Polyaluminium Chloride (PAC, Aluminum Chlorohydrate, Polybasic Aluminum Chloride) CAS 1327-41-9

Polyaluminum chloride (PAC) is the most widely used inorganic polymeric flocculant in the water treatment field, renowned for its high-efficiency flocculation, wide pH adaptability range (4-12), low dosage, and low treatment cost.

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Product Description

Compared with traditional coagulants (aluminum sulfate, alum, etc.), PAC has significant advantages such as large flocs, rapid settling, low effluent turbidity, and low residual aluminum content, making it an ideal choice for drinking water purification and industrial wastewater treatment. The product is available in three forms: spray-dried, drum-dried, and liquid, as well as drinking water grade and industrial grade, meeting the needs of different water treatment scenarios. The product strictly complies with national standards such as GB/T 22627-2022 and GB 15892-2020, supports small-batch trial orders and customized packaging, and relies on major ports such as Qingdao Port, Tianjin Port, and Shanghai Port for efficient and worry-free export. For liquid PAC transportation, UN1760 compliance documents must be confirmed in advance.

Product Information

temDescription
Product NamePolyaluminium Chloride (PAC, Aluminum Chlorohydrate)
CAS No.1327-41-9
EINECS No.215-477-2
Molecular Formula[Al₂(OH)nCl₆₋ₙ]ₘ (n=1-5, m≤10)
AppearanceLight yellow to brown solid powder/granules (spray-dried: white to light yellow fine powder); colorless to yellowish-brown liquid
Main TypesBy Form: Spray-Dried (White/Off-White Powder) : Fast dissolution, good flocculation effect, low impurities. For drinking water treatment, precision manufacturing, high-turbidity water, food industry. Drum-Dried (Yellowish-Brown Granules/Powder) : Lower cost, for general industrial wastewater treatment. Liquid PAC: Concentration 10%-18% (as Al₂O₃), ready to use. For large-scale water plant automated dosing, emergency treatment, small treatment facilities.
By Application Grade: Drinking Water Grade (High-Purity White/Food Grade) : Strict heavy metal control (As≤0.0002%, Pb≤0.001%). For drinking water purification, food industry water treatment. Industrial Grade (Light Yellow) : For industrial wastewater treatment (textile, paper, electroplating, chemical, pharmaceutical, coal washing, metallurgy), municipal wastewater, industrial circulating water.
Key SpecificationsAl₂O₃ Content: Liquid ≥10.0%, Solid ≥28.0% (GB/T 22627-2022), high-purity grade up to 30%-32%.
Basicity: 40%-90% (drinking water grade 40%-60%, industrial grade 70%-90%).
pH (1% solution) : 3.5-5.0.
Water Insolubles: Solid ≤0.6% (drinking water grade ≤0.3%).
Heavy Metal Limits (Drinking Water Grade, GB 15892-2020) : As≤0.0002%, Pb≤0.001%, Cd≤0.0002%, Hg≤0.00001%, Cr≤0.0005%.
Physical PropertiesDensity (liquid): 1.10-1.30 g/cm³; Bulk Density (solid): 0.6-0.9 g/cm³; Easily soluble in water, acidic solution; good adsorption, coagulation and sedimentation performance.
FeaturesWide adaptability to water conditions; fast hydrolysis; rapid floc formation with large dense flocs; low effluent turbidity; wide pH range (4-12, optimum 6-8); effective removal of heavy metals (arsenic, mercury, etc.); low dosage, low treatment cost; superior alternative to traditional coagulants (aluminum sulfate, alum).
Main ApplicationsDrinking Water Treatment: removal of turbidity, color, suspended solids and heavy metals. Municipal Wastewater: urban sewage treatment, sludge dewatering. Industrial Wastewater: textile, paper, electroplating, leather, chemical, pharmaceutical, brewing, coal washing, metallurgy, food processing industries. Industrial Water Treatment: cooling water, oilfield injection water. Others: paper sizing, precision casting hardener, cosmetic raw material, catalyst carrier, sugar decolorization, pharmaceutical excipient.
PackagingSolid: 25kg woven bags (PE liner), 500kg/1000kg jumbo bags; Liquid: 25kg drums, 200L plastic drums, 1000L IBC totes, tank trucks; custom packaging available.
Storage ConditionsStore in cool, dry, well-ventilated area; keep sealed; protect from moisture; away from alkaline substances; shelf life: 12 months (solid) / 6 months (liquid).
Shipping RequirementsSolid: Non-hazardous cargo; Liquid: Class 8 corrosive under certain transport conditions (UN1760), confirm classification and complete compliance declaration before shipment; protect from moisture and rain; handle with care.
Quality StandardsIndustrial Grade: GB/T 22627-2022; Drinking Water Grade: GB 15892-2020; Export reference: AWWA B408-18, NSF/ANSI 60, EN 883.


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FAQ

Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


Q2: How is the security of my transaction guaranteed when working with Huafeng Chemical?
A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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