2-Phosphonobutane-1,2,4-tricarboxylic acid (PBTC or PBTCA)

2-Phosphono butane 1,2,4-tricarboxylic acid

CAS No.:    37971-36-1
Molecular Weight:     270.13
Molecular Formula:    C₇H₁₁O₉P

Structure:

Application:

2-Phosphonobutane-1,2,4-tricarboxylic acid (PBTC) is used as scale inhibitor, deflocculant, sequestrant, water stabilizer in cooling water systems.

Specification:

Appearance:	Clear colorless to yellowish liquid
Active substances (%):	48.0 - 52.0
Phosphoric acis (as PO43-, %):	0.5 max.
Phosphorous acid (as PO33-, %):	0.5 max.
pH (1% solution):	2.0 max.
Density (20°C, g/cm3):	1.25 min.

Standard Packing:

250kg net/200L PE drum

Safety Information:

2-Phosphonobutane-1,2,4-tricarboxylic acid (PBTC) is corrosive, so avoid contact with eyes and skin. The hazard code is UN 3265.