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コバルト

コバルト 化学構造式
7440-48-4
CAS番号.
7440-48-4
化学名:
コバルト
别名:
コバルト;スポンジコバルト触媒;コバルト(キューブ),5N;コバルト(粉末);コバルト,スポンジ状;コバルト,粉末;コバルト,粒状;コバルト及びその化合物;コバルト(スポンジ);コバルト(粉末) 400メッシュ;コバルト.粉末;コバルト.塊状;コバルト, 粉末;コバルト, スポンジ,99.99%;コバルト, ホイル;コバルトナノワイヤ;コバルト pieces (99.9+%);コバルト powder (99.8%);コバルト powder (99.99%);コバルト foil (99.9%)
英語化学名:
Cobalt
英語别名:
COBALT;Kobalt;Aquacat;CO005110;CO000140;CO000150;CO000180;CO000200;CO000170;CO000090
CBNumber:
CB9408267
化学式:
Co
分子量:
58.93
MOL File:
7440-48-4.mol

コバルト 物理性質

融点 :
1495°C
沸点 :
2900 °C(lit.)
比重(密度) :
1.03 g/mL at 25 °C
貯蔵温度 :
Storage temperature: no restrictions.
溶解性:
H2O: soluble
外見 :
wire
色:
Pink to red to violet
比重:
8.9
電気抵抗率 (resistivity):
6.24 μΩ-cm, 20°C
水溶解度 :
insoluble
Merck :
13,2452
暴露限界値:
TLV-TWA 0.05 mg as Co/m3 (ACGIH)
PEL-TWA: 0.05 mg as Co/m3 (NIOSH, OSHA)
TLV-STEL 0.1 mg as Co/m3 (ACGIH)
IDLH 20 mg as Co/m3 (NIOSH)
.
安定性::
Stable, but pyrophoric in air when finely divided. Incompatible with acetylene, hydrazinium nitrate, oxidizing agents, acids.
CAS データベース:
7440-48-4(CAS DataBase Reference)
NISTの化学物質情報:
Cobalt(7440-48-4)
EPAの化学物質情報:
Cobalt(7440-48-4)
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  T,Xn,F
Rフレーズ  45-23/24/25-34-53-42/43-40-36/37-36/38-17-11-15
Sフレーズ  53-23-26-36/37/39-45-61-37-24-22-36/37-5-43
RIDADR  UN 3264 8/PG 3
WGK Germany  3
RTECS 番号 GF8750000
TSCA  Yes
HSコード  8105 20 00
国連危険物分類  4.1
容器等級  III
有毒物質データの 7440-48-4(Hazardous Substances Data)
毒性 LD50 orally in Rabbit: 6170 mg/kg
消防法 危-2-M-1-II
安衛法 特定化学物質障害予防規則:第2類物質,57,57-2
PRTR法 1-132
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
H228 可燃性固体 可燃性固体 1
2
危険
警告
P210, P240,P241, P280, P370+P378
H317 アレルギー性皮膚反応を起こすおそれ 感作性、皮膚 1 警告 P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H334 吸入するとアレルギー、喘息または、呼吸困難 を起こすおそれ 感作性、呼吸器 1 危険 P261, P285, P304+P341, P342+P311,P501
H351 発がんのおそれの疑い 発がん性 2 警告 P201, P202, P281, P308+P313, P405,P501
H401 水生生物に毒性 水生環境有害性、急性毒性 2 P273, P501
H411 長期的影響により水生生物に毒性 水生環境有害性、慢性毒性 2
H413 長期的影響により水生生物に有害のおそれ 水生環境有害性、慢性毒性 4
注意書き
P201 使用前に取扱説明書を入手すること。
P210 熱/火花/裸火/高温のもののような着火源から遠ざ けること。-禁煙。
P261 粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P284 呼吸用保護具を着用すること。
P304+P340 吸入した場合:空気の新鮮な場所に移し、呼吸しやすい 姿勢で休息させること。
P342+P311 呼吸に関する症状が出た場合:医師に連絡すること。
P405 施錠して保管すること。

