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Poly Aluminium Chloride (PAC) is a highly efficient coagulant used in water treatment processes. It is known for its ability to remove suspended solids, organic matter, and other impurities from…
CAS Number
1327-41-9
HS Code
28.27.32
INCI Name
Poly Aluminium Chloride
Molecular Formula
Aln(OH)mCl(3n-m)
Poly Aluminium Chloride (PAC) is a highly efficient coagulant used in water treatment processes. It is known for its ability to remove suspended solids, organic matter, and other impurities from water, making it ideal for both drinking water and wastewater treatment. PAC is…
CAS Number
1327-41-9
INCI Name
Poly Aluminium Chloride
HS Code
28.27.32
Molecular Formula
Aln(OH)mCl(3n-m)
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| Property | Specification |
|---|---|
| Appearance | White to light yellow powder or granules. |
| Odor | Odorless. Little or no odour. |
| Molecular Weight | 174.45 g/mol (for Al2Cl(OH)5). |
| Density / Specific Gravity | 1.15-1.20 g/cm³ (Liquid Form). |
| Ph (1% Aqueous Solution) | 3.5–5.0. |
| Assay / Purity (As Al₂O₃) | ≥ 30%. |
| Property | Specification |
|---|---|
| Ionic Nature | Cationic polymer. |
| Incompatibilities | Avoid contact with bases, chlorides, sulphites, hypochlorites. Long term contact with aluminum & alloys, zinc & alloys, carbon & steel. |
| Hazardous Reactions / Decomposition Products | On burning will emit fumes. Hazardous Decomposition Products: Hydrogen chloride. |
| Property | Specification |
|---|---|
| Melting Point | Not applicable. |
| Boiling Point | Not applicable. |
| Flash Point | Not pertinent / Non-flammable. |
| Thermal Stability | Stable at normal temperature & pressure. May become unstable when stored for a long time at temperatures higher than 40°C. |
| Application | Recommended / Max Dosage |
|---|---|
| Drinking / Domestic Water Treatment | 2.5–25 kg per 1,000 tons of water (2.5 - 25 ppm). |
| Industrial Water Treatment | 2.5–25 kg per 1,000 tons of water (2.5 - 25 ppm). |
| Municipal Wastewater Treatment | 15–50 kg per 1,000 tons of water (15 - 50 ppm). |
| Papermaking (Packaging/Board) | 1.5–4.0 kg per ton of dry fiber. |
| Dyeing Wastewater Treatment | 100–300 kg per 1,000 tons of water (100 - 300 ppm). |
| Leather Wastewater Treatment | 100–300 kg per 1,000 tons of water (100 - 300 ppm). |
| Food Processing Wastewater | 50–150 kg per 1,000 tons of water (50 - 150 ppm). |
| Swimming Pool Circulation (Liquid PAC) | 0.1 ml/m³ of the circulation flow. |
Poly aluminium chloride (PAC) is the most widely used inorganic polymer coagulant in modern water and wastewater treatment. Unlike traditional aluminium sulphate (alum), PAC forms larger, faster-settling flocs across a broader pH range and cuts chemical dosage significantly. It is not a single fixed compound but a family of aluminium hydroxychloride polymers characterised by their Al₂O₃ content and basicity.
PAC is sourced globally as both powder (≈28–31% Al₂O₃) and liquid (≈10–11% Al₂O₃), and for buyers dependable supply is as much about matching grade and basicity to the water source as it is about chemistry. PAC (CAS 1327-41-9, HS 2827.32) is used at potable-water grade under NSF/ANSI 60 where certified material is required.
Industrial buyers placing bulk orders also keep a close eye on poly aluminium chloride pricing, since contract rates feed directly into the cost of everything they produce downstream.
PAC is produced by the controlled partial neutralisation of aluminium chloride, or by reacting aluminium hydroxide (or aluminium metal/hydrate) with hydrochloric acid and, where higher basicity is required, a basifier such as calcium carbonate or aluminate. The degree of neutralisation sets the basicity - the ratio of hydroxyl to aluminium - which is the master performance parameter: higher basicity means more polymerisation, faster floc formation and lower residual aluminium. The reacted liquor is clarified and either sold as liquid (10–11% Al₂O₃) or spray-dried into powder (28–31% Al₂O₃).
Every shipment Elchemy supplies is tested for Al₂O₃ content, basicity, water-insoluble matter and heavy metals before dispatch, with a Certificate of Analysis travelling alongside each order.
