Poly Aluminium Chloride (PAC) Supplier — Vadodara, Gujarat

Poly Aluminium Chloride (PAC, CAS 1327-41-9) from Drashti Chemicals Vadodara is a pre-hydrolysed inorganic polymer coagulant — formula [Al₂(OH)ₙCl₆₋ₙ]ₙ — supplied as powder (~28–30% Al₂O₃) and liquid (10–18% Al₂O₃). Basicity in the 40–70% range handles high-turbidity textile and dye-house influent without the sludge volume spike typical of alum at equivalent dose. Request COA showing Al₂O₃ content and basicity before locking your annual tender — batch consistency matters more than headline purity on the label.

Grade selection hinges on your raw-water alkalinity and target effluent TSS. Low-basicity PAC (30–40%) works when pH is already elevated; mid-basicity (45–55%) covers most Gujarat municipal and industrial mixed effluent. High-basicity PAC (60%+) suits cold-season operation and low-alkalinity streams where alum would demand excessive lime correction. Drashti stocks multiple basicity bands — share your jar-test data and we match the right powder grade rather than pushing a single SKU.

Dosing typically runs 50–200 mg/L as product for primary clarification, but jar tests on your actual composite sample remain mandatory. Dissolve powder PAC in a 2–5% stock solution using a dedicated day tank with mechanical agitation; undissolved lumps pass through screens and foul DAF nozzles. Meter the stock solution via diaphragm pump into the flash-mix zone — never dose dry powder directly into a pipeline. Drashti provides dosing guidance with every bulk dispatch.

Packaging: 25 kg laminated HDPE bags, 50 kg drums, and 1 MT jumbo bags for plants consuming above 5 MT/month. MOQ starts at one pallet; bulk quote on request for tanker-adjacent powder silo refill programs across Anand, Bharuch, and Vapi industrial belts. MSDS and COA ship with each lot. GST invoice under 24AGLPC6288M1ZX. Same-day dispatch from Vadodara warehouse for standing PO accounts.

Choose PAC powder over liquid alum when freight distance exceeds 200 km or when your storage area lacks bunded liquid tanks. PAC also wins against ferric chloride where colour removal is secondary and sludge disposal cost per kg is tracked — PAC sludge dewaters faster in belt presses common at Gujarat textile ETPs. Switch to ferric only when sulfide, phosphate, or heavy-metal precipitation is the primary objective alongside turbidity reduction.