Polyaluminium Chloride (PAC) LB
Polyalumınıum Chlorıde LB
Lowest basicity product of PAC. It is commonly used in industrial treatment processes and biological treatment processes for phosporus removal
An empirical formula, Aln(OH)mCl(3n−m), where 0 < m< 3n can be written to describe overall PAC composition. The degree of neutralization of hydrated Al(III), or basicity, is expressed as the mole ratio of OH/Al(m/n). This ratio is often called the ligand or hydroxyl number r: aluminum chloride has r = 0; aluminum hydroxide, r = 3; and PAC products have r values ranging from about 0.5 to 2.5. PAC solution products are always acidic. The pH ranges from < 1 to ca 4.0. The total aluminum concentration, conventionally expressed as Al2O3 or alumina content, is important to product composition and activity. Total Al content of PAC products as Al2O3 ranges from about 6 to 24% by weight in aqueous solutions.
PAC products can also contain other inorganic salts and these salts can affect PAC properties. Product Specifications
- Direct dosing, no need to prepare solution
- Less sludge formation than alum or ferric salts
- Less chemical dosing than alum or ferric salts
- High phosporus(P) removal rate
- High COD removal rate
- High effect on pH
- Can be used as retantion agent for papermaking
Technical Data
- App.: Clear Yellow Liquid
- Al2O3: 17%
- Basicity: 35±5%
- Density: 1,350 ± 0,5 g/cm3
- pH (%5 Sol.): 1,5-4,5
- Viscosity: 45 cps