2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium Salt (PBTCANa4)
CAS No. 40372-66-5
Molecular formula: C7H7O9PNa4Molecular weight: 358
PBTCANa4 has low content of phosphoric, its structure contains both
phosphonic acid and carboxylic acid group, which enable its good
scale and corrosion inhibition properties. Its scale inhibition
property under high temperature is far better than that of
organophosphines. PBTCANa4 can improve the solubility of zinc salt,
has good chlorine oxidation tolerance and good composite synergy.
The solid state is easy deliquescence.
White crystal powder
Active component (PBTCA) %
Active component (PBTCANa4) %
Total phosphoric acid(PO43-) %
pH(1% water solution)
PBTCANa4 is the widely used and high effective agent as composite
scale and corrosion inhibitor, it is also the excellent stabilizer
for zinc salt. PBTCANa4 is used as scale and corrosion inhibitor in
circulating cool water system and oilfield refill water system,
especially used together with zinc salt and copolymer. PBTCANa4 can
be used in situations of high temperature, high hardness, high
alkaline and high concentration index, PBTCANa4 is used as
chelating agent and metal detergent in lavation fields.
PBTCANa4 is usually used together with zinc salt, copolymer,
organophosphine, imidazole and other water treatment agents.
Package and storage
25kg/bag,customers’ requirement. Storage for one year in shady room
and dry place.
IroTaihe, one of leading chemical production manufacturers, is
specialized in the production of tetra sodium of
2-phosphonobutane-1,2,4-tricarboxylic acid pbtca.na4. As one of the
famous brands, we welcome you to get the free sample with us.