Poly Aluminum Chloride (PAC) CAS 1327-41-9 High Purity Industrial Grade PAC Poly Aluminum Chloride for Water Treatment High Quality Poly Aluminum Chloride (PAC)

• Customization: Available
• CAS No.: 1327-41-9
• Formula: [Al2(Oh)Ncl6-N]M
• Model NO.: Industrial grade
• EINECS: 215-477-2
• Certification: Industrial Grade
• Purity: ≤30%
• Type: Aluminum Chloride
• Grade Standard: Industrial Grade
• Level: Industrial Grade, Food Grade, Drinking Water Grade
• Color: White, Yellow
• Appearance: Powder or Small Particles
• Solubility: Easily Soluble in Water
• Industrial Grade Content -1: 20%
• Industrial Grade Content -2: 25%
• Industrial Grade Content -3: 28%
• Food Grade Content -4: 30%
• Drinking Water Grade Content -5: 28% 30%
• Transport Package: Inner Woven Bag
• Specification: 25kg/bag 1000kg/bag
• Trademark: Sheng Moli
• Origin: Shandong, China
• HS Code: 2827320000
• Production Capacity: 90988500pieces/Year

Product Description

Polyaluminum chloride (PAC) is an inorganic polymeric coagulant with the chemical formula [Al2(OH)nCl6-n]m (n = 1-5, m ≤ 10) and a relative molecular weight between 102.9 and 289.8. PAC is odorless with a slightly bitter taste. It is a pale yellow or yellowish-brown powder or granules, and can also be prepared in liquid form. Common forms include powder, granules, and liquid. It is readily soluble in water, and the resulting aqueous solution is weakly acidic, with a pH of approximately 3.5-5.0. It is insoluble in organic solvents such as ethanol and ether. It readily absorbs moisture from the air and clumps, requiring sealed storage in a cool, dry place to prevent moisture from affecting its effectiveness. In industrial production, it is used in water treatment, papermaking, printing and dyeing, textiles, and mining as a coagulant, flocculant, precipitant, and decolorizing agent. It is also used in drinking water purification, wastewater treatment, and sludge dewatering processes. Its excellent flocculation properties can quickly adsorb suspended particles in water and form large flocs for sedimentation. It can efficiently purify water in the field of water treatment and assist in separation and purification in the industrial field, making it widely used.

Product name	Polyaluminum Chloride
Alias	PAC, polyaluminum chloride, polyaluminum chloride, aluminum hydroxychloride, basic aluminum chloride
Appearance	White, pale yellow, or yellowish-brown powder, granules, or liquid.
chemical formula	[Al2(OH)nCl6-n]m(n=1-5,m≤10)
CAS	1327-41-9
water soluble	Easily soluble in water, insoluble in ethanol and ether
Grade	Industrial grade, drinking water grade, food grade
Al2O3, %≥	24--28.0(powder),10.0(liquid)
Fe, % ≤	0.3
As, %≤	0.0005
Lead Time	within 5-15 days after received deposit or irrevocable L/C at sight
Sample	Free sample available
Payment Term	T/T or L/C at sight

Application description:
1. In the water treatment field, it is used as a core coagulant for drinking water purification and industrial wastewater treatment (such as papermaking wastewater, dyeing and printing wastewater, electroplating wastewater, etc.). It can quickly adsorb suspended particles and colloidal substances in water, forming large flocs that settle, removing COD, BOD, heavy metal ions, and color from the water, resulting in significant purification effects and reduced water treatment costs.

2. In the papermaking industry, it is used as a sizing agent and retention/filtration aid. During paper production, it can improve paper strength, water resistance, and whiteness, reduce fiber loss, and improve paper quality. Simultaneously, it reduces the pollutant content of papermaking wastewater, facilitating subsequent wastewater treatment.

3. In the dyeing and printing industry, it is used as a decolorizing agent and flocculant for treating dyeing and printing wastewater. It can effectively remove dye pigments, suspended solids, and harmful substances from wastewater, reducing wastewater color and COD values, enabling wastewater to meet discharge standards. It can also assist in the dyeing and color fixing of textiles.

4. In the mining industry, it is used as a flotation agent and precipitant during ore processing. It promotes the settling and separation of ore particles, improving ore recovery rates. It is also used in the purification of mine wastewater, reducing heavy metal ion pollution.

5. In the food industry, it is used as a clarifying agent in the processing of fruit juices, beverages, beer, and other products. It removes suspended impurities and colloidal substances from liquids, making the products clear and transparent, improving product quality, and meeting food-grade safety standards.

6. In the textile industry, it is used as a finishing agent and flocculant in the washing of textiles and wastewater treatment. It removes impurities and dye residues from the surface of textiles, improving fabric feel, while purifying textile wastewater and reducing environmental pollution.

7. In wastewater treatment, it is used as a sludge dewatering agent in urban wastewater treatment plants and industrial wastewater treatment stations. It reduces the water content of sludge, facilitating sludge transportation and disposal, improving sludge treatment efficiency, and reducing the space occupied by sludge storage.

8. In the laboratory, it is used as a chemical reagent, as a coagulant and precipitant, in water quality analysis, wastewater treatment experiments, etc., and can also be used in separation and purification experiments to help remove suspended impurities and colloidal substances from solutions.
Our Process:
In terms of production process, we employ spray drying, using bauxite and hydrochloric acid as the main raw materials. First, the bauxite is crushed and ground to a suitable particle size and added to a reaction vessel. Then, hydrochloric acid is slowly added to initiate an acid dissolution reaction, controlling the reaction temperature at 100-110ºC and the pH value at 2.0-3.0. After a certain reaction time, sodium hydroxide is added to adjust the pH value to 4.0-5.0, initiating the polymerization reaction to produce crude polyaluminum chloride (PAC). The CAC is then filtered, decolorized, and concentrated to remove impurities and colored substances before being sent to a spray drying tower for drying. The dried powder is then sieved and packaged to obtain the finished PAC. The filtered waste residue can be recycled and used in building materials production, improving resource utilization.

The reason for controlling the temperature at 100-110ºC and the pH value at 2.0-5.0 during the reaction is that this temperature range can accelerate the acid dissolution and polymerization reaction rate, ensuring that the reaction proceeds fully. Too high a temperature will cause hydrochloric acid to volatilize, increasing raw material consumption, while too low a temperature will slow down the reaction rate and affect production efficiency. Controlling the pH value within a suitable range can ensure that aluminum ions are fully dissolved and polymerized, avoiding incomplete polymerization that leads to poor flocculation effect of the product, while also preventing excessive polymerization that produces impurities and affects product purity.
Our advantages:
1.Polyaluminum chloride (PAC) boasts high purity, with an Al2O3 content ≥28.0% (powder), free of harmful impurities, meeting the high-purity product quality requirements of industries such as drinking water, food, and environmental protection.

2.It reduces energy consumption, employing a spray drying + high-efficiency polymerization process, saving over 40% energy compared to traditional drum drying, significantly lowering production costs.

3.It is pollution-free; waste residue from the production process can be recycled for building material production, wastewater can be treated to meet discharge standards, and exhaust gas is treated through absorption before discharge, generating no harmful pollutants and meeting environmental protection requirements.

4. The product quality is stable; the spray drying process ensures uniform particle size, good solubility, and stable flocculation effects, adapting to the treatment needs of different water qualities and meeting relevant national drinking water and industrial standards.
5. Raw material utilization is high; bauxite conversion rate can reach over 90%, waste residue and wastewater are recycled, reducing raw material waste and environmental pollution, improving production efficiency, and the raw materials are widely available and inexpensive.