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    Poly Aluminium Chloride Liquid

    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

    Advanced liquid coagulant for superior water clarification.

    Detailed Description

    Buy Poly Aluminium Chloride (PAC) liquid in Oman from Global Chemicals LLC. PAC is the leading coagulant for water treatment plants in Muscat, Sohar, and Salalah. Our high-quality PAC ensures optimal water clarification for drinking water treatment, wastewater treatment, and industrial effluent treatment. Available in bulk quantities with technical support. Poly Aluminium Chloride (PAC) liquid is the number one water treatment chemical in Oman — used by PAEW in municipal water treatment plants at Ghubrah, Barka, Sohar, and Salalah, and in hundreds of industrial water treatment systems across the country. PAC outperforms traditional alum (aluminium sulphate) due to its higher charge density, lower dosage requirement (typically 30–50% less than alum by weight), wider effective pH range (5.5–8.5), faster floc formation, and lower aluminium residual in treated water. Global Chemicals LLC is one of Oman's leading PAC suppliers — stocking PAC liquid (10–11% Al₂O₃, 40–90% basicity) in bulk IBC tanks for continuous supply to major treatment plants. We provide jar test support, dosage optimisation, and technical consultation. Supply to all Oman governorates; export to UAE, Saudi Arabia, and GCC on request.

    Also Known As:

    PAC, Polyaluminium chloride, Aluminium chlorohydrate, PAC liquid

    CAS Number:1327-41-9

    Applications & Uses

    Drinking water treatment plants
    Wastewater treatment facilities
    Industrial effluent treatment
    Swimming pool water treatment
    Paper manufacturing
    Textile industry wastewater

    Technical Specifications

    Al2O3 content
    10-11%
    Basicity
    40-90%
    pH (1% aqueous solution)
    3.5-5.0
    Appearance
    Clear to light yellow liquid
    Effective pH range
    5.0-9.0

    Frequently Asked Questions — Poly Aluminium Chloride Liquid

    PAC liquid (Poly Aluminium Chloride, 10–11% Al₂O₃) is a pre-dissolved, ready-to-dose coagulant solution, while PAC powder (28–30% Al₂O₃) is a concentrated solid that must be dissolved on-site before dosing. Liquid PAC is preferred for automated dosing systems in large municipal water treatment plants — including PAEW-operated plants in Muscat, Barka, Sohar, and Salalah — because it can be pumped directly from bulk storage tanks via metering pumps without any dissolution step. The liquid form also provides more consistent dosing accuracy. PAC powder is preferred where liquid storage is impractical, such as remote sites or smaller operations with infrequent deliveries.

    Typical PAC liquid dosing rates range from 10–50 mg/L expressed as product (equivalent to 1–5 mg/L as Al₂O₃). For moderate-turbidity raw water (20–100 NTU) in Oman's groundwater and surface water treatment systems, effective doses are usually 15–30 mg/L of product. Industrial wastewater with high suspended solids or emulsified oil may require 50–150 mg/L. The optimum dose is determined by jar testing. Global Chemicals LLC provides jar test support and dosage optimisation as a standard technical service. Dosing is carried out using chemical metering pumps (peristaltic or diaphragm type) sized to the plant flow rate and expected dosage range.

    Yes. PAC liquid is widely used as a coagulant in the pre-treatment stage of seawater reverse osmosis (SWRO) plants in Oman, including the large plants at Ghubrah, Barka, and Sohar that supply Muscat's municipal water. In SWRO pre-treatment, PAC is dosed into the raw seawater ahead of pressure media filtration (sand/anthracite) or ultrafiltration (UF) membranes to remove suspended solids, algal cells, and colloidal matter that would otherwise foul the RO membranes. PAC doses in SWRO pre-treatment are typically low (2–10 mg/L product) to avoid residual aluminium carry-over to the membranes. NSF/ANSI 60 certified grades are required for drinking water applications.

    PAC liquid should be stored in shaded, covered HDPE or FRP tanks away from direct sunlight to minimise temperature-driven degradation. In Oman's summer conditions (ambient temperatures up to 45°C), exposed tanks can reach 50–55°C, accelerating hydrolysis and basicity shift in the PAC solution, which reduces coagulation performance. Ideal storage temperature is below 35°C. Shelf life is typically 6–12 months from manufacture in correct storage conditions. PAC liquid must not be stored near alkalis (caustic soda, lime) as mixing causes immediate precipitation. Global Chemicals LLC supplies PAC liquid with manufacture date and Al₂O₃ assay certificate, and can advise on tank sizing and storage arrangements.
    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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