Phosphino-Carboxylic Acid (PCA /POCA)

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Cas No.: 71050-62-9
Structural Formula:

Other name: POCA; PCA; Phosphino Carboxilic Acid (PCA) ; phosphino carboxylic acid; Copolymer of Phosphono and carboxylic Acid; dispersant PCA

1.Performance and usage
PCA /POCA introduces a phosphonic acid group into the original carboxylic acid group, has good dispersion properties for calcium carbonate and calcium phosphate scale in circulating cooling water, and has a good inhibitory effect on the deposition of barium sulfate, strontium sulfate and silicon scale; It has synergistic effects when combined with other organic phosphonates and copolymers. Suitable for a wide range of water quality, with good chemical stability, and has strong resistance to chlorine oxidation.
Mainly used for scale and corrosion inhibition in industrial circulating cooling water systems and oil field reinjection water systems.

2.Technical indicators

Items	Index
Appearance	Colorless to light yellow transparent liquid
Solid content, %	≥ 50.0
Total phosphor (as PO43-)%	≥ 0.5
Density (20℃), g/cm3	1.20 - 1.28
pH(1% water solution)	3.0 - 5.0

3.Using Method:
PCA /POCA can be used alone with a dosage concentration of 5-20mg/L, or it can be used in combination with organic phosphonic acid, copolymer, zinc salt or BTA.

4.Package and Storage:
25 kg or 250kg plastic barrel or 1000L IBC; can also be determined according to clients’ demand. 
Store in a cool and ventilated place indoors, storage period is 1 year.

5. Safety protection
Phosphino Carboxilic Acid (PCA /POCA) is acidic, pay attention to labor protection during operation. Avoid contact with skin, eyes, etc. After contact, rinse with plenty of water.