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ルビジウム

ルビジウム 化学構造式
7440-17-7
CAS番号.
7440-17-7
化学名:
ルビジウム
别名:
ルビジウム;金属ルビジウム;ルビジウム (99.9+%) (breakseal ampoule);ルビジウム (99+%) (prescored ampoule)
英語化学名:
RUBIDIUM
英語别名:
37Rb;Rubidio;RUBIDIUM;Chebi:33322;rubidium atom;MUELLER HINTON;RUBIDIUM METAL;RUBIDIUM: 99.9%;Rubidium powder;RUBIDIUM STANDARD
CBNumber:
CB7350298
化学式:
Rb
分子量:
85.47
MOL File:
7440-17-7.mol

ルビジウム 物理性質

融点 :
38-39 °C(lit.)
沸点 :
686 °C(lit.)
比重(密度) :
1.53 g/mL at 25 °C(lit.)
外見 :
ingot
色:
Silver
比重:
1.532
電気抵抗率 (resistivity):
11.0 μΩ-cm, 20°C
水溶解度 :
soluble in acids and alcohol [HAW93]
Sensitive :
moisture sensitive
Merck :
13,8363
CAS データベース:
7440-17-7(CAS DataBase Reference)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  Xi,C,F
Rフレーズ  36/37/38-36/38-34-14/15
Sフレーズ  26-36/37/39-43-45-36
RIDADR  UN 2031 8/PG 2
WGK Germany  3
RTECS 番号 VL8500000
TSCA  Yes
国連危険物分類  8
容器等級  III
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H260 水に触れると自然発火するおそれのある可燃性 /引火性ガスを発生 水反応可燃性化学品 1 危険 P223, P231+P232, P280, P335+ P334,P370+P378, P402+P404, P501
H314 重篤な皮膚の薬傷?眼の損傷 皮膚腐食性/刺激性 1A, B, C 危険 P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H318 重篤な眼の損傷 眼に対する重篤な損傷性/眼刺激 性 1 危険 P280, P305+P351+P338, P310
注意書き
P223 激しい反応と火災の発生の危険があるため、水と接 触させないこと。
P231+P232 湿気を遮断し、不活性ガス下で取り扱うこと。
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P303+P361+P353 皮膚(または髪)に付着した場合:直ちに汚染された衣 類をすべて脱ぐこと/取り除くこと。皮膚を流水/シャワー で洗うこと。
P305+P351+P338 眼に入った場合:水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。
P370+P378 火災の場合:消火に...を使用すること。
P405 施錠して保管すること。
P422 内容物を...中で保管すること。

ルビジウム 価格 もっと(10)

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入
富士フイルム和光純薬株式会社(wako) W01SRM37-3736
Rubidium (99.9+%) (breakseal ampoule)
7440-17-7 1g ¥36700 2018-12-26 購入
富士フイルム和光純薬株式会社(wako) W01SRM37-3736
Rubidium (99.9+%) (breakseal ampoule)
7440-17-7 5g ¥59000 2018-12-26 購入
Sigma-Aldrich Japan 276332 ルビジウム ingot, 99.6% trace metals basis
Rubidium ingot, 99.6% trace metals basis
7440-17-7 5g ¥36500 2018-12-25 購入
Sigma-Aldrich Japan 276332 ルビジウム ingot, 99.6% trace metals basis
Rubidium ingot, 99.6% trace metals basis
7440-17-7 1g ¥21400 2018-12-25 購入
富士フイルム和光純薬株式会社(wako) W01SRM93-3735
Rubidium (99+%) (prescored ampoule)
7440-17-7 1g ¥28800 2018-12-26 購入

ルビジウム 化学特性,用途語,生産方法

主な性質

  1. ルビジウムの単体は銀白色の柔らかい金属であり、蒸気は青色を示す
  2. ルビジウムはセシウムと共に電子を放出して+1価のイオンになりやすい
  3. ルビジウムは、空気に触れると直ちに酸素と結合して燃える(空気中ではごく短時間しか金属の形をしていない)
  4. ガラス中の炭酸ルビジウムは電気伝導性を低下させたり、安定性を増す(特殊ガラスや光学ガラス繊維に添加される)

主な用途

  1. 光学ガラス(カメラのレンズ、光学機器部品)
  2. 触媒(石油化学用)
  3. 血液造影剤(医療)
  4. 電子機器部品(磁力計など)

化学的特性

Soft, silvery-white solid. Easily oxidized in air.High heat capacity and heat transfer coefficient. Soluble in acids and alcohol.

