Tungsten
ALDRICH/267554 - wire, diam. 0.25 mm, ≥99.9% trace metals basis
Synonym: W
CAS Number: 7440-33-7
Empirical Formula (Hill Notation): W
Molecular Weight: 183.84
EC Number: 231-143-9
MDL Number: MFCD00011461
Linear Formula: W
Product Type: Chemical
| assay | ≥99.9% trace metals basis |
| bp | 5660 °C (lit.) |
| density | 19.3 g/mL at 25 °C (lit.) |
| diam. | 0.25 mm |
| form | wire |
| InChI | 1S/W |
| InChI key | WFKWXMTUELFFGS-UHFFFAOYSA |
| mp | 3410 °C (lit.) |
| Quality Level | 100  |
| resistivity | 4.9 μΩ-cm, 20°C |
| SMILES string | [W] |
| Application: | Tungsten (W) wire can be used for a variety of applications such as: • fabrication of tungsten tips which can be used as field emitters, nanoprobes and scanning tunneling microscope (STM) probes. • increase of the band gap of amorphous silicon germanium alloy. • formation of tungsten fibers for potential usage in the lighting industry. |
| Packaging: | 9.5 g in poly spool |
| Preparation Note: | 9.5 g = 10 m; 95 g = 100 m |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.9% trace metals basis |
| bp | 5660 °C (lit.) |
| mp | 3410 °C (lit.) |
| Density | 19.3 g/mL at 25 °C (lit.) |
| UNSPSC | 12141747 |