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

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Industry 2.0 — Electricity, Steel & Oil (1870)

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Industry 2.0 — Electricity, Steel & Oil (1870)

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

Charlie གྱིས

286 ནང་ལས་ 24 སྟོན་དོ།

སྲོག་མེད

བིལུ་པིརིན་ཊི (༢༨༦)

Bismuth: Sweated Out of Native Ore in Inclined Iron Tubes, the Schneeberg Way (Thorpe, 1912)

Mercury: Cinnabar Ore Retorted with Lime, the Littai Way (Thorpe, 1912)

Chlorine: Manganese Ore and Hydrochloric Acid in Stone Stills (Thorpe, 1912)

Solid Carbon Dioxide: Liquid Let Out into a Woollen Bag and Pressed in a Wooden Mould (Landolt, Thorpe 1912)

Liquid Carbon Dioxide in Thilorier's Apparatus: Baking Soda and Sulphuric Acid Under Their Own Pressure (Sloane, 1899)

Chromium Trioxide: Zettnow's Dichromate and Sulphuric Acid Method (Thorpe, 1912)

Mercurous Sulfate: Mercury Dissolved in Sulphuric Acid with Gentle Heat (Thorpe, 1912)

Sulfur Dioxide: Manganese Dioxide Heated with Sulphur (Thorpe, 1913)

Sulfur Dioxide: Sulphur Burnt in Air or Oxygen (Thorpe, 1913)

Lepidolite Lithia Residue: Troost's Barium Fusion, Lithium Chloride Taken Out (Thorpe, 1912)

Vanadium Trioxide: the Pentoxide Reduced with Carbon at Red Heat (Thorpe, 1913)

Sodium Thiosulfate: Soda and Sulphur Fusion (Thorpe, 1913)

Ammonium Carbonate: Sublimed from Sulphate and Chalk (Lunge, 1887)

Gasholder: Water-Sealed Zinc Gasometer with Balance Weights (Ramsay & Travers, 1898)

Aspirator: a Vessel of Water with a Tap at the Bottom (Sutton, 1904)

Sodium Hydroxide Solution: Normal Caustic Soda, 40 g per Litre (Sutton, 1904)

Pneumatic Trough with Gas Jars: a Tin Basin and Wide-Mouth Bottles (Woodhull, 1895)

Glass Delivery Tube: Cut and Bent over a Broad Flame (Frary, 1914)

Glass Tube: Drawn by Two Glassmakers Walking Apart (Pellatt, 1849)

Bunsen Burner: Central Gas Jet, Air Holes and Mixing Tube (Roscoe & Schorlemmer, Treatise on Chemistry I, 1905)

Gas Washing Bottle: a Single-Neck Bottle Made into a Safety Wash-Bottle (Gattermann, 1901)

Fume Hood (Ducted): Sloping Stone Baffle Set from Outside by a Crank (Liptay, US 2,779,265, 1957)

Muffle Furnace: Electric, a Talc Tube Wound with Resistance Wire in a Plug-In Housing (Marsh, US 861,744, 1907)

Tube Furnace: Porcelain Tube Wound with Platinum Wire in a Heat-Retaining Jacket (Stansfield, 1914)