High purity 2-Phosphonobutane-1,2,4-tricarboxylic acid 98% TOP1 supplier in China CAS NO.37971-36-1

Analysis Items

Specifications

Typical  Results

Appearance

Clear, Colorless to pale yellow aqueous solution

Clear colorless to pale yellow aqueous solution

Active Content (as PBTC)

49.0 - 51.0%

50.07%

Phosphorous acid (as PO₃^3-)

0.5% max

0.25%

Phosphoric acid (as PO₄^3- )

0.2% max

0.13%

pH (1% water solution)

1.5 - 1.9

1.87

Density (20℃) g/cm³

1.27 - 1.31

1.280

Iron

10 ppm max

4.06 ppm

Chlorides

10 ppm max

4.06 ppm