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Toon onbeantwoorde berichten | Toon actieve onderwerpen Het is nu 19 sep 2020, 14:58



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 airmax97sale 
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Geregistreerd: 25 jun 2018, 11:57
Berichten: 252
Bericht airmax97sale
Gerhold Lin
Submitted 2018-12-19 03:42:45 Lead(ii) thiocyanate is a chemical with a molecular weight of 439.5296.
Alias: lead dithiocyanate; lead(2+) bis(thiocyanate); lead(4+) tetrakis(thiocyanate)
CAS: 592-87-0
EINECS: 209-774-6
Molecular formula: C4N4PbS4
Molecular weight: 439.5296

Lead(ii) thiocyanate is prepared by the reaction of sodium thiocyanate with nitric acid microacid and lead nitrate. It is prepared by the action of sodium thiocyanate (or potassium) refined by recrystallization and lead nitrate. 25 g of sodium thiocyanate and 45 g of lead nitrate were each dissolved in 100 mL of distilled water Air Max 97 White Sale , and each solution was cooled to 0 to 5 C. The sodium thiocyanate solution was added to the lead nitrate solution with stirring. A lead thiocyanate precipitate was separated by filtration, and the precipitate was washed with ice water. It is dried in a dark place on a suitable desiccant such as anhydrous CaCl2.


29 apr 2019, 05:14
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Geregistreerd: 06 apr 2020, 09:29
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Bericht Re: airmax97sale
Really disappointed to see this brand has reduced the quality of their products and uses aggressive sales techniques just to sale their products. This is really messy and difficult to deal with because these brands don’t realize that they are doing something wrong. Must recommend college assignment help update to everyone.


06 apr 2020, 09:31
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Geregistreerd: 18 feb 2020, 10:52
Berichten: 1
Bericht Re: airmax97sale
You cannot imagine how tired of studying I am. I am about to finish writing enrique journey chapter summary. I am planning to get rest after that. I will take 3 days off at work and go to the beach.


09 sep 2020, 14:27
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