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SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Kemia
Mipango 1,298 inapatikana • Vijamii 22
Vinjari Vijamii
Miradi (1,298)
Hatari
Terbium: Tb2O3 Electrolysed in Fused Lithium-Terbium Fluoride at 900 °C on a Graphite Cathode (Endoh, Kunitomo and Sugimura, US 5,258,103)
na Charlie
Isiyo hai
9
0
0
0
0
0
Hatari
Scandium: Oxide Dissolved in Fused Sodium Scandium Fluoride and Electrolysed at 800 °C (Vickery, US 3,111,467)
na Charlie
Isiyo hai
9
0
0
0
0
0
Hatari
Neodymium: Anhydrous Chloride Electrolysed in a Half Water-Cooled Copper Crucible, Barium Chloride Added for Heat (Weiss, Muthmann's Laboratory, 1902)
na Charlie
Isiyo hai
6
0
0
0
0
0
Hatari
Cerium: Anhydrous Cerous Chloride Electrolysed in an Iron Pipe at 200 Amperes (Hirsch, 1911)
na Charlie
Isiyo hai
3
0
0
0
0
0
Europium: Oxide Reduced with Lanthanum Turnings at 1200 °C in High Vacuum, Metal Distilled and Melted Down (Ames Laboratory, 1956)
na Charlie
Isiyo hai
7
0
0
0
0
0
Hatari
Erbium: Twice-Distilled Chloride Reduced by Lithium Vapour at 900 °C, then Sublimed at 1425 °C (Croat, Ames 1969)
na Charlie
Isiyo hai
9
0
0
0
0
0
Hatari
Holmium: Twice-Distilled Chloride Reduced by Lithium Vapour at 900 °C, then Sublimed at 1332 °C (Croat, Ames 1969)
na Charlie
Isiyo hai
10
0
0
0
0
0
Hatari
Dysprosium: Oxide Reduced with Lanthanum Turnings at 1650 °C in High Vacuum, Metal Distilled Off (Sanden, Ames 1973)
na Charlie
Isiyo hai
10
0
0
0
0
0
Hatari
Praseodymium: Anhydrous Chloride Reduced with Calcium in a Tantalum Bomb at 1050 °C, then Vacuum Cast (Daane, Ames 1950)
na Charlie
Isiyo hai
9
0
0
0
0
0
Hatari
Lanthanum: Anhydrous Chloride Reduced with Calcium in a Tantalum Bomb under Argon, then Vacuum Cast (Daane, Ames 1950)
na Charlie
Isiyo hai
12
0
0
0
0
0
Hatari
Rhenium: Ore Heated with Nitre Cake at 300 °C, Oxide Caught, Sulphide Reduced in Hydrogen at 1000 °C (Driggs, US 1,911,943)
na Charlie
Isiyo hai
8
0
0
0
0
0
Hatari
Radium: Chloride Electrolysed onto Mercury, Amalgam Heated to 700 °C in Hydrogen (Curie and Debierne, 1910)
na Charlie
Isiyo hai
9
0
0
0
0
0
Hatari
Radium Chloride: Pitchblende Residues Worked Up and the Chlorides Fractionally Crystallised from Hydrochloric Acid (Curie, Debierne, Haitinger and Ulrich, Thorpe 1912)
na Charlie
Isiyo hai
8
0
0
0
0
0
Samarium: Oxide Reduced with Graphite at 1700 °C in Vacuum and Distilled Twice (Downing, Gorski and Koerner, US 3,104,970)
na Charlie
Isiyo hai
5
0
0
0
0
0
Yttrium: Fluoride Reduced with Calcium and Magnesium at 1000 °C, then Distilled to Sponge (Carlson, Schmidt and Spedding, US 2,950,962)
na Charlie
Isiyo hai
8
0
0
0
0
0
Hafnium: Iodide Vapour Split on a Tungsten Wire Heated beyond 1600 °C (van Arkel and de Boer, US 1,671,213)
na Charlie
Isiyo hai
5
0
0
0
0
0
Hatari
Gadolinium: Mixed Rare-Earth Chlorides Reduced with Calcium in Tantalum, Samarium Left in the Slag (Spedding and Daane, US 2,714,554)
na Charlie
Isiyo hai
6
0
0
0
0
0
Neon: Atmospheric Argon Fractionated in Liquid Air, then Parted from Helium in Liquid Hydrogen (Ramsay and Travers, 1901)
na Charlie
Isiyo hai
7
0
0
0
0
0
Liquid Hydrogen: Gas at 200 Atmospheres Cooled by Dry Ice and Liquid Air, then Expanded in a Regenerator Coil (Travers, 1901)
na Charlie
Isiyo hai
4
0
0
0
0
0
Krypton and Xenon: Liquid-Air Residues Cleaned and Fractionated at the Temperature of Liquid Air (Ramsay and Travers, 1901)
na Charlie
Isiyo hai
5
0
0
0
0
0
Liquid Air: Air Compressed to 170 Atmospheres and Expanded through the Hampson Liquefier (Travers 1901)
na Charlie
Isiyo hai
6
0
0
0
0
0
Carbon as Pure Graphite: Coke and Sand Heated round a Coke Core in an Electric Furnace (Acheson, US 568,323)
na Charlie
Isiyo hai
10
0
0
0
0
0
Hatari
Fluorine: Anhydrous Hydrogen Fluoride with Potassium Hydrogen Fluoride Electrolysed at -23 °C in a Platinum U-Tube (Moissan 1886)
na Charlie
Isiyo hai
7
0
0
0
0
0
Hatari
Potassium Hydrogen Fluoride and Anhydrous Hydrogen Fluoride: Moissan's Purification of Commercial Acid (Thorpe 1912)
na Charlie
Isiyo hai
11
0
0
0
0
0
Inaonyesha 24 kati ya 1298