RUBIDIUM HYDROXIDE
rubidium hydroxide
CAS: 1310-82-3
Molecular Formula: HORb
RUBIDIUM HYDROXIDE - Names and Identifiers
| Name | rubidium hydroxide |
| Synonyms | RbOH RUBIDIUM HYDROXIDE rubidium hydroxide Rubidium hydroxide RUBIDIUM HYDROXIDE MONOHYDRATE RUBIDIUM HYDROXIDE HYDRATE, FUSED SOLID |
| CAS | 1310-82-3 |
| EINECS | 215-186-0 |
| InChI | InChI=1/H2O.Rb/h1H2;/q;+1/p-1 |
RUBIDIUM HYDROXIDE - Physico-chemical Properties
| Molecular Formula | HORb |
| Molar Mass | 102.48 |
| Density | 1.74g/mLat 25°C |
| Melting Point | 300-302°C |
| Boling Point | 100°C at 760 mmHg |
| Water Solubility | soluble |
| Vapor Presure | 24.5mmHg at 25°C |
| Appearance | Liquid |
| Color | Pale yellow |
| Merck | 14,8285 |
| Storage Condition | Room Temprature |
| Sensitive | Hygroscopic |
RUBIDIUM HYDROXIDE - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R34 - Causes burns R22 - Harmful if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2677 8/PG 2 |
| WGK Germany | 3 |
| RTECS | VL8750000 |
| TSCA | Yes |
| HS Code | 28259085 |
| Hazard Class | 8 |
| Packing Group | II |
RUBIDIUM HYDROXIDE - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Strong alkali | Rubidium hydroxide aqueous solution is more alkaline than potassium hydroxide. It is the second strongest alkali known and only reacts with acid, not with Alkali reaction, chemical formula RbOH. Molecular weight 102.48. Gray-white solid, often lumpy, has strong water absorption, easy deliquescence. Specific gravity 3.203. Melting point 301±0.9 ℃. Soluble in water. The hot concentrated solution can quickly react with nickel and silver. The aqueous solution can be dehydrated into anhydrous when heated to 400 ℃ in a platinum dish under reduced pressure. Both its solid and solution can absorb carbon dioxide from the air. It is obtained by the reaction of rubidium sulfate and barium hydroxide. It can be used as an electrode in a low-temperature storage battery and a catalyst for oxidation and chlorination. The metal rubidium reacts explosively with water to generate rubidium hydroxide and release hydrogen. Chlorine gas is introduced into the mixed solution of rubidium iodide and rubidium hydroxide, and rubidium chloride and rubidium iodate crystals can be generated after heating. Rubidium sulfate reacts with barium hydroxide to generate rubidium hydroxide and precipitate white barium sulfate. Rubidium carbonate is prepared by the reaction of rubidium hydroxide and carbon dioxide or by heating and decomposition of rubidium oxalate or rubidium oxalate. |
| Rubidium hydroxide related chemical reaction | When rubidium hydroxide and magnesium are heated in a hydrogen stream, metal rubidium and magnesium oxide can be generated, and hydrogen is released. Rubidium hydroxide reacts with chlorine to generate rubidium hypochlorite when not heated; rubidium chlorate is generated when heated; both can generate rubidium chloride and water at the same time. 2RbOH Cl2 = RbOCl RbCl H2O 6RbOH 3Cl2 = RbClO3 5RbCl 3H2O Rubidium hydroxide reacts with acid to form the corresponding rubidium salt and water. rubidium hydroxide reacts with aluminum hydroxide to generate rubidium tetrahydroxyaluminum (Ⅲ) acid. RbOH Al(OH)3 = Rb[Al(OH)4] under heating, rubidium hydroxide reacts with ammonium chloride to generate rubidium chloride and water, and release ammonia gas. RbOH NH4CL = RbCl NH3 H2O rubidium hydroxide reacts with metal chloride to generate rubidium chloride and corresponding hydroxide or oxide. rubidium hydroxide reacts with acidic oxide to generate water and corresponding rubidium salt. 2RbOH CO2 = Rb2CO3 H2O 2RbOH CrO3 = Rb2CrO4 H2O |
| solubility in water (g/100ml) | dissolved grams per 100ml of water: 180g/20 ℃ |
| use | rubidium hydroxide is generally used to produce metal rubidium and various rubidium salts raw materials, catalyst production, micro high-energy batteries, rubidium-containing single crystal raw materials, special glass and ceramic industry and other fields. |
| production method | 1. barium sulfate precipitate can be generated by the interaction of rubidium sulfate and barium hydroxide, which is obtained by filtration as mother liquor containing rubidium hydroxide, evaporation, concentration, crystallization and drying. 2. React rubidium sulfate with equimolar barium hydroxide to produce rubidium hydroxide. Rubidium sulfate reacts with an aqueous solution of barium hydroxide. After the reaction is completed, filter, place the filtrate in a platinum dish, and evaporate and concentrate in a vacuum evaporator equipped with solid potassium hydroxide. It is then placed in a silver boat and gradually heated to 300°C in a dry hydrogen (without CO2) stream to remove water. Sealed preservation. Rubidium chloride can also be used for electrolysis to produce rubidium hydroxide. |
| category | corroded articles |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 586 mg/kg; Oral-mouse LD50: 900 mg/kg |
| flammability hazard characteristics | release a large amount of heat to support combustion when exposed to water; Combustible hydrogen is released in case of metal; Combustible ammonia is released in case of ammonia salt |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from acids, metals, ammonia salts and flammable materials |
| fire extinguishing agent | water, sand |
Last Update：2024-04-09 21:21:28
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