2-Phosphonobutane-1,2,4-Tricarboxylic Acid
PBTCA
Molecular Formula: C7H11O9P
Molecular Weight: 270.13
CAS Number: 37971-36-1
EINECS Number: 253-733-5
Appearance: Clear, colorless to pale yellow aqueous solution
Active acid: 50.0% min
Phosphorous acid (as PO33-): 0.5% max
Phosphoric acid (as PO43-): 0.2% max
Density (20℃) g/cm3: 1.27
pH (1% water solution): 1.5~2.0
Fe: 10.0ppm max
Chloride: 10.0ppm max
Turbidity (NTU): 10.0
Color APHA: 30.0