| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Email: |
saleschina@alfa-asia.com |
| Company Name: |
Energy Chemical |
| Tel: |
400-0056266 |
| Email: |
sales8178@energy-chemical.com |
|
| | ARSENIC (III) SELENIDE Basic information |
| Product Name: | ARSENIC (III) SELENIDE | | Synonyms: | Arsenicselenideblackxtl;diarsenictriselenide;Diarsenictriselenide(As2Se3);diarsenictriselenide(asse3);Arsenic(III) selenide lump;Arsenic(III) selenide 99.999%;Arsenic(III) selenide (As2Se3);Arsenic(III) selenide, 99.999% trace metals basis | | CAS: | 1303-36-2 | | MF: | As2Se3 | | MW: | 386.72 | | EINECS: | 215-119-5 | | Product Categories: | metal chalcogenides | | Mol File: | 1303-36-2.mol |  |
| | ARSENIC (III) SELENIDE Chemical Properties |
| Melting point | 360°C | | density | 4,75 g/cm3 | | solubility | insoluble in H2O; soluble in alkaline solutions | | form | crystal | | Specific Gravity | 4.75 | | color | black | | Water Solubility | Soluble in nitric acid. Insoluble in water. | | Merck | 14,805 | | Exposure limits | ACGIH: TWA 0.01 mg/m3; TWA 0.2 mg/m3
NIOSH: IDLH 5 mg/m3; IDLH 1 mg/m3; TWA 0.2 mg/m3; Ceiling 0.002 mg/m3 | | CAS DataBase Reference | 1303-36-2(CAS DataBase Reference) | | EPA Substance Registry System | Arsenic selenide (As2Se3) (1303-36-2) |
| Provider | Language |
|
ALFA
| English |
| | ARSENIC (III) SELENIDE Usage And Synthesis |
| Chemical Properties | black crystal(s); dark brown solid; preparation: from melted As and Se; uses: vacuum deposition [CER91] [STR93] [MER06] | | Uses | Arsenicselenide is used as a chalcogenide glass for infrared optics, as it transmits light with wavelengths between 870 nm and 17.2 μm. | | Definition | Arsenic tri-selenide takes amorphous or glassy material. Strong absorption bands are observed when As2O3 is incorporated into the source materials or As2O3 is formed during fabrication by oxidetion. As2O3 takes the cubic system, the monoclinic system, and the glassy state. The strong absorption bands are observed at 1050, 805, and 480 cm-1 for the cubic crystal system, at 1100, 805 cm-1 for the monoclinic crystal system and at 805 and 630 cm-1 for the glassy material. The absorptions in the transmittance spectrum T2 agree with either of these absorption bands. | | Production Methods | As and Se are encapsuled into a quartz tube in vacuum and the tube is put into a rocking furnace. The capsule is heated at the temperature slightly higher than the melting point and rocked to mix each component completely followed by slow cooling.
| | Safety Profile | Low toxicity by ingestion. Whenheated to decomposition it emits toxic vapors of As andSe. |
| | ARSENIC (III) SELENIDE Preparation Products And Raw materials |
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