Low-alkalinity water
Where conventional coagulant dosing crashes pH and forces lime supplementation.
High basicity grade
Aluminium chlorohydrate (ACH) supplier in the UAE
ACH is the high-basicity end of the polyaluminium chloride family — typically 83% basicity, minimal pH depression, and near-zero alkalinity consumption.
ACH and PAC: same family, different position
Aluminium chlorohydrate is not a separate chemistry from polyaluminium chloride — it sits at the high-basicity end of the same family, typically around 83% basicity, with a correspondingly high aluminium content and very low chloride relative to aluminium.
What that means practically: almost all the hydrolysis has already happened during manufacture. ACH barely consumes alkalinity and barely moves pH. On water where a conventional coagulant would force you to dose lime or soda ash just to stay in range, ACH removes that second chemical from the process entirely.
The trade-off is cost and mechanism. ACH is more expensive per tonne, and because it delivers less raw charge neutralisation, it underperforms on high-turbidity water where a lower-basicity product would be both cheaper and more effective. It is a precision tool, not an upgrade.
Applications
Where ACH is the right call
Membrane pre-treatment
Lower residual aluminium risk and gentler pH effect ahead of UF and RO.
Low-turbidity potable water
Sweep and bridging mechanisms outperform charge neutralisation in clear water.
Cold water treatment
Holds performance at low temperature better than lower-basicity products.
Personal care manufacturing
ACH is also an antiperspirant active. That is a different grade specification — tell us if that is your application.
Paper wet end
Retention aid and pitch control applications where pH stability is critical.
FAQ
Common questions
ACH is a high-basicity polyaluminium chloride, typically around 83% basicity. Standard PAC ranges from about 40% to 70%. ACH consumes almost no alkalinity and barely depresses pH, but delivers less charge neutralisation.
On low-alkalinity or low-turbidity water, for membrane pre-treatment, or in cold water. On high-turbidity water a lower-basicity PAC is usually both cheaper and more effective.
Water treatment grade is our standard product. Cosmetic and pharmaceutical grades are a different specification with different certification — tell us your application and we will confirm what we can supply before you order.
Per tonne, yes. Whether it is more expensive in use depends on your water — if it removes the need for lime or soda ash dosing, the total chemical cost can work out lower.
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