Polyaluminum Chloride (PAC) is a versatile coagulant, but its usefulness may vary considerably based on the specific quality preferred plus the meant application. Knowing the variations between the common PAC grades—white powder, yellow powder, and yellow-brown powder—is very important for optimizing h2o treatment method processes and reaching the desired results, https://www.pac-pfs.com/product/drinking-grade-polyaluminium-chloride.html