Name | Rubidium fluoride |
Synonyms | Rubidium fluoride RUBIDIUM FLUORIDE Rubidium monofluoride Rubidium fluoride (RbF) Rubidium fluoride(85Rb) Rubidium fluoride (metals basis) |
CAS | 13446-74-7 |
EINECS | 236-603-2 |
InChI | InChI=1/FH.Rb/h1H;/q;+1/p-1 |
Molecular Formula | FRb |
Molar Mass | 104.47 |
Density | 3.557 g/mL at 25 °C(lit.) |
Melting Point | 775°C |
Boling Point | 1410°C |
Water Solubility | soluble |
Solubility | ethanol: insoluble(lit.) |
Vapor Presure | 922mmHg at 25°C |
Appearance | Crystalline |
Specific Gravity | 3.557 |
Color | White |
Exposure Limit | ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 |
Stability | Stable. Hygroscopic. Non-flammable, but HF may be released in a fire. Incompatible with acids. |
Sensitive | Hygroscopic |
Refractive Index | 1.398 |
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R40 - Limited evidence of a carcinogenic effect R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. 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.) S22 - Do not breathe dust. |
UN IDs | UN3288 |
WGK Germany | 3 |
RTECS | VL8740000 |
TSCA | Yes |
HS Code | 28261990 |
Hazard Note | Irritant |
Hazard Class | 6.1 |
Packing Group | III |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
preparation | Rubidium fluoride is obtained by adding Rubidium carbonate to a hydrofluoric acid solution, driving off carbon dioxide by heating, and evaporating and crystallizing. |
Introduction | Rubidium fluoride is a colorless cubic crystal. Toxic! The melting point is 795 ℃, the boiling point is 1410 ℃, the relative density is 3.557, and the refractive index is 1.398. Very soluble in water, soluble in dilute hydrofluoric acid solution, insoluble in ethanol, ether and ammonia. Its hydrofluoric acid solution shows strong acidity and can corrode glass. |
solubility in water (g/100ml) | grams dissolved per 100ml of water: 300g/20 ℃ |
Use | raw materials for the preparation of metal rubidium and various rubidium salts, production of catalysts, miniature high-energy batteries and crystal scintillation counters. |
category | toxic substances |
toxicity grade | poisoning |
Acute toxicity | Reference range: oral-rat LD50: 4440 mg/kg; Oral-mouse LD50: 3800 mg/kg |
flammability hazard characteristics | non-combustible; Toxic hydrogen fluoride gas emitted in case of acid; toxic fluoride and rubidium oxide smoke from heat |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from acids and food additives |
Occupational Standard | TLV-TWA 2.5 mg (fluorine)/m3; Tel 5 mg (fluorine)/M3 |