CONTACT US

Our Address

Science Avenue, High-tech Zone, Zhengzhou City, Henan Province, China

  • Rubidium - Wikipedia

    OverviewCharacteristicsProductionHistoryApplicationschemical element with atomic number 37 Chemical element with atomic number 37 Rubidium, 37Rb Rubidium Pronunciation/ruːˈbɪdiəm/ Appearancegrey white Standard atomic weight Ar, std85.4678 Rubidium in the periodic table Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium
  • Sample Preparation Guides - Inorganic Ventures

    The Metals. The alkali metals, lithium (Li), sodium (Na), potassium (K), rubidium (Rb) and cesium (Cs), are all extremely light in weight, compressible, and relatively, very soft.Lithium is the hardest of the alkali metals with a hardness of 0.6 on Mohs' scale. Freshly cut surfaces of the alkali metals show a silvery white luster, which tarnishes quickly and becomes dull in air.

  • Caesium - Wikipedia

    OverviewCharacteristicsProductionHistoryApplicationsHealth and safety hazardsNotesExternal links

    Caesium is the softest element (it has a hardness of 0.2 Mohs). It is a very ductile, pale metal, which darkens in the presence of trace amounts of oxygen. When in the presence of mineral oil (where it is best kept during transport), it loses its metallic lustre and takes on a duller, grey appearance. It has a melting point of 28.5 °C (83.3 °F), making it one of the few elemental metals that are liquid near room temperature. Mercuryis the only stable elemental metal with a known melting point lower than caesium. In addition, t

  • Wikipedia CC-BY-SA 许可下的文字
  • Lithium, Sodium, Potassium, Rubidium, Caesium and

    This chapter discusses the discovery, isolation, abundance, and distribution of the alkali metals—lithium, sodium, potassium, rubidium, cesium, and francium. The group 1 elements are soft, low-melting metals that crystallize with bcc lattices. All elements are silvery-white except cesium, which is golden yellow in color. Lithium is harder than sodium but softer than lead. The chapter ...

  • The Chemistry of Lithium, Sodium, Potassium, Rubidium ...

    The Chemistry of Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium studies the physical and chemical properties of the elements listed in the title, including their chemical compounds and reactions. This book first features lithium, including its characterization, metals, and compounds. This topic is followed by discussions on the remaining featured elements in this text, encompassing ...

  • The Alkali Metals MarketCap

    They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr). They are called alkali metals because they all react, often violently, with water to form alkalis or bases, such as sodium hydroxide. The alkali metals are excellent conductors of electricity and heat. They have low melting points, with the lowest being cesium at 28.5 o C, the melting point of ...

  • alkali metal Definition, Properties, Facts Britannica

    Rubidium and cesium and their compounds have limited use, but cesium metal vapour is used in atomic clocks, which are so accurate that they are used as time standards. History. Alkali metal salts were known to the ancients. The Old Testament refers to a salt called neter (sodium carbonate), which was extracted from the ash of vegetable matter.

  • The Alkali Metals MarketCap

    They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr). They are called alkali metals because they all react, often violently, with water to form alkalis or bases, such as sodium hydroxide. The alkali metals are excellent conductors of electricity and heat. They have low melting points, with the lowest being cesium at 28.5 o C, the melting point of ...

  • The Chemistry of Lithium, Sodium, Potassium, Rubidium ...

    Sodium, Potassium, Rubidium, Cesium and Francium 1. Discovery and History 2. Occurrence and Distribution 3. Production and Industrial Use of Metals 4. Nuclear Properties 5. Physical Properties of the Metals 6. Chemistry and Chemical Properties Reactions of the Metals Inter-metallic Compounds Hydrides Halides Cyanides and Cyanates Oxides and Peroxides Hydroxides and Oxyacids Sulphides ...

  • Rubidium Alternative Health Research - Essense of Life

    Alkali metals include lithium, sodium, potassium, rubidium and cesium. 10 Dietary Sources of Rubidium: Brazil nuts, spinach, parsley, billberry fruit, rhubarb, dandelion leaves, cashews and beets. Learn More About Rubidium. The High pH Therapy for Cancer Tests on Mice and Humans. Mass spectrographic and isotope studies have shown that potassium, rubidium, and especially cesium are

  • Solved: Alkali Metals Alkaline Earth Metals Element Lithiu ...

