Selenium Powder CAS #: 7782-49-2

Synonyms Selenium particles, Selenium microparticles, Selenium micropowder, Selenium micro powder, Selenium micron powder, Selenium submicron powder, Selenium sub-micron powder,

Molecular Weight: 78.96 Appearance: Gray to black solid Melting Point: 217 °C Boiling Point: 684.9 °C Density: 4.79 g/cm3 Solubility in H2O: N/A Poisson's Ratio: 0.33 Young's Modulus: 10 GPa Vickers Hardness: N/A Tensile Strength: N/A Thermal Conductivity: 0.00519 W/cm/K @ 298.2 K Thermal Expansion: (25 °C) (amorphous) 37 µm·m-1·K-1 Electrical Resistivity: 106 microhm-cm @ 0 °C Electronegativity: 2.4 Paulings Specific Heat: 0.767 Cal/g/K @ 25 °C Heat of Fusion: 1.22 Cal/gm mole Heat of Vaporization: 3.34 K-cal/gm atom at 684.9 °C

Health & Safety Information Signal Word: Danger Hazard Statements: H301+H331-H373- Hazard Codes: T Precautionary Statements: P260-P261-P304+P340-P405-P403+P233-P501 Flash Point: Not applicable Risk Codes: 23/25-33-53 Safety Statements: 20/21-28-45-61 RTECS Number: VS7700000 Transport Information: UN3288 WGK Germany: 2 GHS Pictogram: Image,Image

Chemical Identifiers Linear Formula: Se Pubchem CID: 6326970 MDL Number: MFCD00134090 EC No.: 231-957-4 Beilstein/Reaxys No.: N/A SMILES: [Se] InchI Identifier: InChI=1S/Se InchI Key: BUGBHKTXTAQXES-UHFFFAOYSA-N