CAS Number:1327‑41‑9
Synonyms:Polyaluminium chloride; Aluminium chlorohydrate; Basic aluminium chloride; PAC
General Formula: Alₙ(OH)ₘCl₃ₙ₋ₘ (typically m/n = 0.4–0.9)
Product Introduction
A yellowish, medium-viscosity liquid or powder used as a high-efficiency inorganic coagulant for water and wastewater treatment. It offers rapid floc formation, wide pH tolerance, and low dosing compared to alum.
| Feature | Powder/Pellets | Liquid (varied %) |
|---|---|---|
| Appearance | White to yellow/light yellow solid | Yellow to brownish liquid |
| Al₂O₃ Content | ≥28–30% | ≥10–18% |
| Basicity | 40–90% (OH/Cl ratio) | Similar |
| pH (1–10% aqueous) | ~3.5–5.0 | ~3.5–5.0 |
| Density (20 °C) | ≥1.15 g/cm³ | 1.19–1.41 g/cm³ |
| Insolubles | ≤0.3% | ≤0.2–0.3% |
| Solubility in water | Hydrolyzes to Al(OH)₃, flocculant action | Same |
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