མཛེས་སྡུག་དང་བདེ་ཐང

རིག་གནས་དང་ལོ་རྒྱུས

ཟས་དང་བཏུང་རྫས

ཕྱིར་འཕྲུལ་རིག

སྲོག་མེད

བིལུ་པིརིན་ཊི ༢༨༦ ཡོད

བིལུ་པིརིན་ཊི (༢༨༦)

Charlie གྱིས

Charlie གྱིས

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Charlie གྱིས

Charlie གྱིས

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Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

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286 ནང་ལས་ 24 སྟོན་དོ།

སྲོག་མེད

བིལུ་པིརིན་ཊི (༢༨༦)

Potassium Hydrogen Fluoride and Anhydrous Hydrogen Fluoride: Moissan's Purification of Commercial Acid (Thorpe 1912)

Niobium: Fused Potassium Niobium Oxyfluoride Electrolysed at 400-600 A in a Water-Jacketed Iron Pot (Balke, US 1,905,882)

Tantalum: Fused Fluoride Bath with Tantalum Oxide Electrolysed at 700 °C (Driggs, US 1,815,054)

Tantalum Pentoxide: Potassium Tantalum Fluoride Heated with Sulphuric Acid to 400 °C and Ignited (Roscoe 1913)

Potassium Tantalum Fluoride: Tantalite Fused with Bisulphate, Dissolved in Hydrofluoric Acid and Crystallised (Roscoe 1913)

Thorium: Oxide Reduced with Calcium and Calcium Chloride in a Sealed Bomb at 950 °C (Marden and Rentschler, US 1,814,719)

Thorium Nitrate: Monazite Sand Opened with Sulphuric Acid, through Phosphate, Oxalate and Sulphate (Roscoe 1913)

Vanadium: Dichloride Reduced in Perfectly Pure Hydrogen at Bright Red Heat (Roscoe, Treatise 1913)

Vanadium Dichloride: Tetrachloride Vapour and Hydrogen through a Red-Hot Glass Tube (Roscoe 1913)

Vanadium Tetrachloride: Oxytrichloride and Chlorine Passed over Red-Hot Sugar Charcoal (Roscoe 1913)

Vanadium Oxytrichloride: Pentoxide and Charcoal Heated in Chlorine, Rectified over Sodium (Roscoe 1913)

Vanadium Pentoxide: Mottramite Sandstone Digested in Hydrochloric Acid, through Ammonium Metavanadate (Roscoe 1913)

Strontium: Mercury-Cathode Amalgam Turned to Hydride and Distilled in Vacuo (Guntz and Roederer, Roscoe 1913)

Strontium Chloride: Strontianite Dissolved in Hydrochloric Acid (Roscoe 1913)

Oxygen from Green Leaves under Water in Sunshine (Ingenhousz 1779)

Zirconium: Oxide Reduced with Calcium and Calcium Chloride in a Sealed Bomb at 950 °C (Kiernan, US 1,760,413)

Zirconium Nitrate: Zirconium Hydroxide Dissolved in Nitric Acid and Evaporated (Roscoe 1913)

Zirconium Hydroxide: Zircon Fused with Potassium Bisulphate, then Caustic Soda in Silver (Roscoe 1913)

Rhodium: Platinum Mother Liquor Worked through Lead, Barium Peroxide, Sulphur and Zinc (Deville and Debray, Roscoe 1913)

Osmium: From the Tetroxide Distillate through Sulphide and Ammonium Osmichloride (Roscoe 1913)

Ruthenium: Osmiridium Opened with Barium Peroxide and Nitrate, Separated as Ruthenate (Deville and Debray, Roscoe 1913)

Iridium: Osmiridium Opened with Zinc and Barium Nitrate, Thrown Down as Ammonium Iridichloride (Deville and Debray, Roscoe 1913)

Palladium: Palladium-Gold Fused with Silver, Parted in Nitric Acid, Thrown Down by Zinc (Roscoe 1913)

Rubidium: Rubidium Chloride Heated with Calcium in an Iron Boat in Vacuum (Hackspill, Thorpe 1912)