Plan a trial for your application
Powdered PAC for industrial water
Check raw water pH, alkalinity, turbidity and temperature. Compare powder dissolution, settling time and treated-water turbidity.
Liquid PAC metering evaluation
Provide tank, piping and metering pump details. Confirm liquid grade availability, active concentration and density before calculating volumetric pump delivery.
Drinking-water end-use review
Identify the project market and water plant acceptance criteria. Check intended-use documents, limited impurities and residual aluminum after treatment.
Purchase specifications and incoming inspection
The ENVO data apply to yellow solid powder. A liquid quotation should include concentration, density, measurement temperature and a COA for the offered grade. ENVO PAC · Yellow PAC powder specifications and packaging ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Alumina (Al₂O₃) | Mass fraction | ≥ 29% | Ask whether the COA uses an as-supplied or dry basis. Convert to the same basis before comparing prices per tonne. |
| Basicity | % | 40.0–90.0 | Check the offered grade’s method and range. Use site water to screen grades within a broad catalogue range. |
| Insoluble matter | Mass fraction | ≤ 0.6% | Match dissolution, filtration and weighing procedures, and check the preparation tank for visible residue. |
| pH | Dimensionless | 3.5–5.0 | The published value is for a 1% aqueous solution. Do not compare it directly with the pH of undiluted product. |
When approving a sample, record the grade, methods, limits and specification revision. On receipt, match the packing lot number to the lot-specific COA and record the measured values and release decision.
From samples to commercial delivery
Solid and liquid packaging
Published powder packaging is a 25 kg plastic inner bag in a woven polypropylene outer bag. For liquid orders confirm container material, connections, unloading equipment and return arrangements.
Receiving and storage
Inspect the outer bag, liner and moisture-related caking. The published powder sheet lists 24 months of shelf life; agree storage conditions in the contract. For liquids verify lot, concentration and receiving tank capacity.
Minimum order and delivery
Ask separately for minimum quantities for samples, full pallets of powder and liquid shipments. Clarify net weight, dispatch point, price and freight basis, lead-time start, dispatch date and arrival at the plant.
Questions from the plant
How can we compare quotations for two concentrations?
For delivered tonne prices and as-received assays, cost per tonne of Al₂O₃ equals product price per tonne divided by the Al₂O₃ mass fraction. Then compare chemical cost per tonne of water at the same treatment target.
Why do large flocs in a jar test fail to predict stable plant effluent?
Run a dose series at the same raw water, temperature, mixing and settling times. Record turbidity, pH and residual aluminium, then check plant mixing, dosing accuracy and filtration.
Report a delivery or batch issue
Provide the purchase order number and package lot number, plus water sample conditions, dosage and test records for the affected and reference batches.
Request documents for your application
TDS · Technical data sheet
For grade selection and sample approval, specify the grade and revision required.
SDS · Safety data sheet
Specify the country or region of use and the required language.
COA · Certificate of analysis
Request a sample COA during supplier review. For incoming inspection, provide the actual lot number.