If you're looking for current poly aluminium chloride pricing for bulk procurement, Elchemy provides quotes based on your specific requirements. Fill out the quote request form with your volume, grade, destination and packaging preference, and our team will revert with a detailed offer within 24 to 48 hours.
Pricing works on a quote basis rather than a published rate because the cost is driven by the price of aluminium hydroxide/aluminium chloride feedstock and hydrochloric acid, plus spray-drying energy, rather than tracking a fixed list.
Beyond that, several factors layer in to shape the final number: grade, committed volume, origin country, packaging format, freight, Incoterm choice (FOB, CIF or DDP) and applicable import duty (HTS 2827.32 for US-bound shipments).
For an approximate read on where the market sits, procurement teams often reference aluminium and chlor-alkali price indices, which give a sense of how rates are trending.
Trade publications also report the poly aluminium chloride price per kg as a unit-level benchmark, useful for spotting short-term regional shifts even on large industrial orders.
At bulk procurement scale, however, the poly aluminium chloride price per ton is the most relevant commercial unit, since contracts are typically negotiated and committed at that level.
For an exact rate, none of these references replaces a direct quote. The actual price depends on your contract structure, destination, committed volume and timing of dispatch, which is why a quote from our team will always be the most accurate number for your specific procurement.
Poly Aluminium Chloride ships in 25 kg (55 lb) bags, 50 lb bags for the US market, or 1 MT (2,205 lb) FIBC jumbo bags (liquids ship in drums, IBCs or ISO tanks as applicable), supplied as per buyer requirements. A typical 20' container holds approximately 18 to 24 MT depending on packaging.
For US-bound orders, domestic stock supports faster fulfilment. Where sourcing is required from origin countries, transit times typically run 24 to 28 days to the US East Coast and 18 to 22 days to the West Coast. Elchemy offers EXW, FOB, CIF and DDP terms, depending on how your procurement team prefers to handle landed cost and customs.
Material should be stored in a cool, dry, well-ventilated area per the storage conditions on the TDS. Standard dispatch follows agreed contract terms, with expedited timelines available where needed. Samples are dispatched within 24 to 48 hours.
Elchemy makes poly aluminium chloride procurement straightforward for industrial buyers. That means consistent material across the grades listed above, with a Certificate of Analysis for every batch and full documentation (TDS, SDS) as standard.
Because we source across multiple origins, we quote on the best landed cost for your destination rather than a single manufacturer's list price. Our partner plants operate to recognised quality standards (ISO 9001, plus food/pharma certifications where relevant), with Halal and Kosher certification available on request.
Beyond the US, Elchemy ships into 40+ countries with samples available for qualification before any bulk order, and pricing tailored to volume, destination and contract terms.
Solution is classified under GHS as Skin/Eye Irritant (Category 2). Some concentrated grades ship as a mildly corrosive material; confirm the SDS classification for the specific grade and concentration.
PAC is acidic in solution and mildly corrosive. Direct contact causes skin and eye irritation, and the dust or mist irritates the respiratory tract. It is not classified as highly toxic, but concentrated solution should be handled with gloves and eye protection. It reacts exothermically with strong bases. There is no significant chronic hazard at industrial handling levels; the main environmental control is avoiding over-dosing, which raises residual aluminium in treated water.
The full 16-section GHS-aligned SDS is available alongside material orders.
Poly aluminium chloride (PAC) is the most widely used inorganic polymer coagulant in modern water and wastewater treatment. Unlike traditional aluminium sulphate (alum), PAC forms larger, faster-settling flocs across a broader pH range and cuts chemical dosage significantly. It is not a single fixed compound but a family of aluminium hydroxychloride polymers characterised by their Al₂O₃ content and basicity.
PAC is sourced globally as both powder (≈28–31% Al₂O₃) and liquid (≈10–11% Al₂O₃), and for buyers dependable supply is as much about matching grade and basicity to the water source as it is about chemistry. PAC (CAS 1327-41-9, HS 2827.32) is used at potable-water grade under NSF/ANSI 60 where certified material is required.
Industrial buyers placing bulk orders also keep a close eye on poly aluminium chloride pricing, since contract rates feed directly into the cost of everything they produce downstream.
PAC is produced by the controlled partial neutralisation of aluminium chloride, or by reacting aluminium hydroxide (or aluminium metal/hydrate) with hydrochloric acid and, where higher basicity is required, a basifier such as calcium carbonate or aluminate. The degree of neutralisation sets the basicity - the ratio of hydroxyl to aluminium - which is the master performance parameter: higher basicity means more polymerisation, faster floc formation and lower residual aluminium. The reacted liquor is clarified and either sold as liquid (10–11% Al₂O₃) or spray-dried into powder (28–31% Al₂O₃).
