Vinylacetate-rectificate is a product of vapor-phase reaction of acetylene and acetic acid, used for obtaining of polyvinyl acetate, copolymers with vinyl chlorides, ethylene and other unsaturated compounds.
Main technical characteristics
|Main specifications||Normal values for the grade|
|Top quality||1st quality||Top quality||1st quality|
|Appearance||Liquid is not distinguished on color and transparences from distilled water and free of suspended particles|
|Density, at 20°C, g/cm³||0.932 – 0.936|
|Distillation volume at 71.8 – 730С, %, no less than||97||97||97||97|
|Mass fraction of vinyl acetate, %, no less than||99.9||99.85||99.9||99.85|
|Mass fraction of acetic aldehyde, %, no more than||0.025||0.035||0.045||0.060|
|Mass fraction of croton aldehyde, %, no more than||None|
|Mass fraction of acid on acetic acid basis % no more than||0.005||0.006||0.006||0.008|
|Mass fraction of divinylacetylene, %, no more than||0.0002||0.0003||–||–|
|Mass fraction of water, %, no more than||0.05||0.07||0.05||0.07|
|Mass fraction of hydroquinone, %, no more than|
|a. Before inhibition||0.0003||0.0005||–||–|
|b. After inhibition||0.005||0.005||0.005||0.005|
|Mass fraction of polyvinyl acetate||None|
|Du pont Polymerization activity at 0.1 MPa, in minutes, no more than||22||29||30||35|
|Molar viscosity of polyvinyl acetate in benzyl, Pa*с, no less than||0.035||0.030||–||–|
|Termostability of polyvinyl acetate at 150°С on the scale, no more than||1||3||–||–|
|Mass fraction of iron, %, not more than||0.00025||0.00025||0.00025||0.00025|
Vinylacetate-rectificate – flammable and explosive liquid. Acetic acid, acetaldehyde and acetone contained in vinylacetate as admixtures irritate conjunctiva and upper air passages.
Vinylacetate-rectificate is transported in rail tank cars by railroad, automobile trucks and in vessels by sea.
Shelf life – 3 months from the date of production.