| CESIUM HYDROXIDE 50% SOLUTION | ||
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PRODUCT IDENTIFICATION |
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| CAS NO. | 21351-79-1 |
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| EINECS NO. | 244-344-1 | |
| FORMULA | CsOH | |
| MOL WT. | 149.91 | |
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H.S. CODE |
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TOXICITY |
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SYNONYMS |
Cesium hydrate; Cesium hydroxide dimer; | |
| Hidróxido de cesio (Spanish); Hydroxyde de cesium (French); | ||
| DERIVATION | ||
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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PHYSICAL STATE |
white crystals | |
| MELTING POINT | 272 C | |
| BOILING POINT | ||
| SPECIFIC GRAVITY | 1.72 - 1.73 (50% Solution) | |
| SOLUBILITY IN WATER | Highly soluble | |
| pH |
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| VAPOR DENSITY | 5.16 | |
| AUTOIGNITION |
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| NFPA RATINGS |
Health: 3; Flammability: 0; Reactivity: 0 | |
| REFRACTIVE INDEX |
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| FLASH POINT |
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| STABILITY | Stable under ordinary conditions. Hygroscopic. | |
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APPLICATIONS |
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| Cesium salts are used as mediums of density gradient centrifugation for DNA recovery and purification (high purity of cesium chloride, cesium sulfate, cesium trifluoroacetate) and as metal oxide catalyst enhancer for heterogeneous processes due to their ability to lower down high oxidation states of transition metal oxo anions. Some salts (cesium bromide, iodide and fluoride) are used in scintillation counters and infrared spectroscopies as they absorb x-rays, gamma and particle radiation, and emit visible light. Industrial application of cesium salts include manufacturing specialty glasses (surface ion exchange with cesium salts improves corrosion or breakage resistance of glasses ) and in photoelectric cells, in optical instruments, for photosensitive deposit on cathodes and in filaments of electron tubes to increase sensitivity (cesium chlorite, carbonate, sulfate, nitrate, perchlorate). Cesium chloride is used in titanium dioxide manufacturing. They are used as components for propellants and drilling grouts. Cesium sulfate and fluoride are used for brewing and in mineral waters. Cesium Hydroxide is used as electrolyte in alkaline batteries at subzero temperatures, color photography and as a catalyst in organic synthesis. | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
clear liquid | |
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ASSAY |
99.5% (metals basis) | |
| Cs CONTENT | 44.33% | |
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K |
500ppm max | |
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Rb |
3000ppm max | |
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Ca |
50ppm max | |
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Al |
100pm max | |
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Cl |
300ppm max | |
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Na |
300ppm max | |
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SO4 |
500ppm max | |
| TRANSPORTATION | ||
| PACKING | 300kgs in drums | |
| HAZARD CLASS | 8 (Packing Group: III) | |
| UN NO. | 2681, 2682 | |
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OTHER INFORMATION |
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| Hazard Symbols: C, Risk Phrases: 35, Safety Phrases: 26-37/39-45 | ||
