BARIUM SELENIDE
- CAS No.
- 1304-39-8
- Chemical Name:
- BARIUM SELENIDE
- Synonyms
- selenoxobarium;BARIUM SELENIDE;selanylidenebarium;BARIUM SELENIDE, 99.5% (METALS BASIS)
- CBNumber:
- CB1216752
- Molecular Formula:
- BaSe
- Molecular Weight:
- 216.29
- MOL File:
- 1304-39-8.mol
- Modify Date:
- 2024/12/18 14:07:02
| Melting point | 1780°C |
|---|---|
| Density | 5.02 |
| solubility | reacts with H2O |
| form | cubic crystalline powder |
| color | white or reddish |
| Water Solubility | decomposed by H2O [MER06] |
| CAS DataBase Reference | 1304-39-8 |
| EPA Substance Registry System | Barium selenide (BaSe) (1304-39-8) |
BARIUM SELENIDE Chemical Properties,Uses,Production
Description
Barium selenide has the molecular formula of BaSe and the molecular weight of 216.2956 g/mol. Its CAS
number is 1304-39-8. It is a white crystalline powder
having a melting point of 1782°C. Its density is 5.02 g/cm3. It reacts with water so that an aqueous
method of precipitation cannot be used to prepare
this compound. Barium selenide is very moisture
sensitive, and must be handled under inert conditions.
It can be prepared by reaction of the oxide or
carbonate with Se, or by the reduction of the selenate
with hydrogen gas:
2BaCO3+ 5Se+ Heat ? 2BaSe+ 3SeO2+ CO2
BaSeO4+ 4H2 ? BaSe+ 4H2O
Strontium selenide and barium selenide both have
a simple cubic structure, with cube edges equal to
3.117? and 3.308 ? , respectively.
Chemical Properties
Crystalline powder. Decomposes in water.
Uses
Barium selenide has been used to construct a photocell
that has been used extensively to measure the solar
irradiance of the Sun at various points on the globe. It is
used because other photocell elements like selenium
tend to decline in output and saturate under the intense
radiance of the Sun. BaSe remains quasi-linear and can
be used to measure intensity from 2000 ? to 7200 ?
using a double monochrometer as a spectrum analyzer.
As a portable unit, it uses narrowband (20–50 ? halfwidth)
interference glass filters in 14 steps as a spectrum
analyzer over the range 3100 ? to 16,300 ? , but the
recording is manual. The field of view is <3° of the solar
irradiance over the face of the Sun.
BaSe is available commercially as a sputtering target
or in limited quantities as a powder.
Synthesis
BaSeO4 + 4 H2 = BaSe + 4 H2O
The selenate (about 1 g.) is distributed in a thin layer over a
quartz boat 10 cm. long and 1 cm. wide. The drying at 200°C is
repeated, this time in a reaction tube and in a stream of N2. Reduction in a stream of H2 follows. It should continue for two hours at 500°C
for BaSeO4.
BARIUM SELENIDE Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81148696 +86-15536356810 | China | 3882 | 58 | Inquiry |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | China | 43416 | 58 | Inquiry |
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 029-81120477 17792793610 | China | 9763 | 58 | Inquiry |
| HUNAN CHEMFISH SCIENTIFIC CO.,LTD | 0731-+86-0731-85567275 18932438858 | China | 6710 | 58 | Inquiry |
| VI Semiconductor Materials Group Co. Ltd | 13541048799 15928092740 | China | 381 | 58 | Inquiry |
| Shanghai Macklin Biochemical Co.,Ltd. | 15221275939 | China | 15874 | 55 | Inquiry |
| VWR International | 800 932 5000 | United Kingdom | 6548 | 82 | Inquiry |
| MATERION Inc. | 800 327 1355 | United States | 1079 | 74 | Inquiry |
| Alfa Aesar | 1 888 343-8025 Specialty/Bulk | United States | 6814 | 81 | Inquiry |
| ESPI Corp Inc. | 541.488.8311 | United States | 507 | 76 | Inquiry |
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