物理的性質

Rubidium is a silvery-white lightweight solid at room temperature, but it melts at just38.89°C (102°F), which is just over the human body’s normal temperature. Its boiling pointis 686°C, its density is 1.532 g/cm3, and it has an oxidation state of +1.

同位体

There are 30 isotopes of rubidium, ranging from Rb-75 to Rb-98. Rb-85 is theonly stable form of rubidium and constitutes 72.17% of all rubidium isotopes found inthe Earth’s crust. Rb-87 is radioactive (a half-life of 4.9×1010 years) and makes up about27.83% of the remainder of rubidium found in the Earth’s crust. All the other 28 isotopes make up a tiny fraction of all the rubidium found on Earth and are radioactive withvery short half-lives.

名前の由来

Rubidium is named for the Latin word rubidus, meaning “reddish.

天然物の起源

Rubidium does not exist in its elemental metallic form in nature. However, in compoundforms it is the 22nd most abundant element on Earth and, widespread over most land areasin mineral forms, is found in 310 ppm. Seawater contains only about 0.2 ppm of rubidium,which is a similar concentration to lithium. Rubidium is found in complex minerals and untilrecently was thought to be a rare metal. Rubidium is usually found combined with other Earthmetals in several ores. The lepidolite (an ore of potassium-lithium-aluminum, with traces ofrubidium) is treated with hydrochloric acid (HCl) at a high temperature, resulting in lithiumchloride that is removed, leaving a residue containing about 25% rubidium. Another processuses thermochemical reductions of lithium and cesium ores that contain small amounts ofrubidium chloride and then separate the metals by fractional distillation.

特性

Rubidium is located between potassium and cesium in the first group in the periodic table.It is the second most electropositive alkali element and reacts vigorously and explosively in airor water. If placed on concrete on a sunny day, it would melt and then react violently withmoist air to release hydrogen with enough heat to burn the hydrogen. If a chunk of rubidiummetal is left on a table exposed to the air, it combusts spontaneously. Rubidium must be storedin oil, such as kerosene.

来歴

Rubidium was discovered in 1861 by Bunsen and Kirchhoff in the mineral lepidolite by use of the spectroscope. The element is much more abundant than was thought several years ago. It is now considered to be the 16th most abundant element in the Earth’s crust. Rubidium occurs in pollucite, carnallite, leucite, and zinnwaldite, which contains traces up to 1%, in the form of the oxide. It is found in lepidolite to the extent of about 1.5%, and is recovered commercially from this source. Potassium minerals, such as those found at Searles Lake, California, and potassium chloride recovered from brines in Michigan also contain the element and are commercial sources. It is also found along with cesium in the extensive deposits of pollucite at Bernic Lake, Manitoba. Rubidium can be liquid at room temperature. It is a soft, silvery-white metallic element of the alkali group and is the second most electropositive and alkaline element. It ignites spontaneously in air and reacts violently in water, setting fire to the liberated hydrogen. As with other alkali metals, it forms amalgams with mercury and it alloys with gold, cesium, sodium, and potassium. It colors a flame yellowish violet. Rubidium metal can be prepared by reducing rubidium chloride with calcium, and by a number of other methods. It must be kept under a dry mineral oil or in a vacuum or inert atmosphere. Thirty-five isotopes and isomers of rubidium are known. Naturally occurring rubidium is made of two isotopes, 85Rb and 87Rb. Rubidium-87 is present to the extent of 27.83% in natural rubidium and is a beta emitter with a half-life of 4.9 × 1010 years. Ordinary rubidium is sufficiently radioactive to expose a photographic film in about 30 to 60 days. Rubidium forms four oxides: Rb2O, Rb2O2, Rb2O3, Rb2O4. Because rubidium can be easily ionized, it has been considered for use in “ion engines” for space vehicles; however, cesium is somewhat more efficient for this purpose. It is also proposed for use as a working fluid for vapor turbines and for use in a thermoelectric generator using the magnetohydrodynamic principle where rubidium ions are formed by heat at high temperature and passed through a magnetic field. These conduct electricity and act like an armature of a generator thereby generating an electric current. Rubidium is used as a getter in vacuum tubes and as a photocell component. It has been used in making special glasses. RbAg4I5 is important, as it has the highest room-temperature conductivity of any known ionic crystal. At 20°C its conductivity is about the same as dilute sulfuric acid. This suggests use in thin film batteries and other applications. The present cost in small quantities is about $50/g (99.8% pure).

