V2O5 content (mole %) | PbO content (mole %) | GeO2 content (mole %) | Tg (˚C) | Tc (˚C) | Tm (˚C) | Kg
| D (g/cm3) | Vm (cm3/mol) |
50 | 50 | 0 | 241 | 300,412 | 500 | 0.156 | 5.075 | - |
50 | 45 | 5 | 267 | 327,397,420 | 494 | 0.207 | 4.176 | 47.079 |
50 | 40 | 10 | 265 | 325,394,419 | 492 | 0.307 | 4.152 | 45.923 |
50 | 35 | 15 | 254 | 295,308,388 | 490 | 0.123 | 4.137 | 44.656 |