloroform. Immiscible with water. |
|
Production scale: |
1kg~1000kg |
|
Uses: |
Used in the production of synthetic rubber and polymers. |
2.Appearance
colorless clear liquid
3Chemical property:
Colorless liquid. Melting point -76℃, boiling point 69.2℃ (102kPa), 68.8℃ (101.3kPa), relative density 0.7267 (20/4℃), refractive index 1.4380, flash point -22℃. It is soluble in organic solvents but insoluble in water. It can polymerize when heated or exposed to sunlight for a long time.
4.use:
Used in the manufacture of synthetic rubber and polymers.
5.production methodprocess:
It is obtained by catalytic dehydration of pinol (tetramethylethylene glycol) with hydrobromic acid. Slowly heat pinol and 48% hydrobromic acid, and collect the distillate until 95℃. The upper liquid is washed with water containing a small amount of hydroquinone, dried with anhydrous calcium chloride, and then fractionated to obtain the finished product.
