Vinyl Acetate Monomer EVA Grade HQ 14-17 · inhibitor 14-17 ppm
For copolymer plants producing hot-melt and film grades, where the feed arrives by sea and the line runs continuously. The band is chosen so that a delivered lot can wait for its slot in the production plan without the plant having to treat the arrival date as the start of a countdown it cannot control.
Typical values, not for specification. Batch certificate governs delivery.
| VA purity | 99.9 wt% min (typical) |
|---|---|
| Water | 200 ppm max (typical) |
| Chemical name | Vinyl Acetate Monomer (VAM) |
| CAS / EINECS | 108-05-4 / 203-545-4 |
| Formula / MW | C4H6O2 / 86.09 |
| Appearance | Clear, colourless liquid, free of suspended matter |
| Acidity as acetic acid | ≤ 50 ppm (typical) |
| Acetaldehyde | ≤ 50 ppm (typical) |
| Methyl acetate | ≤ 50 ppm (typical) |
| Ethyl acetate | ≤ 250 ppm (typical) |
| Colour | ≤ 5 Pt-Co (typical) |
| Distillation range @760 mmHg | 72.3 – 73.1 °C |
| Density @20/20 °C | 0.9320 – 0.9345 g/cm³ |
|---|---|
| Boiling point | 72.7 °C |
| Melting point | − 93.2 °C |
| Flash point (closed cup) | − 8 °C |
| Autoignition temperature | 385 – 427 °C (source dependent) |
| Explosive limits in air | 2.6 – 13.4 vol% |
| Vapour pressure @20 °C | 11.7 kPa |
| Vapour density (air = 1) | 3.0 |
| Solubility in water @20 °C | ≈ 2 g/100 mL |
| Refractive index n20/D | 1.395 |
| Inhibitor (hydroquinone, HQ) | 14-17 ppm |
| Storage stability | Depends on temperature, oxygen availability and inhibitor consumption; periodic HQ and polymer re-test recommended |
Adhesive and film copolymers are sold on how they melt and how they flex. This section links the grade choice to those two properties and to the schedule a sea-fed plant actually runs.
Adhesive and film copolymers sit in different acetate ranges, and each range brings its own softening behaviour. Deciding the target range first keeps the feed specification and the product specification aligned instead of being reconciled after a batch is off-target.
Higher acetate content lowers crystallinity and widens the processing window, which changes how the resin behaves in an extruder or a melt kettle. The plant that understands its own window can absorb a small feed variation; the plant that runs at the edge cannot.
Plan the production slot against the vessel arrival rather than against the purchase order date. A sea-fed plant that schedules on paperwork will always be either waiting for material or storing it longer than intended.
Stainless steel or aluminium only. Confirm the headspace practice against documented supplier guidance instead of assuming a nitrogen blanket is protective.
Hold at least one voyage of cover so that a delayed sailing does not stop a continuous line. Buffer sized below one voyage is a plan that works only when nothing goes wrong.
Analyse on discharge and again at the feed point. Comparing the two shows what the plant storage did, which is the only part of the chain under the plant own control.
Rotate lots by arrival date and avoid topping a part-full tank with a newer lot. Topping mixes two ages and makes every later sample ambiguous.
Ventilate, bond and earth, dedicate hoses and keep ignition sources away. Sea-fed plants handle large volumes, and large volumes mean more transfer events.
Each route below links to the application map for the full grade set.
Copolymers for packaging and hygiene adhesives
Film resins specified by flexibility
Continuous trains on sea-fed sites
Resilient compounds for moulded parts
Every export lot ships with a batch certificate of analysis.
Compare the inhibitor band, storage window and delivery form side by side.
Technical, knowledge and commercial notes written for this product line.
Send your required volume, delivery form and site for Celanese VAM EVA Grade HQ 14-17; we reply with the matching grade, the batch documentation and the shipping window.
+8615380400285
sales2@liwei-chem.com
+8615380400285
Fred Wang
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