Posted by 2-Hydroxyphosphonoacetic acid (HPAA) can be used as an alternative to HEDP (hydroxyethylphosphate). They both belong to the organophosphoric acid class of scale inhibitors and have similar functions and applications.HPAA shows comparable or even better performance than HEDP in many aspects:
Scale inhibition effect: HPAA and HEDP both have good scale inhibition effect, can effectively inhibit the deposition of calcium, magnesium and other metal ions and scale mat formation.
pH adaptability: HPAA has a wide range of application, can work under lower pH (2-3) and higher pH (7-9), and has good compatibility with systems under different water quality conditions.
Temperature stability: HPAA maintains good scale inhibition performance at high temperatures and is therefore suitable for high temperature water treatment systems.
Eco-friendly: HPAA does not contain phosphorus, which has less impact on the environment. At the same time, it meets modern environmental protection requirements.
Although HPAA can be used as an alternative to HEDP, experimental validation and dosage optimisation are still recommended before use. This is because the specifics of the water treatment system and differences in water quality may affect the performance of the chemical. If required, it is recommended to consult a professional or supplier for more accurate and detailed advice.
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