PAC Powder Specs & Bulk Supply | 28–30% Al₂O₃ · Vadodara

PAC is an inorganic polymer coagulant with the general formula [Al2(OH)nCl6-n]n, offering higher charge density than alum at lower dosing rates.

Hydrolysis of PAC releases polymeric aluminium species that neutralise negative charges on colloidal particles, enabling rapid floc formation.

Liquid PAC (10–18% Al2O3) and powder PAC (28–30% Al2O3) are both widely used; powder offers easier storage while liquid simplifies automated dosing.

PAC performs effectively across a broader pH range (6.5–8.5) compared to conventional alum, reducing lime or caustic correction requirements.

Municipal drinking water plants use PAC for raw water clarification, reducing turbidity to meet IS 10500 standards before filtration.

Textile, paper and dye-house ETPs rely on PAC as the primary coagulant in primary clarifiers before biological or tertiary treatment stages.

PAC is effective for colour removal from reactive and disperse dye effluents where conventional alum dosing fails to achieve CPCB discharge limits.

Swimming pool and recreational water systems occasionally use PAC for shock clarification of cloudy water alongside standard disinfection protocols.

Jar tests at site determine optimal PAC dose; typical ETP dosing ranges from 50–300 mg/L depending on TSS, COD and pH of influent.

Store liquid PAC in HDPE tanks away from direct sunlight; powder PAC requires dry, ventilated warehousing to prevent caking and moisture uptake.

Verify Al2O3 content, basicity and iron content on every COA — high iron levels can cause staining in paper and textile process water.

Choose a PAC supplier with consistent batch quality, bulk tanker delivery and technical support for jar testing and dose optimisation.

Drashti Chemicals stocks related industrial chemicals from Vadsar with batch COA, MSDS and GST invoicing (24AGLPC6288M1ZX). We are a supplier/stockist — share grade and quantity for a documented bulk quote. No public list prices.