コバルト 価格 もっと(706)

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) W01ALF042658 コバルト, ホイル
Cobalt foil, 0.1mm (0.004in) thick, 99.95% (metals basis)
7440-48-4 25×25mm ¥14900 2018-12-26 購入
富士フイルム和光純薬株式会社(wako) W01ALF042658 コバルト, ホイル
Cobalt foil, 0.1mm (0.004in) thick, 99.95% (metals basis)
7440-48-4 50×50mm ¥42200 2018-12-26 購入
関東化学株式会社(KANTO) 07385-32 コバルト(粉末) >99.0%(T)
Cobalt, powder >99.0%(T)
7440-48-4 25g ¥3700 2018-12-13 購入
関東化学株式会社(KANTO) 07385-02 コバルト(粉末) >99.0%(T)
Cobalt, powder >99.0%(T)
7440-48-4 500g ¥26500 2018-12-13 購入
Sigma-Aldrich Japan 203076 コバルト granular, 99.99% trace metals basis
Cobalt granular, 99.99% trace metals basis
7440-48-4 5g ¥14400 2018-12-25 購入

コバルト 化学特性,用途語,生産方法

外観

灰色, 粉末又は塊

溶解性

水および有機溶媒に不溶。希塩酸, 希硫酸, 希硝酸に水素を発生して溶ける。希塩酸及び希硫酸には徐々に溶け、硝酸には溶けやすい。

用途

合金材料、磁性材料、触媒。

用途

合金結合材、耐熱材料、磁性材料、触媒。

用途

触媒、合金材料。

化学的特性

Cobalt is a silvery, bluish-white, odorless, and magnetic metal. The fume and dust of cobalt metal is odorless and black. The appearance and odor of cobalt compounds and their dusts and fumes vary with the compound. Cobalt metal in powdered form is incompatible with fused ammonium nitrate, hydrozinium nitrate, and strong oxidizing agents and should be avoided. It ignites on contact with bromide pentafl uoride. Powdered cobalt ignites spontaneously in air. Exposure to cobalt metal fume and dust can occur through inhalation, ingestion, and eye or skin contact.

化学的特性

Cobalt is a silver-gray to black, hard, brittle, magnetic metal. It is relatively rare; the important mineral sources are the arsenides, sulfides, and oxidized forms. It is generally obtained as a by-product of other metals, particularly copper.

物理的性質

Cobalt is a bluish steel-gray metal that can be polished to a bright shine. It is brittle andis not malleable unless alloyed with other metals. It is magnetic, and when alloyed with aluminum and nickel, it is called alnico metal, which acts as a super-magnet with many uses inindustry. Chemically and physically, cobalt acts much as do its two partners, iron (Fe) andnickel (Ni), located on each side of it in period 4 on the periodic table. In particular, iron,cobalt, and nickelare unique in that they possess natural magnetic properties. Cobalt’s meltingpoint is 1,495°C, its boiling point is 2,927°C, and its density is 8.86 g/cm3.

同位体

There are 33 isotopes of cobalt, ranging from Co-48 to Co-75, with half-livesranging from a few nanoseconds to 5.272 years for cobalt-60. Cobalt-59 is the onlystable isotope that constitutes almost all (roughly 100%) of the element’s natural presence on Earth. All the other isotopes are radioactive and are created artificially in nuclearreactors or nuclear explosions.

名前の由来

Cobalt was given the name kobolds (or kolalds, or kololos) by German miners. It means “goblin” (see “History” for more on this story).

