How Polyaluminium Chloride (PAC) Is Used in Water Treatment: Practical Application Guide

Polyaluminium Chloride (PAC) (聚合氯化铝) is one of the most widely specified industrial water plant treatment chemicals used across municipal and industrial facilities. As a PAC coagulant, it delivers reliable performance in the scenarios our customers ask about most: Purification of drinking water, domestic wastewater, various chemical wastewater, industrial production.

What Polyaluminium Chloride (PAC) Is and How It Works

Polyaluminium Chloride (PAC) is supplied as Golden yellow, earthy yellow, brown powder. Its molecular formula is Al2Cln(OH)6-n (CAS 1327-41-9). Because of this physical form it dissolves and disperses predictably, which makes dosing and process control straightforward for plant operators.

Primary Applications

Its key application areas include: Purification of drinking water, domestic wastewater, various chemical wastewater, industrial production. In practice this means PAC coagulant is selected for both routine maintenance and shock-treatment programs, depending on the water matrix and treatment goal.

• Process reliability: stable active content and consistent granule/tablet size improve dosing accuracy.
• Compatibility: works within existing dosing and storage setups common to industrial water plant treatment chemicals programs.
• Logistics: available in 25kg bag (inner plastic, outer PP woven), simplifying import and warehouse planning.

Why Buyers Choose This Grade

When specifying Polyaluminium Chloride (PAC), buyers typically compare active content, packaging and the applicable standard (GB/T 22627-2022). Selecting the right grade reduces consumption and protects downstream equipment.

Operators who also run complementary programs often pair this product with Calcium Chloride to cover the full treatment chain from clarification to disinfection.

Get a Quote

We supply Polyaluminium Chloride (PAC) in full container and mixed-pallet quantities with COA and MSDS for every lot. View the Polyaluminium Chloride (PAC) product page for specifications, packaging options and lead times.