세슘 염화물
세슘염화물 · 염화세슘 · 세슘클로라이드 · CSCL · CAESIUM CHLORIDE · Cesium chloride, for analysis · Cesium chloride anhydrous, free-flowing, Redi-Dri, ReagentPlus, 99.9% · Cesium chloride anhydrous, free-flowing, Redi-Dri(TM), ReagentPlus(R), 99.9%
식별자 및 물리적 특성
| CAS No. | 7647-17-8 |
|---|---|
| 분자식 | ClCs |
| 평균 분자량 | 168.36 g/mol |
| 단동위원소 질량 | 167.87430458 g/mol |
| SMILES | [Cl-].[Cs+] |
| InChIKey | AIYUHDOJVYHVIT-UHFFFAOYSA-M |
| PubChem CID | 24293 |
| ChEMBL | CHEMBL4460016 |
| ChEBI | CHEBI:63039 |
| EC No. | 231-600-2 |
| DTXSID | DTXSID3040435 |
| 현지명 | 세슘 염화물 |
화학 및 물리적 성질
| 극성 표면적 | 0 |
|---|---|
| 수소 결합 공여자 수 | 0 |
| 수소 결합 수용자 수 | 1 |
| 회전 가능 결합 수 | 0 |
| 무거운 원자 수 | 2 |
| 형식 전하 | 0 |
| 복잡도 | 2 |
| 물질 분류 | Metals -> Metals, Inorganic Compounds |
| SpringerMaterials Properties | electron density of states |
| 밀도 | 3.9883.99 @25 °C3.988 g/cm3 |
| Color/Form | Colorless crystals |
| 용해도 | Soluble in ethanolInsoluble in acetoneVery sol in methanolIn water, 1.86 kg/liter @ 20 °C2.7 kg/liter @ 100 °C1.62 kg/liter @ 0 degH2O: 3 M at 20 °C, 투명, 무색 |
| 끓는 점 | 1290 °C (sublimes)1297 °C @760 [mm Hg] |
| 녹는점 | 646 °C645 °C (lit.) |
| Physical Description | Colorless crystals. [HSDB] |
| Other Experimental Properties | Deliquenscentundergoes transition to high-temperature polymorph at 4 °Cwhen heated to decomposition emits toxic fumes of Cl. |
| 증기 밀도 | 5.8 (vs air) |
| 굴절률 | 1.6418 |
| 인화점 | 1303°C |
| 저장 조건 | Store at +5°C to +30°C. |
| 물리적 상태 | 염주 |
| 색상 | 하얀색 |
| 비중 | 3.988 |
| pH | 5.0-7.5 (25℃, 3M in H2O) |
| 냄새 | 냄새 없는 |
| 용해도 | 1860 g/L (20 ºC) |
| 비열 | Cp(crystal): 0.31 J/(g·K), at 25℃ |
| Merck | 14,2011 |
| 안정성 | 안정적인. 습기에 노출되면 분해됨. 강한 산화제, 강산과 호환되지 않습니다. 습기로부터 보호하십시오. |
| InChI | 1S/ClH.Cs/h1H/q+1/p-1 |
| InChIKey | AIYUHDOJVYHVIT-UHFFFAOYSA-M |
| SMILES | [Cl-].[Cs+] |
| NIST | Cesium chloride(7647-17-8) |
| EPA | Cesium chloride (CsCl) (7647-17-8) |
| Absorption | ≤0.2 at 280 in H2O at 50% |
화학적 성질
Cesium chloride (CsCl) is an inorganic, colorless, hygroscopic crystalline powder. It has a large mass and is highly soluble in water (1865 g/L). Due to its hygroscopic characteristic, when put in water, it forms a dense solute that is not very viscous. Therefore, it is a good material for equilibrium gradient differential centrifugation where the separation of the particles is size and density dependent.Cesium Chloride is a type of unit cell that is commonly mistaken as Body-Centered Cubic. This misconception is easy to make, since there is a center atom in the unit cell, but CsCl is really a non-closed packed structure type.
안전 및 규제
| GHS 분류 | This chemical does not meet GHS hazard criteria for 28.4% (69 of 243) of reports.WarningH361 (50.6%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]P203, P280, P318, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 243 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| 규제 정보 | Chemical: Cesium chloride (CsCl)Status: Active Update: 04-04-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/10582Caesium chloride: Does not have an individual approval but may be used under an appropriate group standard |
| 기타 안전 정보 | Evaluation - Cesium salts |
| 유해성 요약 | Animal feeding studies: cesium is relatively nontoxicA man who ingested 34 mg/kg of cesium chloride after morning and evening meals for 36 days experienced anorexia, nausea, and diarrhea. EKG changes have been described in patients after ingestion of cesium chloride as a homeopathic remedy. [ATSDR ToxProfiles] See Cesium and Cesium, radioactive. |
| History and Incidents | /Goiania Radiation Incident/ On September 13, 1987, two scavengers found an abandoned teletherapy device in an abandoned medical clinic in Goiania, Brazil. The machine contained a radioactive 137Cs source with an activity of 1,375 Ci (0.9 TBq) in the form of powdered and soluble 137CsCl. After removing the source from its shield, they took it home and, in a crude attempt to break it apart, managed to rupture the source and spread pieces about the property. Both became ill within hours. Either 1 or 5 days later, according to various versions of the story, the device became the property of a junk dealer. This dealer noticed a luminescence emanating from the unit and used tools to cut the unit apart to gain access to the material inside. The rupture allowed the 137CsCl powder to disperse easily and be further distributed by wind suspension and rainwater runoff. Several land areas and 129 people were significantly contaminated, resulting in four deaths. The accident primarily exposed or contaminated about 80 people, who were all related, and an additional 170 were later contaminated to much lower levels. Initially, 11 individuals who had handled the source and who were the most highly contaminated were taken to the Hospital Twenty-two people were evacuated from contaminated homes and others who were in the vicinity were encouraged to /leave/ . In a prioritized manner, the contaminated victims were provided with medical care, clean clothing, nourishment and orientation, and contamination monitoring |
용도
용도
Cesium chloride is used in radio and television vacuum tubes. It also is used in ultracentrifuge separations; x-ray fluorescent screens; as radiogrpahic contrast medium, and to prepare cesium and other cesium salts.Used for the preparation of electrically conducting glasses.Used to make solutions for the separation of RNA from DNA by density gradient centrifugation.For molecular genetic applications used in preparing nucleic acids for subsequent hybridization or cloning experiments.
용도
Cesium chloride has been used in density gradient centrifugation and for fractionation of nucleic acids, ribosomal subunits, proteins, glycoproteins, and viruses. Cesium chloride can also be used as a raw material to prepare other cesium compounds, such as cesium chloride reacts with nitric acid and oxalate to prepare cesium carbonate. It can be applied to the discharge tube (positive ion provided by the filament surface) fluorescent screen and used as a contrast agent. It effectively prevents activation of caspase-3 and neuronal apoptosis in serum- and potassium-deprived cerebellar granule neurons by inactivating GSK-3β.
일반 설명
Cesium chloride is a cesium halide. Cesium halides can be prepared by reacting cesium carbonate with corresponding hydrohalic acids. Cesium chloride ultracentrifugation method has been reported for the extraction of RNA from cellular fractions.
제조 및 합성 방법
제조 방법
Cesium chloride (CsCl) is produced by the reaction of cesium metal with chlorine gas (Ca+ + Cl- → CsCl). It is also used in the beer brewing industry, to coat fluorescent screens, and to improve the taste of mineral water.