天然物の起源

Cobalt is the 32nd most abundant element on Earth even though it makes up only 0.003%of the Earth’s crust. It is not found in the free metallic state, despite being widely distributedin igneous rocks as minerals. Its two most common mineral ores are cobaltite (CoAsS) anderythrite [Co3(AsO4)2]. These ores are placed in blast furnaces to produce cobalt arsenide(Co2As), which is then treated with sulfuric acid to remove the arsenic. Finally, the productcobalt tetraoxide (Co3O4) is reduced by heat with carbon (Co3O4 + C → 3Co + 2CO2), resulting in cobalt metal.Cobalt is also found in seawater, meteorites, and other ores such as linnaeite, chloanthite,and smaltite, and traces are found mixed with the ores of silver, copper, nickel, zinc, andmanganese. Cobalt ores are found in Canada and parts of Africa, but most of the cobalt usedin the United States is recovered as a by-product of the mining, smelting, and refining of theores of iron, nickel, lead, copper, and zinc.

特性

Cobalt has the highest Curie point of any metal or alloy of cobalt. The Curie point is thetemperature at which an element will lose its magnetism before it reaches its melting point.Cobalt’s Curie point is 1,121°C, and its melting point is 1,495°C. About 25% of all cobaltmined in the world is used as an alloy with other metals. The most important is the alloyalnico, which consists of nickel, aluminum, and cobalt. Alnico is used to make powerful permanent magnets with many uses, such as CT, PET, and MRI medical instruments. It is alsoused for electroplating metals to give a fine surface that resists oxidation.

来歴

Cobalt occurs in the mineral cobaltite, smaltite, and erythrite, and is often associated with nickel, silver, lead, copper, and iron ores, from which it is most frequently obtained as a by-product. It is also present in meteorites. Important ore deposits are found in Congo-Kinshasa, Australia, Zambia, Russia, Canada, and elsewhere. The U.S. Geological Survey has announced that the bottom of the north central Pacific Ocean may have cobalt-rich deposits at relatively shallow depths in waters close to the Hawaiian Islands and other U.S. Pacific territories. Cobalt is a brittle, hard metal, closely resembling iron and nickel in appearance. It has a magnetic permeability of about two thirds that of iron. Cobalt tends to exist as a mixture of two allotropes over a wide temperature range; the β-form predominates below 400°C, and the α above that temperature. The transformation is sluggish and accounts in part for the wide variation in reported data on physical properties of cobalt. It is alloyed with iron, nickel and other metals to make Alnico, an alloy of unusual magnetic strength with many important uses. Stellite alloys, containing cobalt, chromium, and tungsten, are used for high-speed, heavy-duty, high-temperature cutting tools, and for dies. Cobalt is also used in other magnet steels and stainless steels, and in alloys used in jet turbines and gas turbine generators. The metal is used in electroplating because of its appearance, hardness, and resistance to oxidation. The salts have been used for centuries for the production of brilliant and permanent blue colors in porcelain, glass, pottery, tiles, and enamels. It is the principal ingredient in Sevre’s and Thenard’s blue. A solution of the chloride (CoCl2 · 6H2O) is used as sympathetic ink. The cobalt ammines are of interest; the oxide and the nitrate are important. Cobalt carefully used in the form of the chloride, sulfate, acetate, or nitrate has been found effective in correcting a certain mineral deficiency disease in animals. Soils should contain 0.13 to 0.30 ppm of cobalt for proper animal nutrition. Cobalt is found in Vitamin B-12, which is essential for human nutrition. Cobalt of 99.9+% purity is priced at about $250/kg. Cobalt-60, an artificial isotope, is an important gamma ray source, and is extensively used as a tracer and a radiotherapeutic agent. Single compact sources of Cobalt-60 vary from about $1 to $10/curie, depending on quantity and specific activity. Thirty isotopes and isomers of cobalt are known.

