Product Application

Mechanism of Action

Maleic polymers are known to be excellent calcium carbonate inhibitors and crystal modifiers but many exhibit only fair calcium sulfate deposit control. A new polymer, Scale Inhibitor 4300 Rx, has been developed to overcome this problem. Scale Inhibitor 4300 Rx contains maleic polymer and a unique combination of other functionalities to provide both superior calcium carbonate and calcium sulfate inhibition, also outperforming HEDP. Preventing calcium sulfate scale is important in water systems treated with sulfuric acid for pH control or if using seawater or briny waters. Also removing sulfur oxide gases in scrubbing systems can result in sulfur containing calcium deposits.

Scale Inhibitor 4300 Rx  polymer inhibits scale buildup on surfaces through at least three mechanisms:
 

• Solubility enhancement or threshold effect, which reduces precipitation of low solubility inorganic salts.
• Crystal modification, which deforms the growing inorganic salt crystals to give small, irregular, readily fractured crystal that do not adhere well to surfaces.
• Dispersing activity, which prevents precipitated crystals or other inorganic particles from agglomerating and depositing on surfaces.