ETIMOLOGI PERKATAAN COBALT
German Kobalt, from Middle High German kobolt goblin; from the miners' belief that malicious goblins placed it in the silver ore.
APAKAH MAKSUD COBALT dalam CORSICA?
Kobalt
Cobalt adalah unsur kimia dengan simbol Co dan nombor atom 27. Seperti nikel, kobalt di kerak Bumi hanya terdapat dalam bentuk gabungan kimia, kecuali untuk deposit kecil yang terdapat dalam aloi besi meteorik semulajadi. Unsur yang bebas, yang dihasilkan oleh peleburan reduktif, adalah logam yang keras, berkilau, perak-kelabu. Pig biru yang berasaskan kobalt telah digunakan sejak zaman purba untuk perhiasan dan cat, dan memberikan warna biru tersendiri kepada kaca, tetapi warna kemudiannya dipikirkan oleh alkemis kerana disebabkan bismut logam yang diketahui. Penambang telah lama menggunakan nama kobold bijih untuk beberapa mineral yang menghasilkan pigmen-biru; mereka dinamakan demikian kerana mereka miskin dalam logam yang diketahui, dan memberikan asap arsenik beracun yang beracun semasa peleburan. Pada tahun 1735, bijih-bijih seperti itu dapat diturunkan kepada logam baru, dan ini akhirnya dinamakan untuk kobold. Hari ini, sesetengah kobalt dihasilkan secara khusus dari pelbagai jenis bijih logam yang berlebihan, contohnya cobaltite, tetapi sumber utama unsur ini adalah sebagai hasil sampingan tembaga dan perlombongan nikel. Sabuk tembaga di Republik Demokratik Congo dan Zambia menghasilkan kebanyakan kobalt yang ditambang di seluruh dunia.
Definisi cobalt dalam kamus Corsica
Takrif kobalt dalam kamus adalah unsur keperakan keras putih putih yang merupakan logam feromagnetik: berlaku terutamanya dalam cobaltite dan smaltite dan digunakan secara meluas dalam aloi. Radioisotope kobalt-60, dengan separuh hayat selama 5.3 tahun, digunakan dalam radioterapi dan sebagai penceroboh. Simbol: Co; atom tidak: 27; atom wt: 58.93320; valensi: 2 atau 3; ketumpatan relatif: 8.9; lebur pt: 1495 ° C; mendidih pt: 2928 ° C.
CORSICA BUKU YANG BERKAIT DENGAN «COBALT»
Ketahui penggunaan
cobalt dalam pilihan bibliografi berikut. Buku yang berkait dengan
cobalt dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
Introduces the element of cobalt, discussing its physical and chemical properties, where it is found, and what processes or objects it is used in.
2
Nickel,
Cobalt, and Their Alloys
This book is a comprehensive guide to the compositions, properties, processing, performance, and applications of nickel, cobalt, and their alloys.
Explains the characteristics of cobalt, where it is found, how it is used by humans, and its relationship to other elements found in the periodic table.
4
Cobalt-base Alloys for Biomedical Applications
Annotation copyrighted by Book News, Inc., Portland, OR
John A. Disegi, Richard L. Kennedy, Robert Pilliar,
1999
5
Extractive Metallurgy of Nickel,
Cobalt and Platinum Group ...
This book describes and explains the methods by which three related ores and recyclables are made into high purity metals and chemicals, for materials processing.
Frank Crundwell, Michael Moats, Venkoba Ramachandran,
2011
Jesse names this colt Cobalt, and helps and watches him grow up. Cobalt has a talent and the heart for running, in which this leads him to great victories in races.
7
Cobalt Oxides: From Crystal Chemistry to Physics
Providing a thorough introduction to cobalt oxides from a chemical and physical viewpoint as a basis for understanding their intricacies, this is a must-have for both experienced researchers as well as entrants to the field.
Bernard Raveau, Motin Seikh,
2012
About the Author Shelley Grace is a secondary school teacher in New South Wales, Australia. An avid reader of crime and mystery novels, she loves the works of Clive Cussler, Janet Evanovich, Tess Gerritsen, and Dan Brown, among others.
9
Cobalt and Inorganic
Cobalt Compounds
(1981) exposed the earthworm Eisenia foetida in a silt loam covered with
activated sludge spiked at different cobalt concentrations and observed a
significant effect on growth after 8 weeks of exposure at 300 mg/kg but not at 30
mg/kg.
James H. Kim, Herman J. Gibb, Paul D. Howe,
2006
10
Nutrient Requirements of Small Ruminants: Sheep, Goats, ...
COBALT The mammalian tissues have no requirement for cobalt (Co) per se but
require vitamin Bp which is synthesized by ruminal microorganisms that require
cobalt. Only 3-13 percent of available cobalt is incorporated into vitamin Bp ...
BARANGAN BERITA YANG TERMASUK TERMA «COBALT»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
cobalt digunakan dalam konteks perkara berita berikut.
Racing executive to answer misconduct allegations in cobalt affair
A senior racing executive will continue in his role with the Australian Turf Club amid allegations of misconduct in the Midsummer Sun cobalt ... «Stuff.co.nz, Jul 15»
Air Jordan 11 IE Low "Cobalt" - Release Date
The Air Jordan 11 IE Low will hit stores this August 1st in the original “Cobalt” colorway. These off-shoot versions of the Air Jordan 11 first ... «Sneaker News, Jul 15»
UGANDA : Copper & cobalt: major industrial hub on the cards in the …
Moses Mugabi, process manager at Kasese Cobalt Company Ltd (KCCL), told Africa Mining Intelligence that the amount of ore the company ... «Africa Intelligence, Jul 15»
Trainer Peter Moody to learn cobalt fate after returning from Europe …
PETER Moody will set foot back on Australian soil on Wednesday after a flight from Europe and within days learn whether he faces cobalt ... «Herald Sun, Jul 15»
BlackBerry Classic limited edition in cobalt blue unveiled
The limited edition device is now available in cobalt blue color. Other than the color, it is the same BlackBerry Classic smartphone that we are ... «SlashGear, Jul 15»
Cobalt International Energy Receives $14.81 Average Target Price …
Cobalt International Energy logo Cobalt International Energy (NYSE:CIE) has earned an average recommendation of “Hold” from the eleven ... «WKRB News, Jul 15»
Share this story
QUEENSLAND'S cobalt scandal has deepened with three new ... per litre of urine cobalt threshold for both codes had been introduced. «Courier Mail, Jul 15»
Australia: Kavanagh facing more charges in cobalt case
Australia: The fall out from the Midsummer Sun cobalt case continued on Thursday with stewards issuing a further 52 charges against six ... «Racing Post, Jul 15»
BlackBerry Classic now comes in Cobalt Blue
Just in time for the U.S. Independence Day holiday, BlackBerry has complemented its red and white smartphones with a new BlackBerry ... «ITBusiness.ca, Jul 15»
Nike KD 8 "Hyper Cobalt"
After revealing the Nike KD 8 “Hunt's Hill Sunrise” earlier today, another new Nike KD 8 emerges today. This mixture of Hyper Cobalt and Volt ... «Sneaker News, Jul 15»