- RUBIDIUM BROMIDE
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- $10.00 / 1KG
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2026-01-05
- CAS:7789-39-1
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 10 mt
- Rubidium Bromide
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- $120.00 / 1kg
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2025-04-15
- CAS:7789-39-1
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 20ton
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| | RUBIDIUM BROMIDE Basic information |
| | RUBIDIUM BROMIDE Chemical Properties |
| Melting point | 693 °C | | Boiling point | 1340 °C | | density | 3.35 g/mL at 25 °C (lit.) | | refractive index | 1.5530 | | Fp | 1340°C | | form | crystal | | color | white | | Specific Gravity | 3.35 | | Water Solubility | Soluble in water | | Sensitive | Hygroscopic | | Merck | 14,8283 | | Dielectric constant | 4.8499999999999996 | | Stability: | Stable. Incompatible with strong acids. | | InChI | 1S/BrH.Rb/h1H;/q;+1/p-1 | | InChIKey | JAAGVIUFBAHDMA-UHFFFAOYSA-M | | SMILES | [Br-].[Rb+] | | CAS DataBase Reference | 7789-39-1(CAS DataBase Reference) | | EPA Substance Registry System | Rubidium bromide (RbBr) (7789-39-1) |
| Safety Statements | 22-24/25 | | WGK Germany | 3 | | TSCA | TSCA listed | | HS Code | 2827590000 | | Storage Class | 11 - Combustible Solids |
| | RUBIDIUM BROMIDE Usage And Synthesis |
| Description | Rubidium bromide (RbBr) is a hygroscopic material, which is generally similar to the other rubidium halides.
Rubidium bromide is the bromide of rubidium. It has a NaCl crystal structure, with a lattice constant of 685 picometres.
There are several methods for synthesising rubidium bromide. One involves reacting rubidium hydroxide with hydrobromic acid:
RbOH + HBr → RbBr + H2O
Another method is to neutralize rubidium carbonate with hydrobromic acid:
Rb2CO3 + 2 HBr → 2 RbBr + H2O + CO2
Rubidium metal would react directly with bromine to form RbBr, but this is not a sensible production method, since rubidium metal is substantially more expensive than the carbonate or hydroxide; moreover, the reaction would be explosive. | | Chemical Properties | white crystalline powder | | Uses | Rubidium bromide is used in infrared optics. | | Synthesis | There are many ways to synthesize rubidium bromide. One is the reaction of rubidium hydroxide with hydrogen bromide: RbOH + HBr → RbBr + H2O ;
Another method is to neutralize rubidium carbonate with hydrogen bromide: Rb2CO3 + 2HBr → 2RbBr + H2O + CO2
| | Purification Methods | The bromide is a white crystalline powder which crystallises from H2O (solubility: 50% in cold and 67% in boiling H2O to give a neutral solution). It also crystallises from near-boiling water (0.5mL/g) by cooling to 0o. |
| | RUBIDIUM BROMIDE Preparation Products And Raw materials |
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