    Alkali Metals Alkaline Earth Metals Element Lithium Sodium Potassium Rubidium Cesium Oxygen Group Symbol Li Na K Rb Cs Atom Radius pm 152 186 227 248 265 + len Radius pm 90 116 152 166 181 Element Beryllium Magnesium Calcium Strontium Barium Symbol Be Mg Ca Sr Ba Atom Radius pm 112 160 197 215 222 +2 ion Radius pm 59 85 114 132 149 Halogens Atom Radius pm Element

  • Sodium, Rubidium, and Cesium Ozonides,

    Investigation of the interaction of ozone and potassium hydroxide has shown that the reaction product is a formerly unknown higher oxide of potassium, potassium oxonide KO3. It was then assumed that similar oxides are formed by the other alkali metals. In the reaction between ozone and sodium, rubidium and cesium hydroxides, as is well known, these materials assume an orange color just as KOH ...

  • What do lithium, sodium, potassium, rubidium, and

    Lithium, sodium, potassium, rubidium, and cesium are all part of a group called the alkali metals. They are all found in group 1 of the periodic table.

  • Locate the row containing lithium (Li), sodium (Na ...

    Locate the row containing lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs). Look up these elements in the periodic table e, and click each element to reveal its properties. Explain why Mendeleev might have grouped these elements together.

  • It's Elemental - The Element Cesium

    To obtain pure cesium, cesium and rubidium ores are crushed and heated with sodium metal to 650°C, forming an alloy that can then be separated with a process known as fractional distillation. Metallic cesium is too reactive to easily handle and is usually sold in the form of cesium azide (CsN 3). Cesium is recovered from cesium azide by heating it. Cesium has the second lowest melting point ...

  • What do lithium sodium potassium rubidium cesium and ...

    Cesium, Francium, Lithium, Potassium, Rubidium, Sodium Load More Periodic Table Acids and Bases Alkali Metals Science Chemistry Metal and Alloys Physics Atoms and Atomic Structure Elements and ...

  • Rubidium hydroxide - WikiMili, The Best Wikipedia Reader

    Sodium hydroxide; Rubidium; Related Research Articles. The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). Together with hydrogen they constitute group 1, which lies in the s-block of the periodic table. All alkali metals have their outermost electron in an s-orbital: this shared electron configuration ...

  • Locate the row containing lithium (Li), sodium (Na ...

    Locate the row containing lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs). Look up these elements in the periodic table e, and click each element to reveal its properties. Explain why Mendeleev might have grouped these elements together.

  • Sodium, Rubidium, and Cesium Ozonides,

    Investigation of the interaction of ozone and potassium hydroxide has shown that the reaction product is a formerly unknown higher oxide of potassium, potassium oxonide KO3. It was then assumed that similar oxides are formed by the other alkali metals. In the reaction between ozone and sodium, rubidium and cesium hydroxides, as is well known, these materials assume an orange color just as KOH ...

  • Rubidium chloride has the sodium chloride structure at ...

    Rubidium chloride has the sodium chloride structure at normal pressures but assumes the cesium chloride structure at high pressures. (See Exercise 69.) What ratio of densities is expected for these two forms? Does this change in structure make sense on the basis of simple models? The ionic radius is 148 pm for Rb + and 181 pm for CI − .

  • Is Cesium Chloride Safe? Learn the Facts I The Essential ...

    7/09/2018  On the periodic table of elements, cesium, rubidium, potassium, sodium, and lithium are all alkali metals. Due to cancer cell membrane potential (electrical charge which affects permeability), potassium, which transports glucose, can readily enter cancer cells, but calcium, which transports oxygen, cannot. According to Dr. Brewer in his research on cesium chloride and high pH therapy,

  • Compare Rubidium vs Potassium Compare properties

    Rubidium's main application is in the glass manufacturing. Rubidium can very easily get ionized and hence it is used for ion engines, but it is still less efficient than that of Caesium. Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.

  • Rubidium chemical element Britannica

    Rubidium and cesium are miscible in all proportions and have complete solid solubility; a melting-point minimum of 9 °C (48 °F) is reached. Rubidium forms a number of mercury amalgams. Because of the increased specific volume of rubidium, as compared with the lighter alkali metals, there is a lesser tendency for it to form alloy systems with other metals. Element Properties; atomic number ...

  • 13 Rubidium Cesium - Wiley Online Library

    In chemical behavior rubidium resembles sodium and potassium and reacts violent-ly with water. It is a widely distributed element, usually associated with other alkali metals in minerals. The rate of radioactive decay of the isotope 87Rb can be used in geological age determination (see Chapter 4 Geochemistry). Rubidium is found in small quantities in tea, coffee, tobacco and other plants ...