使用

Cobalt has many practical uses.Historically, as well as today, different compounds of cobalt have been used for their colorsknown as cobalt blue, cerulean, new blue, smalt, cobalt yellow, and green.For many centuries cobalt was used to color glass, pottery, and porcelain and as an enamel.It is also used as a dye and paint pigment.As mentioned, cobalt alloyed with iron and nickel is used to make powerful permanentmagnets that are used in many industries.A major use is as an alloy with chromium to produce high-speed machine-cutting toolsthat are resistant to high temperatures.A cobalt alloy of copper and tungsten, called “stellite,” also maintains its hardness at hightemperatures, making it an ideal alloy for high-speed drills and cutting tools.The radioisotope cobalt-60, with a half-life of 5.27 years (1925.3 days) through beta (β)emission, decays to form the stable element nickel-60. It is used to test welds and metal castsfor flaws, to irradiate food crops to prolong freshness, as a portable source of ionizing gamma(γ) radiation, for radiation research, and for a medical source of radiation to treat cancers andother diseases.Cobalt is an important trace element for proper human nutrition. It is also a natural component of vitamin B12.

使用

Cobalt is used in steel alloys, cementedcarbide abrasives and jet engines.

定義

A lustrous silveryblue hard ferromagnetic transition metal occurring in association with nickel. It is used in alloys for magnets, cutting tools, and electrical heating elements and in catalysts and some paints.

定義

cobalt: Symbol Co. A light-greytransition element; a.n. 27; r.a.m.58.933; r.d. 8.9; m.p. 1495°C; b.p.2870°C. Cobalt is ferromagneticbelow its Curie point of 1150°C.Small amounts of metallic cobalt arepresent in meteorites but it is usuallyextracted from ore deposits workedin Canada, Morocco, and Za?re. It ispresent in the minerals cobaltite,smaltite, and erythrite but also associatedwith copper and nickel as sulphidesand arsenides. Cobalt ores areusually roasted to the oxide and thenreduced with carbon or water gas.Cobalt is usually alloyed for use. Alnicois a well-known magnetic alloyand cobalt is also used to make stainlesssteels and in high-strength alloysthat are resistant to oxidation at hightemperatures (for turbine blades andcutting tools).
The metal is oxidized by hot airand also reacts with carbon, phosphorus,sulphur, and dilute mineralacids. Cobalt salts, usual oxidationstates II and III, are used to give abrilliant blue colour in glass, tiles,and pottery. Anhydrous cobalt(II)chloride paper is used as a qualitativetest for water and as a heat-sensitiveink. Small amounts of cobalt salts areessential in a balanced diet for mam-mals. Artificiallyproduced cobalt–60 is an importantradioactive tracer andcancer-treatment agent. The elementwas discovered by Georg Brandt(1694–1768) in 1737.

定義

ChEBI: A cobalt group element atom that has atomic number 27.

使用

For alloys; manufacture of cobalt salts; in nuclear technology. Since 60Co can be encapsulated compactly, it has replaced radium in experimental medicine and cancer research. Cobalt is also used in the cobalt bomb, a hydrogen bomb surrounded by a cobalt metal shell. When the nuclear explosion occurs 60Co is formed from 59Co by neutron capture. Considered a "dirty bomb" because of long half-life and intense b- and g radiation. Max permissible concentration of 60Co in air: 10-7mCi/cc, Natl. Bur. Stand. Handb. 69, 31 (1959).

brand name

C.i. 77320;Cobalt-59;Impromin;Inter-con;Kometileneamin;Levacide-c;Orkomin;Panacur;Sofracaps;Tasvite;Trelenium.

世界保健機関(WHO)

WHO Comment(non-radioactive forms): The World Health Organization has no information further to the above regarding preparations containing cobalt or to indicate that they are still commercially manufactured.

空気と水の反応

Burns brilliantly when exposed to air [Mellor 14:453(1946-1947)]. Insoluble in water.

反応プロフィール

Pyrophoric Cobalt is a reducing agent. Decomposes acetylene in the cold as the metal becomes incandescent [Mellor 14:513(1946-1947]. Incompatible with oxidizing agents such as ammonium nitrate, bromine pentafluoride, and nitryl fluoride.

危険性

A possible carcinogen. Toxic by inhalation. Dust is flammable. Asthma, myocardial effects, and pulmonary function impairment.