Every shipment Elchemy supplies is tested for Al₂O₃ content, basicity, water-insoluble matter and heavy metals before dispatch, with a Certificate of Analysis travelling alongside each order.
If you're looking for current poly aluminium chloride pricing for bulk procurement, Elchemy provides quotes based on your specific requirements. Fill out the quote request form with your volume, grade, destination and packaging preference, and our team will revert with a detailed offer within 24 to 48 hours.
Pricing works on a quote basis rather than a published rate because the cost is driven by the price of aluminium hydroxide/aluminium chloride feedstock and hydrochloric acid, plus spray-drying energy, rather than tracking a fixed list.
Beyond that, several factors layer in to shape the final number: grade, committed volume, origin country, packaging format, freight, Incoterm choice (FOB, CIF or DDP) and applicable import duty (HTS 2827.32 for US-bound shipments).
For an approximate read on where the market sits, procurement teams often reference aluminium and chlor-alkali price indices, which give a sense of how rates are trending.
Trade publications also report the poly aluminium chloride price per kg as a unit-level benchmark, useful for spotting short-term regional shifts even on large industrial orders.
At bulk procurement scale, however, the poly aluminium chloride price per ton is the most relevant commercial unit, since contracts are typically negotiated and committed at that level.
For an exact rate, none of these references replaces a direct quote. The actual price depends on your contract structure, destination, committed volume and timing of dispatch, which is why a quote from our team will always be the most accurate number for your specific procurement.
Poly Aluminium Chloride ships in 25 kg (55 lb) bags, 50 lb bags for the US market, or 1 MT (2,205 lb) FIBC jumbo bags (liquids ship in drums, IBCs or ISO tanks as applicable), supplied as per buyer requirements. A typical 20' container holds approximately 18 to 24 MT depending on packaging.
For US-bound orders, domestic stock supports faster fulfilment. Where sourcing is required from origin countries, transit times typically run 24 to 28 days to the US East Coast and 18 to 22 days to the West Coast. Elchemy offers EXW, FOB, CIF and DDP terms, depending on how your procurement team prefers to handle landed cost and customs.
Material should be stored in a cool, dry, well-ventilated area per the storage conditions on the TDS. Standard dispatch follows agreed contract terms, with expedited timelines available where needed. Samples are dispatched within 24 to 48 hours.
Elchemy makes poly aluminium chloride procurement straightforward for industrial buyers. That means consistent material across the grades listed above, with a Certificate of Analysis for every batch and full documentation (TDS, SDS) as standard.
Because we source across multiple origins, we quote on the best landed cost for your destination rather than a single manufacturer's list price. Our partner plants operate to recognised quality standards (ISO 9001, plus food/pharma certifications where relevant), with Halal and Kosher certification available on request.
Beyond the US, Elchemy ships into 40+ countries with samples available for qualification before any bulk order, and pricing tailored to volume, destination and contract terms.
Solution is classified under GHS as Skin/Eye Irritant (Category 2). Some concentrated grades ship as a mildly corrosive material; confirm the SDS classification for the specific grade and concentration.
PAC is acidic in solution and mildly corrosive. Direct contact causes skin and eye irritation, and the dust or mist irritates the respiratory tract. It is not classified as highly toxic, but concentrated solution should be handled with gloves and eye protection. It reacts exothermically with strong bases. There is no significant chronic hazard at industrial handling levels; the main environmental control is avoiding over-dosing, which raises residual aluminium in treated water.
The full 16-section GHS-aligned SDS is available alongside material orders.
| Region | Max Allowed Level | Notes | Certification Body |
|---|---|---|---|
| Canada | - | Approved for drinking water treatment under NSF/ANSI/CAN 60. | NSF/ANSI/CAN 60 certification for drinking water applications. |
| India | - | Regulated under Indian Standard IS 15573:2018, which specifies requirements for use in drinking water treatment. The material must be manufactured from virgin raw materials. | BIS (Bureau of Indian Standards) certification with ISI Mark is mandatory for production and marketing in India. |
| United States | - | Approved for drinking water treatment under NSF/ANSI/CAN 60. Regulated by the EPA. | NSF/ANSI/CAN 60 certification for drinking water applications. |
| European Union | - | Registered under REACH. Classified as corrosive to metals (Category 1) and causing serious eye damage (Category 1). | REACH Registration. |
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