204307

Selenium

pellets, <5 mm particle size, ≥99.999% trace metals basis

• Empirical Formula (Hill Notation): Se
• CAS Number: 7782-49-2
• Molecular Weight: 78.96
• EC Number: 231-957-4
• MDL number: MFCD00134090
• UNSPSC Code: 12141910
• PubChem Substance ID: 24852251
• NACRES: NA.23

Properties

• description: gray
• Quality Level: 100
• assay: ≥99.999% trace metals basis
• form: pellets
• resistivity: 1.2 μΩ-cm, 0°C
• particle size: <5 mm
• bp: 684.9 °C (lit.)
• mp: 217 °C (lit.)
• density: 4.81 g/mL at 25 °C (lit.)
• SMILES string: [Se]
• InChI: 1S/Se
• InChI key: BUGBHKTXTAQXES-UHFFFAOYSA-N

Description

General description

Selenium is a non-metallic p-type semiconductor and is commercially produced as a by-product in refining sulfide-bearing copper minerals. It has good photovoltaic and photoconductive properties and is extensively used in the electronics such as solar cells, light meters, and, photocells. It also finds application in the field of ceramics, pigments, metallurgy, agriculture, glasses, and lubricants.

Application

Selenium has been used as a starting material tosynthesize selenium nanoparticles.

Safety Information

• pictograms: GHS06,GHS08
• signalword: Danger
• hcodes: H301 + H331,H373,H413
• pcodes: P260 - P264 - P273 - P301 + P310 - P304 + P340 + P311 - P314
• Hazard Classifications: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 4 - STOT RE 2
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges