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    Poly Aluminium Chloride Powder

    Al2(OH)nCl6-n
    CAS1327-41-9FormulaAl2(OH)nCl6-nSame-day Muscat · next-day Sohar, Salalah, DuqmSDS + CoA with every batch
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    Product Overview

    High-efficiency powder coagulant for municipal and industrial water treatment.

    Detailed Description

    Poly Aluminium Chloride powder is a concentrated form of PAC offering easy storage, handling, and dosing for water treatment applications. The powder form provides longer shelf life and reduced transportation costs. PAC powder (28–30% Al₂O₃) is the concentrated solid form of Poly Aluminium Chloride — offering significant logistical advantages over the liquid form for remote locations, island facilities, and situations where liquid chemical storage infrastructure is limited. The powder is dissolved on-site in water to prepare a dosing solution, typically at 2–5% concentration. In Oman, PAC powder is widely used at smaller water treatment plants in Oman's interior governorates (Al Dakhiliyah, Al Sharqiyah, Al Wusta), remote industrial facilities, desalination plant pre-treatment, and construction site water treatment. The powder's 2-year shelf life and lower transport cost per unit of active chemical make it economical for lower-volume users. Global Chemicals LLC supplies PAC powder in 25kg bags. Technical data sheets, dosage calculations, and jar test guidance available from our water treatment team.

    Also Known As:

    PAC powder, Polyaluminium chloride powder, PAC granules

    CAS Number:1327-41-9

    Applications & Uses

    Municipal water treatment
    Industrial water clarification
    Wastewater treatment
    Paper and pulp industry
    Mining wastewater treatment

    Technical Specifications

    Al2O3 content
    28-30%
    Basicity
    40-90%
    Water insoluble
    <0.6%
    Appearance
    White to yellow powder
    Shelf life
    2 years

    Frequently Asked Questions — Poly Aluminium Chloride Powder

    PAC powder is a primary coagulant used in water and wastewater treatment to remove suspended solids, turbidity, colour, and colloids. When dissolved and dosed into raw water, PAC releases aluminium hydroxide species that neutralise the negative charge of suspended particles, causing them to aggregate into settleable floc. In Oman, PAC powder is the coagulant of choice for smaller water treatment plants in interior governorates, remote desalination pre-treatment systems, and construction site water treatment where liquid PAC storage is impractical. It is also used in PAEW municipal plants and industrial effluent treatment operations across Muscat, Sohar, and Salalah.

    Typical PAC powder dosage ranges from 10–50 mg/L of raw water depending on the turbidity, temperature, and source water chemistry. For Oman's groundwater supplies (often moderate turbidity, 10–50 NTU), an effective dose is typically 15–30 mg/L as powder. High-turbidity surface water or seasonal floodwater (which can exceed 500 NTU in Oman's wadi floods) may require 40–80 mg/L. Jar testing is always recommended to establish the optimum dose for specific water conditions. Global Chemicals LLC provides jar test support and dosage calculations as part of our technical service to water treatment customers across Oman.

    PAC powder outperforms liquid alum in three key areas: it requires 30–50% lower dosage by weight of active aluminium oxide, it works effectively across a wider pH range (5.5–8.5 vs. alum's narrower 6.0–7.5), and it produces less sludge volume. PAC also has lower alkalinity consumption, meaning treated water pH drops less with PAC dosing — important in Oman's low-alkalinity desalinated water systems. In cool conditions (Oman's winter months, water at 15–20°C), PAC forms floc faster than alum. The trade-off is that PAC powder costs more per kilogram than alum, but the lower effective dose typically makes it more economical overall.

    Global Chemicals LLC supplies PAC powder (28–30% Al₂O₃) in 25kg polypropylene bags for standard industrial and municipal water treatment customers. Pallet quantities (40 bags per pallet, 1,000 kg) are available for larger accounts with warehousing space. The powder has a shelf life of 24 months in sealed, dry storage conditions — a significant advantage over PAC liquid (6–12 months shelf life) for remote locations and projects with infrequent supply. Custom pack sizes may be available for specific project requirements. Delivery is available to all Oman governorates including interior regions (Al Dakhiliyah, Al Sharqiyah, Al Wusta) and Dhofar.
    ISO 9001 Certified Fast Delivery Oman & GCC Export

    Comparing grades, pack sizes and delivery options? PAC (poly aluminium chloride) in Oman — dosing, jar testing and selection

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