셀레나이드 스트론튬
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셀레나이드 스트론튬 속성
- 녹는점
- 1600 °C(lit.)
- 밀도
- 4.540
- 물리적 상태
- 화이트 큐빅 크리스탈
- 색상
- white cubic crystals, crystalline
- CAS 데이터베이스
- 1315-07-7(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | T,N | ||
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위험 카페고리 넘버 | 23/25-33-50/53 | ||
안전지침서 | 20/21-28-45-60-61 | ||
유엔번호(UN No.) | UN 3283 6.1/PG 3 | ||
WGK 독일 | 3 | ||
TSCA | Yes | ||
위험 등급 | 6.1 | ||
포장분류 | III | ||
기존화학 물질 | KE-32244 | ||
유해화학물질 필터링 | 97-1-134 | ||
함량 및 규제정보 | 물질구분: 유독물질; 혼합물(제품)함량정보: 셀레늄 또는 그 화합물과 셀렌화합물을 1% 이상 함유한 혼합물 |
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유해·위험 문구: |
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예방조치문구: |
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셀레나이드 스트론튬 C화학적 특성, 용도, 생산
개요
Strontium selenide has the molecular formula of SrSe and the molecular weight of 166.5852 g/mol. It is a white cubic crystal whose CAS number is 1315-07-7. Its melting point is 1605°C and its density is 4.54 g/cm3. It reacts with water and so cannot be prepared by an aqueous precipitation method. It can be prepared by the reaction of the oxide with Se metal:2SrO+ Se+ Heat ? SrSe+ SeO2
It can also be prepared by reducing the selenate with hydrogen gas:
SrSeO4 + 4H2 + heat ? SrSe+ 4H2O
Strontium selenide and barium selenide both have a simple cubic structure, with cube edges equal to 3.117? and 3.308 ?, respectively. In the case of SrSe, the ions at the corners are Sr++ and Se--。
화학적 성질
white cub; -20 mesh with 99.5% purity [CER91] [CRC10]물리적 성질
Phosphors can be categorized in accordance with their behavior as fluorescent, phosphorescent or stimulable. As used in this disclosure, such categories should be understood as based upon the predominant behavior of the phosphor at about room temperature, i.e at about 20°C.? A “stimulable” phosphor is one that, at room temperature, stores energy absorbed upon exposure to excitation by electromagnetic radiation and releases the predominant portion of the stored energy upon exposure to stimulating electromagnetic radiation.
? A phosphorescent phosphor at room temperature will store absorbed energy for an appreciable time but will release the predominant portion of the stored energy spontaneously.
? A fluorescent phosphor will release the predominant portion of the absorbed energy as emission radiant energy substantially simultaneously with exposure to the exciting radiant energy.
용도
The major usage of SrSe has been as an infrared stimulable phosphor. Photoluminescent materials useful for detection of infrared light are prepared using a base material, such as SrSe. Up to three dopants, Sm3+, cerium, Ce3+ and Eu2+ compounds are used for the purpose of providing electron traps. The base material can be a combination of alkaline earth metal selenides such as strontium selenide, calcium selenide, or a mixture of these. Luminescence is a long known phenomenon of nature reaching back very far in history. Recorded observations reach back to the last century. Seeback and Becquerel observed momentary visible afterglow in certain materials.Synthesis
Pure SrSe is best obtainedfrom the selenite by high-temperature reduction with NH3.SrSeO3 + 2NH3 = SrSe + 3 H2O + N2
셀레나이드 스트론튬 준비 용품 및 원자재
원자재
준비 용품
셀레나이드 스트론튬 공급 업체
글로벌( 42)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 |
sales@tnjchem.com | China | 34571 | 58 |
GIHI CHEMICALS CO.,LIMITED | +8618058761490 |
info@gihichemicals.com | China | 49999 | 58 |
SUZHOU SENFEIDA CHEMICAL CO.,LTD | +86-0512-83500002 +8615195660023 |
sales@senfeida.com | China | 23053 | 58 |
Mainchem Co., Ltd. | +86-0592-6210733 |
sale@mainchem.com | China | 32360 | 55 |
Alfa Aesar | 400-6106006 |
saleschina@alfa-asia.com | China | 30132 | 84 |
Energy Chemical | 021-021-58432009 400-005-6266 |
sales8178@energy-chemical.com | China | 44700 | 61 |
Beijing HuaMeiHuLiBiological Chemical | 010-56205725 |
waley188@sohu.com | China | 12338 | 58 |
Shanghai Meishui Chemical Technology Co., Ltd | 021-60549325 18616193163 |
China | 4528 | 56 | |
Chengdu HuaXia Chemical Reagent Co. Ltd | 400-1166-196 13458535857 |
cdhxsj@163.com | China | 13359 | 58 |