Chemical nature
| Chemical name | Propynol ethoxylate |
| Molecular formula | C5H8O2 |
| Molecular weight | 100.1 |
| CAS No. | 3973-18-0 |
Properties
| Physical form | Yellowish to yellow liquid |
| Concentration (%) | ≥90.0(GC) |
| PH | 2.5-6.5 |
| Density | 1.00-1.04 |
| Solubility | Well soluble in water. |
PME is used as a top brightener and leveling agent in nickel baths at a concentration of 10-30mg/L.