使用

Because rubidium is a much larger atom than lithium or sodium, it gives up its outer valence electron easily, thus becoming a positive ion (oxidation state = Ru+). Rubidium forms numerous compounds, but only a few are useful. One of the main uses for rubidium is as a getter in vacuum tubes used in early radios, TVs, and cathode-ray tubes. When rubidium gas is placed in sealed glass cells along with an inert gas, it becomes a rubidium-gas cell clock. Because of the consistent and exact frequency (vibrations) of it atoms, it is a very accurate timekeeper. Rubidium and selenium are used in the manufacture of photoelectric cells, sometimes called electric eyes. Rubidium is a very caustic alkali (base) with a high pH value that makes it an excellent reducing agent (highly electropositive) in industry and chemical laboratories. A unique use is its ability to locate brain tumors. It is a weak radioisotope able to attach itself to diseased tissue rather than healthy tissue, thus making detection possible.

使用

In making rubidium salts; as a reagent in making zeolite catalysts; in photoelectric cells.

定義

Metallic element of atomic num- ber 37, group IA of the periodic table, aw 85.4678, valence = 1. One stable form, principal natural radioactive isotope is rubidium-87. It is the sec- ond most electropositive and the second most alka- line element, has low

定義

A soft silvery highly reactive element of the alkali-metal group. Naturally occurring rubidium comprises two isotopes, one of which, 87Rb, is radioactive (half-life 5 × 1010 years). It is found in small amounts in several complex silicate minerals, including lepidolite. Rubidium is used in vacuum tubes, photocells, and in making special glass. Symbol: Rb; m.p. 39.05°C; b.p. 688°C; r.d. 1.532 (20°C); p.n. 37; r.a.m. 85.4678.

定義

rubidium: Symbol Rb. A soft silvery white metallic element belonging togroup 1 (formerly IA) of the periodictable; a.n. 37; r.a.m. 85.47; r.d. 1.53;m.p. 38.89°C; b.p. 688°C. It is foundin a number of minerals (e.g. lepidolite)and in certain brines. The metalis obtained by electrolysis of moltenrubidium chloride. The naturally occurringisotope rubidium–87 is radioactive(see rubidium–strontiumdating). The metal is highly reactive,with properties similar to those ofother group 1 elements, ignitingspontaneously in air. It was discoveredspectroscopically by Robert Bunsenand Gustav Kirchhoff in 1861.

一般的な説明

A soft silvery metal. Shipped in very limited quantities sealed in a copper tube and over packed in a wooden box. Used in electronics.

空気と水の反応

Tarnishes rapidly upon exposure to air. Reacts violently with water to form corrosive RUBIDIUM hydroxide and hydrogen, a flammable gas. The heat of the reaction usually ignites the hydrogen.

反応プロフィール

RUBIDIUM METAL is a strong reducing agent. Burns spontaneously in dry oxygen [Mellor 2:468 1946-47]. Readily catches fire in air when molten or with a sulfur vapor [Mellor 2: 469 1946-47]. Causes explosive decomposition of maleic anhydride. [Chem Safety Data Sheet SD-88 1962; Chem. Haz. Info. Series C-71 1960] Burns in chlorine [Mellor 2, Supp. 1:380 1956]. Interaction with mercury is exothermic and may be violent, [Mellor, 1941, Vol. 2, 469].

危険性

Reacts vigorously with air and water, must be stored under kerosene or similar liquid, danger- ous fire and explosion risk. Metal causes serious skin burns.

