Aluminum Chlorohydrate – ACH

Aluminium chlorohydrate is a group of specific aluminum salts having the general formula AlnCl(3n-m)(OH)m. It is used in cosmetics as an antiperspirant and as a coagulant in water purification.

In water purification, this compound is preferred in some cases because of its high charge, which makes it more effective at destabilizing and removing suspended materials than other aluminum salts such as aluminium sulfate, aluminium chloride and various forms of polyaluminium chloride (PAC) and polyaluminium chlorisulfate, in which the aluminum structure results in a lower net charge than aluminium chlorohydrate. Further, the high degree of neutralization of the HCl results in minimal impact on treated water pH when compared to other aluminium and iron salts.

  • Chemical Name: Aluminum Chlorohydrate(ACH)
  • CAS No.: 12042-91-0
  • Standard: USP-34

Powder ACHLiquid ACH

Powder ACH

Properties Units Guarantee Value
Molecular Weight g/mol 210.48
Molecular Formula % 40-90
Water Insoluble % ≤0.1
Al2O3 % ≥46
Atomic Ratio(Al:Cl) 1.90:1-2.10:1
As mg/kg ≤2.0
Basicity % 75-80
Cd mg/kg ≤2.0
Cl % <18
Cr6+ mg/kg ≤2.0
Fe mg/kg ≤200
Hg mg/kg ≤0.1
PH value(15% aqueous) % 3.0-5.0
Particle Size 100% pass 100mesh / 99% pass 200mwsh
Appearance White Powder
Package: 25kg/bag, PP with PE
Storage: Keep it in a cool and dry place to avoid direct exposure to the sun light.

Liquid ACH

Properties Units Guarantee Value
Molecular Weight g/mol 210.48
Molecular Formula % 40-90
Water Insoluble % ≤0.1
Al2O3 % >23
Atomic Ratio(Al:Cl) 1.90:1-2.10:1
As mg/kg ≤2.0
Basicity % 75-83
Cd mg/kg ≤1.0
Cl % <9.0
Cr6+ mg/kg ≤1.0
Fe mg/kg ≤100
Hg mg/kg ≤0.1
Ni  mg/kg ≤1.0
SO₄²⁻ mg/kg ≤200
PH value(15% aqueous) % 3.5-5.0
Light transmittance 15% aqueous % >90
Package: 1350kg/IBC drum, 18 drum/20’GP, 24.3ton/20’GP
Storage: Keep it in a cool and dry place to avoid direct exposure to the sun light.