危険性

Cobalt is found in most natural foods. Although a necessary trace element, it is toxic to humans if ingested in large amounts. The human body does excrete in urine excessive amounts of cobalt compounds such as found in vitamin B12.
Cobaltous chromate (CoCrO4) is brownish-yellow to grayish-black (the color depends on its purity) is a dangerous carcinogen (causes cancer).
Some years ago, a cobalt additive was used by some beer makers to maintain a foam head on their beer. Those who imbibed excessively developed what is known as beer drinkers syndrome, which caused some deaths from enlarged and flabby hearts.

健康ハザード

Cobalt is an essential element. Its deficiencycan result in pernicious anemia. It is present invitamin B12. Excessive intake of this elementmay result in polycythemia or overproductionof erythrocytes and heart lesions. Exposure toits dusts can produce cough and respiratoryirritation. Chronic inhalation of its dusts orfumes can decrease pulmonary functions andmay cause diffuse nodular fibrosis and otherpulmonary diseases. Skin contact may inducedermal hypersensitivity reactions, producingan allergy-type dermatitis.
Co(II) ion is reported to be genotoxicin vitro and in vivo and carcinogenic inrodents (De Boeck et al. 2003) Occupationalexposure to hard metal (cemented carbide)dust is linked to an increased risk of lungcancer.
.

健康ハザード

Acute exposure to cobalt metal, dust, and fume is characterized by irritation of the eyes and, to a lesser extent, irritation of the skin. In sensitized individuals, exposure causes an asthma-like attack, with wheezing, bronchospasm, and dyspnea. Ingestion of cobalt may cause nausea, vomiting, diarrhea, and a sensation of heat. Human exposures to cobalt and cobalt compounds cause cough, tight chest, pain in chest on coughing, dyspnea, malaise, ache, chills, sweating, shivering, and aching pain in back and limbs. After further days of exposures to high concentrations of cadmium, the worker develops more severe pulmonary responses such as severe dyspnea, wheezing, chest pain and precordial constriction, persistent cough, weakness and malaise, anorexia, nausea, diarrhea, nocturia, abdominal pain, diffuse nodular fi brosis, respiratory hypersensitivity, asthma, abdominal pain, cardiomyopathy, lung damage, hemoptysis, prostration, and death. Cobalt metal, dust, and fume are pulmonary toxins and respiratory and skin sensitizers. Inhalation of cobalt metal fume and dust may cause interstitial fi brosis, interstitial pneumonitis, myocardial and thyroid disorders, and sensitization of the respiratory tract and skin. Chronic cobalt poisoning may also produce polycythemia and hyperplasia of the bone marrow. Myocardial disorders have also been observed in cobalt production workers. Chronic exposure to cobalt metal, dust, or fume may cause respiratory or dermatologic signs and symptoms. Following skin sensitization, contact with cobalt causes eruptions of dermatitis in creases and on frictional surfaces of the arms, legs, and neck. Chronic cobalt poisoning may cause polycythemia, hyperplasia of the bone marrow and thyroid gland, pericardial effusion, and damage to the alpha cells of the pancreas.

火災危険

Literature sources indicate that the dust of Cobalt is flammable.

农业用途

Cobalt (Co), a metallic element with an atomic weight of 58.94, is one of the transition elements belonging to the Group 9 (formerly Group VIII ) of the Periodic Table. However, in extremely low concentrations ranging from 0.1 to 10parts per billion (ppb), cobalt have been observed to improve growth, transpiration and photosynthesis of cotton, mustard and beans. Cobalt is required by symbiotic micro-organisms (e.g., rhizobia) for the fixation of elemental nitrogen through the formation of vitaminB12.
Cobalt forms a complex with nitrogen atoms of the porphyrin ring structure and provides a prosthetic group for association with nucleotides in vitamin B12 co-enzyme. This complex is called cobamide. Other cobalt functions include leghemoglobin metabolism and ribonucleotide reductase in Rhizobium, and activation of enolase, lecithinase and succinic kinase.
The concentration of cobalt in dry matter of plants ranges from 0.02 to 0.5 ppm. One ppb of cobalt in nutrient solution was found adequate for nitrogen fixation in alfalfa. The water content and catalase activity in leaves increased and the concentration of the cell sap decreased with cobalt application.
Cobalt content in soil is low and variable. In India, for instance, it ranges from 4 to 80ppm. The humus content of the soil influences the availability of cobalt in it. The nature of clay affects the absorption of cobalt from solutions, in the order muscovite > hematite > bentonite = kaolin. An increase in the pH of the soil decreases the availability of cobalt. Cobalt deficiency is more pronounced in coarse sandy soils and under high rainfall conditions. To overcome deficiency, cobalt fertilization with 100to 200g/ha as cobaltous sulphate (CoSO,) is recommended.

