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How to reduce tin? • Physics Forums The discussion focuses on methods to reduce tin from scrap pewter, particularly exploring the use of ascorbic acid as a reducing agent There is uncertainty about ascorbic acid's effectiveness on tin compared to its action on copper and silver An alternative proposed is oxalic acid, which may drive the reaction through CO2 release, although its low solubility poses contamination risks The
Flash Joule Heating (FJH) Method for treating process waste streams I caught the tail end of a video about a new application for treating chemical or process waste, which is applied to 'red' mud or contaminated bauxite residue, but the person of interest mention recovering critical minerals from consumer electronics, as well as treating mine tailings and
How to calculate flash point of mixture? • Physics Forums Hey guys, I would like to create a mixture out of two liquids with an ideal flash point of around 70ºF The liquids I have to work with are 200 proof (100%) isopropyl alcohol (2-propanol) and aliphatic hydrocarbon mixture (aka hydrotreated petroleum distillates) What I'm looking for is the
Nobel Prize in Chemistry 2025 • Physics Forums Susumu Kitagawa, Richard Robson and Omar M Yaghi are awarded the Nobel Prize in Chemistry 2025 for the development of a new type of molecular architecture The constructions they created – metal–organic frameworks – contain large cavities in which molecules can flow in and out Researchers have
Counting d-electrons in M(I) transition metals • Physics Forums Formally, d-electron count is calculated by subtracting the group number of the metal by its oxidation state If we limit ourselves to the first row transition metals, the group number - 2 = #d-electrons Co(I) (group 9) only loses one electron Its electron configuration becomes [Ar]3d74s1
SOLD: Primary Arms Micro dot with kill flash and ADM mount bundle SOLD: Primary Arms Micro dot with kill flash and ADM mount bundle I have a like new micro dot sight with kill flash from primary arms for sale It comes in a bundle with the American Defense ADT1 Cowitness Mount I have not used the sight I had it mounted on my AR but never shot it