危険性

The major hazard is from fire and explosions of the elemental metallic form of rubidium.It must be stored in an inert atmosphere or in kerosene. When rubidium contacts skin, itignites and keeps burning and produces a deep, serious wound. Water and blood just make itreact more vigorously.
Many of the compounds of rubidium are toxic and strong irritants to the skin and lungs.It is one of the elements best left to experienced handlers.
Very small traces of rubidium are found in the leaves of tobacco, tea, and coffee, as well asin several edible plants, but these radiation traces are harmless when used in moderation.

健康ハザード

Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.

火災危険

Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.

安全性プロファイル

Moderately toxic by intraperitoneal route. A very reactive alkali metal (more reactive than potassium or cesium). In the body, rubidlum substitutes for potassium as an intracellular ion. The ratio of Rb/K intake is important in the toxicology of rubidium. A ratio above 40% is dangerous. In rats, a failure to gain weight is the first symptom, followed by ataxia and hyperirritabhty. Symptoms include: skin ulcers, poor hair coat, sensitivity, and extreme nervousness leading to convulsions and death. hazard when exposed to heat or flame or by chemical reaction with oxidlzers. Igmtes on contact with air, oxygen, and halogens. A very dangerous fire and explosion RUBIDIUM HYDROXIDE RPZOOO 121 5 Ignites spontaneously on contact with water. Reaction with water, moisture, or steam forms explosive hydrogen gas, whch then ignites. Explodes in contact with liquid bromine. Can react explosively with air, halogens, mercury, nonmetals, vanadium chloride oxide, moisture, acids, oxidizers. Violent reaction with vanadium trichloride oxide (at 60℃C), Cl202, P. Molten rubidium ignites in sulfur vapor and reacts vigorously with carbon. RbOH is more basic than KOH. Storage and handling: Keep under benzene, petroleum, or other liquids not containing gaseous O2. When heated to decomposition it emits toxic fumes of RbzO. See also SODIUM and SODIUM POTASSIUM ALLOY.

ルビジウム 上流と下流の製品情報

原材料

準備製品


ルビジウム 生産企業

Global( 69)Suppliers
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Mainchem Co., Ltd.
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Hubei Jusheng Technology Co.,Ltd.
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J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
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Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
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021-50323701 sale@aladdin-e.com China 24991 65

7440-17-7(ルビジウム)キーワード:


  • 7440-17-7
  • Rubidium,99.75%(metalsbasis)
  • RUBIDIUM: 99.9%
  • Rubidium, Breakseal Ampoule 99.8%
  • Rubidium, AAS standard solution, Specpure(R), Rb 1000μg/ml
  • Rubidium, plasma standard solution, Specpure(R), Rb 1000μg/ml
  • Rubidium, plasma standard solution, Specpure(R), Rb 10,000μg/ml
  • MUELLER HINTON
  • Rubidium, breakseal ampoule
  • Rubidium standard for ICP
  • 37Rb
  • Chebi:33322
  • Rubidio
  • RUBIDIUM ICP STANDARD TRACEABLE TO SRM F
  • RubidiuM ingot, 99.6% trace Metals basis
  • Rubidium, ampuled under argon, 99.75% trace metals basis
  • Rubidium, 99.75% trace metals basis
  • Rubidium plasma standard solution, Rb 10000μg/mL
  • Rubidium, AAS standard solution, Rb 1000μg/mL
  • RUBIDIUM, AAS STANDARD SOLUTION
  • RUBIDIUM ATOMIC ABSORPTION STANDARD
  • RUBIDIUM
  • RUBIDIUM PLASMA EMISSION SPECTROSCOPY STANDARD
  • RUBIDIUM PLASMA EMISSION STANDARD
  • RUBIDIUM, PLASMA STANDARD SOLUTION
  • RUBIDIUM SINGLE ELEMENT STANDARD
  • RUBIDIUM STANDARD
  • RUBIDIUM ICP STANDARD
  • RUBIDIUM METAL
  • RUBIDIUM, INGOT, 99.6%
  • RUBIDIUM INGOT 98+%
  • ルビジウム
  • 金属ルビジウム
  • ルビジウム (99.9+%) (breakseal ampoule)
  • ルビジウム (99+%) (prescored ampoule)
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