PBTC: At low temperature, PBTCA has excellent scale inhibition performance against calcium carbonate scale. With the increase of calcium ion + alkalinity concentration, its scale inhibition rate decreases, but still can maintain a high scale inhibition effect.
HEDP(Hydroxyethylidene Diphosphonic Acid): It can also form stable complexes with calcium ions, especially hexacyclic chelate, which can effectively inhibit the generation of calcium carbonate scale. At low temperature, HEDP also shows remarkable scale inhibition performance, and can effectively prevent the formation of scale layer at low concentration.
Matching performance:
PBTCA: It has good compatibility with other scale and corrosion inhibitors and can be used together to enhance the scale inhibition effect.
HEDP: It has good compatibility with other scale inhibitors (e.g. polycarboxylates) and can be used together to enhance the scale inhibition effect.