357421

Tungsten

powder, ≤10 μm, ≥99.99% trace metals basis

• Synonym(s): W
• Empirical Formula (Hill Notation): W
• CAS Number: 7440-33-7
• Molecular Weight: 183.84
• EC Number: 231-143-9
• MDL number: MFCD00011461
• UNSPSC Code: 12141747
• PubChem Substance ID: 24861914
• NACRES: NA.23

Properties

• Quality Level: 100
• assay: ≥99.99% trace metals basis
• form: powder
• resistivity: 4.9 μΩ-cm, 20°C
• particle size: ≤10 μm
• bp: 5660 °C (lit.)
• mp: 3410 °C (lit.)
• density: 19.3 g/mL at 25 °C (lit.)
• SMILES string: [W]
• InChI: 1S/W
• InChI key: WFKWXMTUELFFGS-UHFFFAOYSA-N

Safety Information

• pictograms: GHS02
• signalword: Warning
• hcodes: H252
• pcodes: P235 - P280 - P403 + P235 - P407 - P420
• Hazard Classifications: Self-heat. 2
• Storage Class: 4.2 - Pyrophoric and self-heating hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves, type P3 (EN 143) respirator cartridges