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Colorless and transparent with high chemical activity. As a bulk basic chemical raw material, it is mainly applied in the production of polyvinyl alcohol, white latex, VAE emulsion, plastics, coatings, adhesives and other chemical products. It can be copolymerized with vinyl chloride, ethylene, acrylonitrile and other monomers to prepare various copolymers, which are widely used in the manufacture of films, floor materials, molded film products, binders and coatings. Copolymers with crotonic acid can be processed into film-forming agents, tackifiers, sizing agents, protective films and related products. Copolymers with maleic acid (anhydride) are adopted for the production of high-efficiency water quality stabilizers, scale inhibitors and other fine chemicals.
| Item | Brand Specification Indicators | ||
|---|---|---|---|
| Superior Grade | First Grade | Qualified Grade | |
| Appearance | Colorless and transparent, free of mechanical impurities | ||
| Purity, w/% ≥ | 99.90 | 99.80 | 99.80 |
| Color (Platinum-Cobalt)/Hazen No. ≤ | 5 | 10 | 15 |
| Density (20℃)/(g/cm³) | 0.931~0.933 | 0.930~0.934 | 0.930~0.934 |
| Activityª/s ≤ | 660 | 690 | 720 |
| Acidity (as acetic acid)/(mg/kg) ≤ | 40 | 50 | 50 |
| Water Content/(mg/kg) ≤ | 400 | 400 | 600 |
| Acetaldehyde/(mg/kg) ≤ | 40 | 60 | 90 |
| Crotonaldehyde/(mg/kg) ≤ | 5 | 10 | 15 |
| Total Organic Impuritiesᵇ/(mg/kg) ≤ | 600 | 1000 | 1500 |
| Aldehyde Content (as acetaldehyde)/(mg/kg) ≤ | 200 | 300 | 300 |
| Evaporation Residue/(mg/kg) ≤ | 50 | 100 | 100 |
| Boiling Rangeᶜ (0℃, 101.3kPa)/℃ ≤ | 1.0 | 1.5 | 2.0 |
| Benzene/(mg/kg) ≤ | 10 | / | / |
| Methyl Acetate/(mg/kg) | To be agreed by both parties | / | / |
| Ethyl Acetate/(mg/kg) | To be agreed by both parties | / | / |
| Polymerization Inhibitor (Hydroquinone)/(mg/kg) | To be agreed by both parties | ||
| ª: Value determined without addition of polymerization inhibitor. | |||
| ᵇ: Total organic impurities include acetaldehyde, acetone, crotonaldehyde, benzene, butynone, vinyl propionate, methyl acetate, ethyl acetate. | |||
| ᶜ: Temperature range 71.5℃ ~ 73.5℃, distillate volume above 98mL. | |||