Description
Packing method:
sealed glass bottle.
Physical properties
| Molecular formula | Ta(OC2H5)5,Ta(OEt)5 |
| Chemical name | Tantalum（V） ethoxide, Tantalum pentaethoxide |
| CAS No. | [6074-84-6] |
| molecular weight | 406.25 |
| Appearance and melting point | 21℃Light yellow or colorless liquid with melting point of 21 ℃ |
| Density | 1.56g/cm3 |
| Degree of polymerization | 2.20 (Dissolved in benzene) |
| viscosity | 14.7cSt/30℃ 3.60cSt/100℃ 1.55cSt/160℃ |
| solubility | 1600g/1L C2H5OH , 750g/1L THF |
| boiling point | 140 °C (0.1 torr) |
| Storage | Sealed storage under dry inert gas protection (tantalum ethoxide has strong reaction ability to water) |
Standard for tantalum alcohol (impurity content / ≤%)
| impurity element | Tantalum ethoxide | |
| High purity grade 1 | High purity grade 2 | |
| Nb | 0.0030 | 0.0010 |
| Ti | 0.0005 | 0.0005 |
| W | 0.0010 | 0.0005 |
| Mo | 0.0010 | 0.0005 |
| Cr | 0.0010 | 0.0003 |
| Mn | 0.0010 | 0.0005 |
| Fe | 0.0030 | 0.0005 |
| Ni | 0.0010 | 0.0003 |
| Cu | 0.0010 | 0.0003 |
| Al | 0.0010 | 0.0005 |
| Si | 0.0030 | 0.0008 |
| Cl | 0.0200 | 0.0050 |
| Purity | ﹥99.95% | ﹥99.98% |
| appearance | colorless liquid | |