工業用途

Cobalt (symbol Co) is a lustrous, silvery-bluemetallic chemical element, resembling nickelbut with a bluish tinge instead of the yellow ofnickel. It is rarer and costlier than nickel andits price has varied widely in recent years.Although allied to nickel, it has distinctive differences.It is more active chemically thannickel. It is dissolved by dilute H2SO4, HNO3,or HCl acids, and is attacked slowly by alkalis.The oxidation rate of pure cobalt is 25 timesthat of nickel. Its power of whitening copperalloys is inferior to that of nickel, but smallamounts in Ni–Cu alloys will neutralize theyellowish tinge of the nickel and make themwhiter. The metal is diamagnetic like nickel, buthas three times the maximum permeability.Like tungsten, it imparts red-hardness to toolsteels. It also hardens alloys to a greater extentthan nickel, especially in the presence of carbon,and can form more chemical compoundsin alloys than nickel.
Its chemical properties resemble, in part,those of both nickel and iron. Cobalt is themetal with the highest Curie temperature(1121°C) and the lowest allotropic transformationtemperature (399°C). Below 421°C, cobaltis close-packed hexagonal; above, it is facecenteredcubic.

安全性プロファイル

Confirmed carcinogen with experimental neoplastigenic and tumorigenic data. Poison by intravenous, intratracheal, and intraperitoneal routes. Moderately toxic by ingestion. Inhalation of the dust may cause pulmonary damage. The powder may cause dermatitis. Ingestion of soluble salts produces nausea and vomiting by local irritation. Powdered cobalt igmtes spontaneously in air. Flammable when exposed to heat or flame. Explosive reaction with hydrazinium nitrate, ammonium nitrate + heat, and 1,3,4,7-tetramethylisoindole (at 39OOC). Ignites on contact with bromine pentafluoride. Incandescent reaction with acetylene or nitryl fluoride. See also COBALT COMPOUNDS.

職業ばく露

Possible risk of forming tumors, Suspected reprotoxic hazard. Nickel-aluminumcobalt alloys are used for permanent magnets. Alloys with nickel, aluminum, copper, beryllium, chromium, and molybdenum are used in the electrical, automobile, and aircraft industries. Cobalt is added to tool steels to improve their cutting qualities and is used as a binder in the manufacture of tungsten carbide tools. Various cobalt compounds are used as pigments in enamels, glazes, and paints; as catalysts in afterburners; and in the glass, pottery, photographic, electroplating industries. Radioactive cobalt (60Co) is used in the treatment of cancer. Cobalt has been added to beer to promote formation of foam but cobalt acts with alcohol to produce severe cardiac effects at concentrations as low as 1.2-1.5 mg/L of beer. Cobalt is part of the vitamin B12 molecule and as such is an essential nutrient. The requirement of humans for cobalt in the form of vitamin B12 is about 0.13 μg/day.

応急処置

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy

貯蔵

Cobalt metal dust (powdered metal) should be stored in a cool, dry, well-ventilated area in tightly sealed containers that are labeled in accordance with OSHA standards. Containers of cobalt metal dust should be protected from physical damage and ignition sources, and should be stored separately from strong oxidizers.

