2-Phosphonobutane-1,2,4-Tricarboxylic acid [37971-36-1]
Abbreviation:PBTCA
Molecular weight:270
Specificatons:
|
Appearance |
Clear, Colorless to pale yellow aqueous solution |
|
Active Content (as PBTC) |
50% min |
|
Phosphorous acid (as PO33-) |
0.5% max |
|
Phosphoric acid (as PO43- ) |
0.2% max |
|
pH (1% water solution) |
1.5-2.0 |
|
Density (20) g/cm3 |
1.27 - 1.31 |
|
Iron |
10 ppm max |
|
Chlorides |
10 ppm max |
Applications:
PBTCA has low content of phosphoric, has structural features of both phosphoric acid and carboxylic acid group, which enable its excellent scale and corrosion inhibition properties. Its antiscale property under high temperature is far better than that of organic phosphines. It can improve zinc salt solubility, has good chlorine oxidation tolerance and good composite synergy.
Usage:
PTBCA is widely used in cyclic cooling water system and oilfield refill water system as scale and corrosion inhibitor, suitable to composite with zinc salt and copolymer.
It can be used in situations of high temperature, high hardness, high alkali and high concentration index. In lavation fields, it is used as chelating agent and metal detergent.
PBTCA is usually used together with zinc salt, copolymer, organic phosphine, triazole and other Water Treatment Chemicals. When used alone, the dosage of 5-15mg/L is preferred.
Packing and storage:
Normally In 25 kg or 250kg net Plastic Drum, IBC's can also be used as required.
Stored in cool and dry place in one year.