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

PropertiesUnitsGuarantee Value
Molecular Weightg/mol210.48
Molecular Formula%40-90
Water Insoluble%≤0.1
Al2O3%≥46
Atomic Ratio(Al:Cl)1.90:1-2.10:1
Asmg/kg≤2.0
Basicity%75-80
Cdmg/kg≤2.0
Cl%<18
Cr6+mg/kg≤2.0
Femg/kg≤200
Hgmg/kg≤0.1
PH value(15% aqueous)%3.0-5.0
Particle Size100% pass 100mesh / 99% pass 200mwsh
AppearanceWhite 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

PropertiesUnitsGuarantee Value
Molecular Weightg/mol210.48
Molecular Formula%40-90
Water Insoluble%≤0.1
Al2O3%>23
Atomic Ratio(Al:Cl)1.90:1-2.10:1
Asmg/kg≤2.0
Basicity%75-83
Cdmg/kg≤1.0
Cl%<9.0
Cr6+mg/kg≤1.0
Femg/kg≤100
Hgmg/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.