  • Rubidium Supplement The Essential Health Blog

    Alkali Metals include Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium. Alkali Metals have one electron in the outer shell that is easily given off. Alkali Metals become +1 charged cations (any positively charged ion is called a cation) when they give away an electron. Alkali Metals form ionic bonds with nonmetals. (They give up the outer electron.) Rubidium from Staying Healthy With ...

  • Where is cesium found in the world? AnswersDrive

    Cesium is a member of the alkali family, which consists of elements in Group 1 (IA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to each other. The alkalis include lithium, sodium, potassium, rubidium, and francium. Cesium

  • The Physiological Behavior of Rubidium and Cesium in ...

    TOSTESON DC. The effects of sickling on ion transport. II. The effect of sickling on sodium and cesium transport. J Gen Physiol. 1955 Sep 20; 39 (1):55–67. [PMC free article] TYOR MP, ELDRIDGE JS. A comparison of the metabolism of rubidium 86 and potassium 42 following simultaneous injection into man. Am J Med Sci. 1956 Aug; 232 (2):186–193.

  • 位置: 8600 Rockville Pike, Bethesda, MD
  • (PDF) Cesium and rubidium ion equilibria in illite clay

    The ion-exchange selectivity of cesium and rubidium ions is studied in illite clay, saturated with either calcium, strontium, barium, sodium or potassium ions. The cesium- and rubidium-exchange ...

  • Rubidium chemical element Britannica

    Rubidium and cesium are miscible in all proportions and have complete solid solubility; a melting-point minimum of 9 °C (48 °F) is reached. Rubidium forms a number of mercury amalgams. Because of the increased specific volume of rubidium, as compared with the lighter alkali metals, there is a lesser tendency for it to form alloy systems with other metals. Element Properties; atomic number ...

  • VAPOR PRESSURE OF ALKALI METALS. RUBIDIUM,

    RUBIDIUM, CESIUM, AND SODIUM-POTASSIUM ALLOY (NaK) UP TO 100 PSI}, author = {Bonilla, C F and Sawhney, D L and Makansi, M M}, abstractNote = {The vapor pressures of high-purity cesium, rubidium, and NaK (sodium-- potassium alloy) of 30.6 wt % sodium were measured from roughly 1 to 100 lb psi abs. The method employed boiling under argon, in a small capsule to ensure temperature

  • Rubidium chloride has the sodium chloride structure at ...

    Rubidium chloride has the sodium chloride structure at normal pressures but assumes the cesium chloride structure at high pressures. (See Exercise 69.) What ratio of densities is expected for these two forms? Does this change in structure make sense on the basis of simple models? The ionic radius is 148 pm for Rb + and 181 pm for CI − .

  • Cesium Cs (Element) - PubChem

    To obtain pure cesium, cesium and rubidium ores are crushed and heated with sodium metal to 650°C, forming an alloy that can then be separated with a process known as fractional distillation. Metallic cesium is too reactive to easily handle and is usually sold in the form of cesium azide (CsN 3). Cesium is recovered from cesium azide by heating it. Jefferson Lab, U.S. Department of Energy ...

  • Alkali Metals - body, used, water, Earth, life, chemical ...

    Rubidium and cesium are much less common than are sodium and potassium, ranking numbers 23 and number 45, respectively, in abundance. Both elements also have relatively few practical applications. Rubidium is employed primarily in various kinds of chemical research. One of its compounds has been used to treat patients with depression. In addition, some kinds of glass and radiation detection ...

  • Rubidium Supplement The Essential Health Blog

    Alkali Metals include Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium. Alkali Metals have one electron in the outer shell that is easily given off. Alkali Metals become +1 charged cations (any positively charged ion is called a cation) when they give away an electron. Alkali Metals form ionic bonds with nonmetals. (They give up the outer electron.) Rubidium from Staying Healthy With ...

  • Where is cesium found in the world? AnswersDrive

    Cesium is a member of the alkali family, which consists of elements in Group 1 (IA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to each other. The alkalis include lithium, sodium, potassium, rubidium, and francium. Cesium

  • Reactions of Group 1 Elements with Water - Chemistry ...

    All of Group 1 elements—lithium, sodium, potassium, rubidium and cesium react vigorously or even explosively with cold water. In each case, the aqueous metal hydroxide and hydrogen gas are produced, as shown: \[ 2X (s) + 2H_2O (l) \rightarrow 2XOH (aq) + H_2 (g)\] where \(X\) is any Group 1 metal. In each of the following descriptions, a very small portion of the metal is dropped into a ...