| Abbreviation: | PBTC |
| Product code: | NST1400 |
| Supplier: | NASTA Trading GmbH |
| Molecular Formula: | C7H11O9P |
| Commercial Form: | Aqueous Solution |
| MolecularWeight: | 270 |
| Chemical Name: | 2-Phosphonobutane - 1,2,4 - tricarboxylic acid |
| CAS Number: | 37971-36-1 |
| EC Number: | 253-733-5 |
| Recommended Uses: | Industrial water treatment and boiler systems. Controls scale where halogen-based biocides or hypochlorite bleach are employed. |
Characteristics |
Limits |
| Active Acid (%) | 49.0 – 51.0 |
| Phosphorous acid as PO33-(%) | 0.8 maximum |
| Phosphoric acid as PO43-(%) | 0.5 maximum |
| PH at 25? (1% solution) | 2.0 maximum |
| Specific Gravity at 20/20°C | 1.270 minimum |
| Iron content (Fe ppm) | 35.0 maximum |
| Colour (APHA) | 125 maximum |