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2-Phosphonobutane -1,2,4-Tricarboxylic Acid(PBTCA)

Properties: PBTCA is light yellow transparent liquid. It has structural features of both phosphoric acid and carboxylic acid group, which enable its excellent scale inhibition properties for calcium carbonate and calcium sulfate. PBTCA has low content of phosphorus and easy to dissolve with zinc salt comparing with organic phosphoric acid. Therefore，it’s widely used by complexing agent.

Usage: PBTCA is widely used as the scale and corrosion inhibitor in circulation chilled water system and water injection system.

Items                                                                    Index

appearance                                 light yellow transparent liquid

active component content(PBTCA)%                    50±0.5

PH (1% solution)                                                 ＜2.0

phosphoric acid（as PO43-）％                         ＜0.2

density (20℃)g/cm3                                            1.2-1.3

Method of Use: The general dosage is 5-20ppm and continuous dosing is appropriate.

Packing: Using polyethylene plastic barrel packing and a barrel’s net weight is 30kg or 200 kg.

Storage Conditions: It should be stored in ventilated and dry warehouse, and the storage period is one year.