What kind of chemical is hedp?

HEDP is an organic compound with the molecular formula C2H8O7P2, molecular weight 206.03, white crystalline particles, soluble in water as a colourless to light yellow liquid. It is easily soluble in water, soluble in methanol and ethanol. It has a large dissociation constant in water and can generate stable complexes with metal ions. It can form stable adducts with compounds containing active oxygen to keep active oxygen stable. Low toxicity.

HEDP is a kind of organic phosphoric acid scale and corrosion inhibitor, can form stable complex with iron, copper, zinc and other metal ions, can dissolve metal surface oxides.HEDP can still play a good corrosion and scale inhibition role at 250 ℃, still very stable at high pH, not easy to hydrolyse, and is not easy to decompose under general light and heat conditions. Acid and alkali resistance, resistance to chlorine oxidation performance is better than other organic phosphoric acid (salt).HEDP and metal ions in the water, especially calcium ions to form a hexacyclic chelates, so HEDP has a better scale inhibition effect and has a clear solubility limit effect, and when used in combination with other water treatment agents, it shows ideal synergistic effect.HEDP solid is a high purity product, suitable for winter cold areas; especially for the electronics industry cleaning agent and daily use chaicals. HEDP solids are high purity products, suitable for winter cold areas; especially suitable for cleaning agent of electronic industry and additives of daily-use chaicals.

Therefore, HEDP is mainly used as scale and corrosion inhibitor for boiler and heat exchanger, complexing agent for cyanide-free plating, chelating agent for soap, cleaning agent for metal and non-metal.