Technical specifications
Model options for drinking-water powder. Content ranges describe different models; confirm the guarantee and test conditions for the selected model.
White powder
| Parameter | White powder |
|---|---|
| Al₂O₃ content | 28–30% grades; minimum by model |
| Basicity | 40–60% |
| Water-insoluble matter | ≤0.4% |
| pH (1% solution) | 3.5–5.0 |
| Iron (Fe) | ≤0.05% |
| Arsenic (As) | ≤0.0005% |
| Lead (Pb) | ≤0.001% |
| Cadmium (Cd) | ≤0.0002% |
| Mercury (Hg) | ≤0.00005% |
| Chromium (Cr) | ≤0.0005% |
Light yellow powder specifications
| Parameter | Light yellow powder |
|---|---|
| Al₂O₃ content | 28–30% grades; minimum by model |
| Basicity | 60–80% |
| Water-insoluble matter | ≤0.4% |
| pH (1% solution) | 3.5–5.0 |
| Iron (Fe) | ≤0.2% |
| Arsenic (As) | ≤0.0005% |
| Lead (Pb) | ≤0.001% |
| Cadmium (Cd) | ≤0.0002% |
| Mercury (Hg) | ≤0.00005% |
| Chromium (Cr) | ≤0.0005% |
These are drinking-water treatment grades. Confirm the exact model and documentation for the intended market; colour alone does not identify Al₂O₃ content.
Compare the two powder specifications.
1. Review white and light yellow models separately: the published basicity and iron limits differ. Colour alone does not establish the grade.
2. Provide the source-water data, treatment objective, destination market and required model documents.
3. Evaluate the proposed grade in a jar test, then agree the Al₂O₃ guarantee, test conditions and working dosage for your water.
Drinking-water and process-water treatment
Model options can be reviewed for municipal and rural drinking-water supply and food or beverage process-water treatment. Specify the intended use and destination so the corresponding product documents and applicable requirements can be checked.
Packaging & storage
25 kg moisture-resistant bags. Agree the model identification, pack material, label and pallet arrangement for the destination.
Keep powder dry and tightly sealed, protected from humidity and direct sunlight.
Sample availability, quantity and buyer-paid international courier charges are agreed before dispatch.
Model documents
Request documents for the selected model and test conditions. A representative COA supports evaluation; the supplied lot’s COA records its tested results.
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