Specification :

Chemical Name: 2-Phosphonobutane - 1, 2, 4 - tricarboxylic acid
Abbreviation: PBTC CAS Number: 37971-36-1
Molecular Formula: C7H11O9P
Molecular Weight: 270
Application Notes: Excellent chlorine stablity and calcium scale inhibition in high stressed alkaline conditions.
Recommended Uses: Controls scale where halogen-based biocides or hypochlorite bleach are employed. Controls calcium scale formation in high stressed alkaline conditions.
Specification:
Appearance Water white to pale yellow liquid
Active Acid ( % ) 49.0 - 51.0
Phosphorous acid as PO33- ( % ) 0.8 max
Phosphorous acid as PO43- ( % ) 0.5 max
PH( 1% solution) 2.0 max
Density at 20° C, g/ cm3 1.270 min
Iron, as Fe ( ppm) 35.0 max
Colour APHA( Hazen) 125 max