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Aluminum Chlorohydrate (ACH)

Chemical Formula: Al12Cl12(OH)24

Aluminum Chlorohydrate (ACH), sold under the Kemira trade name of PAX-XL19, is the highest concentrated and most highly charged polyaluminum chloride available. ACH, as well as other PAX products, yields to lower chemical sludge production, low impact on pH and alkalinity and results in lower residual aluminum.  It works also well when there are special treatment circumstances such as low pH, alkalinity and turbidity in raw water. ACH is also frequently used in industrial waste treatment such as food and pharmaceutical, and in paper production.

To obtain MSDS and additional product information in French or English, please contact Customer Service at 1-800-465-6171 or by email at  If calling from outside Canada, please dial 1-450-652-0665.