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Hatari
Chloroplatinic Acid: Platinum Dissolved in Aqua Regia, Nitric Acid Driven Off with Hydrochloric Acid (Thorpe 1912)
Platinum dissolves in aqua regia. Evaporate the solution with hydrochloric acid until no nitric acid is left, and you have chloroplatinic acid, the soluble form of platinum used to put it on catalysts.
Result: chloroplatinic acid, H2PtCl6, crystallising with 6 molecules of water as reddish-brown prisms that take up water from the air.
Source: Thorpe, Dictionary of Applied Chemistry, vol. 4 (1912), Platinum. Not given: amounts, how it is heated, how many evaporations. Danger: aqua regia burns and gives off chlorine. Picture drawn by Youblob.
Juu
1 day
Maudhui hatari
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IngiaMchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
Hatari
Aqua Regia: 1 Volume of Nitric Acid to 4 of Hydrochloric Acid (Thorpe 1912)
na Charlie
Viwandani
3
0
0
0
0
0
Hatari
Isolating Platinum from Alluvial Deposits — The Unwanted Silver of the Conquistadors
na Peter
Uchimbaji madini
67
0
0
0
6
0
Hatari
Spirit of Salt: Hydrochloric Acid from Sea Salt and Oil of Vitriol
na Charlie
Isiyo hai
27
0
0
0
0
0
CC0 Umma Wote
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