Poly aluminum chloride (18%)

Polyaluminium chloride, often abbreviated to PAC, is a coagulant widely used in drinking water and wastewater treatment. The 18% version means that the solution contains 18% PAC and 82% water or other solvents.

Application: PAC is mainly used as a coagulating and flocculating agent in the treatment of drinking water and industrial wastewater. It helps to consolidate impurities into larger flakes, facilitating their removal by filtration.

Composition: PAC's general chemical formula is Aln(OH)mCl(3n-m), where n is the number of aluminum groups, m is the number of hydroxide groups (OH), and chlorine atoms (Cl) may vary according to specific composition.

Appearance: The liquid version of PAC 18% is generally a transparent or slightly cloudy solution due to the presence of suspended matter. The color can vary from transparent to slightly tinted, depending on the purity of the product and the water used in the solution.

Advantages: PAC is appreciated for its ability to coagulate particles suspended in water quickly and efficiently. It is also less sensitive to variations in water pH than other coagulants, making it a popular choice for water treatment.

Precautions: As with all chemicals, it is important to follow the manufacturer's instructions for the safe use of PAC. Normal precautions when handling chemicals, such as wearing personal protective equipment, should be followed.

Appearance: Clear liquid, generally amber to pale yellow in color.

Concentration: 18% PAC indicates that the solution contains 18% polyaluminium chloride and 82% water.

PH: PAC 18% solution is generally slightly acidic, with a pH between 3.5 and 5.0.Density: Specific gravity depends on solution concentration, but is generally close to that of water, at around 1.0 g/cm³.Viscosity: The viscosity of PAC solution can vary with temperature and concentration, but is generally low, making it easy to handle and dose.

Storage: 18% PAC must be stored under suitable conditions to avoid contamination and degradation. It is generally stored in plastic or stainless steel containers in a cool, dry place, out of direct sunlight.

Solubility: PAC is soluble in water, forming a stable solution.Application: It is generally used in the treatment of drinking water, industrial and municipal wastewater, and other water treatment applications.