Vinyl Acetate Monomer HQ 12-15 · inhibitor 12-15 ppm
A mid-high band sized for voyages of four to six weeks that cross the equator in either direction. It is specified where the receiving port is far enough away that the material will experience a genuine hot leg, and where the buyer wants a documented voyage record rather than an assumption about conditions on board.
Typical values, not for specification. Batch certificate governs delivery.
| 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 |
| VA purity | ≥ 99.9 wt% (typical) |
| Water | ≤ 200 ppm (0.02 wt%, typical) |
| 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) | 12-15 ppm |
| Storage stability | Depends on temperature, oxygen availability and inhibitor consumption; periodic HQ and polymer re-test recommended |
A voyage is a storage period with no supervision. This section sets out what the crossing does to the product and which records make the arrival result interpretable.
Load freshly produced material and avoid a long wait at the terminal before departure. Time spent on the quay counts against the same working window as time at sea, and it is usually the part of the journey nobody records.
Accept that a voyage crossing the equator will see elevated temperatures for days. The inhibitor band is chosen to absorb that; the useful precaution is to avoid stowing containers against a hot bulkhead or in the sunniest bay on deck.
Sample as soon as the container is opened and compare the result with the loading analysis. Testing a week after arrival confounds the voyage with the port, and the port is where most of the avoidable exposure happens.
Stainless steel or aluminium only. Confirm the headspace practice against documented supplier guidance instead of assuming a nitrogen blanket is protective.
Record the loading date, the shore tank result and the container or tank number. Without the loading date the arrival result has no denominator and cannot be compared with any other shipment.
Ask for stowage away from engine room bulkheads and, where the option exists, for a shaded or below-deck position on container shipments.
Clear documentation in advance so that the container moves from quay to warehouse without a customs delay. Every extra day in the yard is a day at the hottest point of the whole route.
Transfer to a shaded tank promptly and avoid leaving the material in the ISO tank as permanent storage, since a tank on a hardstand is exposed in a way a proper tank farm is not.
Each route below links to the application map for the full grade set.
Export plants with long inbound routes
Binder lines distant from a supply point
Hydrolysis plants on ocean-supplied sites
Redispersible powder plants with sea intake
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 HQ 12-15; we reply with the matching grade, the batch documentation and the shipping window.
+8615380400285
sales2@liwei-chem.com
+8615380400285
Fred Wang
Scan to WhatsApp