Poly Aluminium Chloride (PAC) is an inorganic polymer-based coagulant used for water and wastewater treatment. It appears as a yellow or pale yellow powder or liquid, depending on the formulation. Known for its high efficiency in removing suspended solids, turbidity, and heavy metals, PAC is preferred over traditional alum due to reduced sludge generation and broader pH tolerance.
Chemical Formula: [Al₂(OH)ₙCl₆₋ₙ]
CAS Number: 1327-41-9
Appearance: Yellow to pale yellow powder or clear liquid
Molecular Weight: ~174.45 g/mol (depends on formulation)
Solubility: Completely soluble in water
pH (1% solution): 3.5–5.0
Basicity: Typically 40–70%
Packaging Options:
Golden Chemical Agency supplies Poly Aluminium Chloride in various packaging forms suitable for industrial and municipal requirements:
25 kg HDPE bags (powder form)
200-liter HDPE drums (liquid form)
IBC tanks and bulk tankers for large-scale operations
Applications:
Water Treatment:
Used in municipal and industrial water treatment plants for coagulation and removal of turbidity, algae, and heavy metals.
Paper Industry:
Acts as a sizing agent to improve the strength and printability of paper.
Textile Industry:
Used in dyeing and printing processes for color fixation.
Mining & Tannery Waste Treatment:
Removes heavy metals and organic contaminants from process water.
Cosmetic and Personal Care Products:
Used in limited quantities in formulations requiring mild coagulants.