PBTC
2-Phosphonobutane-1,2,4-tricarboxylic acid

Product information

CUBLEN	P 50	P 4014
Chem. Identity	acid	Na4-salt
Abbreviation	PBTC	Na4PBTC
CAS-No. EINECS-No.	37971-36-1 253-733-5	66669-53-2 266-791-2
Appearance	colorless to yellowish clear liquid
Active substance (calculated as acid)	50 %	30 %
Active substance (calculated as salt)	-	40 %
Density (g/cm³) @ 20°C	1.3	1.4
pH (1%) @ 20°C	2	10

Functional properties
Inhibition of CaCO3 precipitation	excellent
Inhibition of CaSO4 precipitation	very good
Sequestration of metal ions	good
Corrosion inhibition on unalloyed steel	good