Thorium(IV) nitrate tetrahydrate.
- русский язык имя
- английское имяThorium(IV) nitrate tetrahydrate.
- CAS №33088-16-3
- CBNumberCB31252917
- ФормулаTh(NO3)4·6H2O
- мольный вес0
- файл Mol33088-16-3.mol
химическое свойство
| Температура плавления | decomposes at 500℃ [HAW93] |
| растворимость | soluble in ethanol |
| форма | white hygroscopic crystals |
| цвет | white hygroscopic crystals, crystalline |
| Растворимость в воде | very soluble H2O, alcohol [MER06] |
Thorium(IV) nitrate tetrahydrate. химические свойства, назначение, производство
Химические свойства
white crystal(s); slightly deliquescent; used in thoriated tungsten filaments and as a reagent for fluoride determination [HAW93] [MER06]Физические свойства
The tetrahydrate is a white crystalline mass; hydgroscopic; decomposes at about 500°C; very soluble in water; soluble in ethanol.Использование
Thorium nitrate is a reagent for measuring fluorine and for making thoriated tungsten filaments. Thorium nitrate containing 1% cerium nitrate is the impregnating liquid in making incandescent gas mantles.Подготовка
Thorium nitrate is obtained as an intermediate in making thorium metal from monazite sand. Also, the salt is prepared by heating thorium metal or its oxide or hydroxide with nitric acid, followed by evaporation of the solution and crystallization.Опасность
Thorium nitrate is highly toxic by ingestion and other routes of exposure. The compound also is a radiation hazard.