輸送方法

UN3189 Metal powder, self-heating, n.o.s., Hazard Class: 4.2; Labels: 4.2-Spontaneously combustible material

廃棄物の処理

Cobalt metal may be recovered from scrap and cobalt compounds from spent catalysts as alternatives to disposal.

主な性質

  1. 単体コバルトは灰白色の金属で、酸化物の色は黄色か黒
  2. コバルトは化学的性質にはニッケル及び鉄に近い
  3. コバルトは通常は空気や水の影響を受けない(硫酸、塩酸、硝酸等に激しく反応し、アルカリには溶けない)
  4. 硬度、引張強度、切削性、熱的性質もニッケルや鉄に似ている
  5. コバルトは強磁性合金である
  6. コバルトにニッケル、クロム及びモリブデンを含む合金は、高温強度が強い
  7. コバルトにクロム、タングステン、鉄を含む合金は耐クリープ性、耐摩耗性、耐食性が高い(切削道具に広く用いられる)
  8. コバルト?クロム基合金は人の体液と反応しない(医療に用いられる)

主な用途

  1. 超硬合金工具(切削工具、耐磨工具)
  2. 特殊鋼部品(高速度鋼、一般工具、工作機械部品、航空機エンジン部品、ガスタービン部品)
  3. 磁性材料部品(永久磁石、テレビ、音響部材、磁気ディスク)
  4. 化成品(触媒、磁気テープ)
  5. その他(顔料、ガラスの消光剤、ホウロウの下塗)

コバルト 上流と下流の製品情報

原材料

準備製品


コバルト 生産企業

Global( 176)Suppliers
名前 電話番号 ファックス番号 電子メール 国籍 製品カタログ 優位度
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22043 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20786 55
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7440-48-4(コバルト)キーワード:


  • 7440-48-4
  • supercobalt
  • PLATING SOLUTION CO-100ES
  • PLATING SOLUTION CO-801
  • PLATING SOLUTION CO-701
  • c.i. 77320
  • CO STANDARD
  • COBALT AA STANDARD
  • COBALT, AAS STANDARD SOLUTION
  • COBALT AA SINGLE ELEMENT STANDARD
  • COBALT AA/ICP CALIBRATION/CHECK STANDARD
  • COBALT
  • COBALT, PLASMA STANDARD SOLUTION
  • COBALT POWDER
  • COBALT SINGLE ELEMENT PLASMA STANDARD
  • COBALT SINGLE ELEMENT STANDARD
  • COBALT STANDARD
  • COBALT PLASMA EMISSION STANDARD
  • COBALT PLASMA EMISSION SPECTROSCOPY STANDARD
  • COBALT, OIL BASED STANDARD SOLUTION
  • COBALT STANDARD SOLUTION
  • COBALT METALLO-ORGANIC STANDARD
  • COBALT ION CHROMATOGRAPHY STANDARD
  • COBALT METAL
  • COBALT ICP/DCP STANDARD
  • Cobalt, powder, <150 micron, 99.9+% metals basis
  • COBALT, PIECES, 99.5%
  • Cobalt, foil, 1.0mm thick, 99.95% metals basis
  • COBALT, WIRE, 1.0MM DIAM., 99.9+%
  • Cobalt(Metal)Cathode
  • Cobalt(Metal)Powder
  • コバルト
  • スポンジコバルト触媒
  • コバルト(キューブ),5N
  • コバルト(粉末)
  • コバルト,スポンジ状
  • コバルト,粉末
  • コバルト,粒状
  • コバルト及びその化合物
  • コバルト(スポンジ)
  • コバルト(粉末) 400メッシュ
  • コバルト.粉末
  • コバルト.塊状
  • コバルト, 粉末
  • コバルト, スポンジ,99.99%
  • コバルト, ホイル
  • コバルトナノワイヤ
  • コバルト pieces (99.9+%)
  • コバルト powder (99.8%)
  • コバルト powder (99.99%)
  • コバルト foil (99.9%)
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