Transition Metal & Post Transition Metal Chemistry
All of my work with the run of the mill transition metals and post transition metals. The precious metals (gold, silver, palladium, platinum, ruthenium, osmium, and rhenium) and the famously toxic elements (mercury, thallium, lead, arsenic, antimony, beryllium, and cadmium) have their own dedicated playlists and so are not included here.
In this video I demonstrate the synthesis of a lanthanide oxide by thermal decomposition of its oxalate salt using praseodymium. We start off with praseodymium metal and convert that into Pr(III)Cl3 by reacting the metal with HCl. The chloride is then converted into the oxalate which is filtered off and dried. The dry oxalate powder is then put into a crucible and heated until all of the oxalate has converted to the oxide.
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In this video I prepare barium sulfide from iron, sulfur, and barium hydroxide octahydrate. There were some hiccups along the way but in the end I was able to get a good product that seems to be largely free of barium carbonate.
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In this video I prepare solid hexabromoplatinic acid from precipitated platinum metal, azeotropic HBr, and azeotropic HNO3. Once the solution of hexabromoplatinic acid is prepared it is dried using the Redneck Rotovap. After this in a separate experiment I prepare an aqueous solution of mercury(II) cyanide from potassium cyanide and mercuric oxide.
Inorganic Laboratory Preparations by Gert Schlessinger: https://b-ok.cc/book/666160/f02534
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In this short video I demonstrate the reaction of clove oil, pseudoephedrine tablets, and sassafras oil with a saturated solution of picric acid in water as well as the oxidation of silver with bismuth tetroxide to what I highly suspect is silver(I,III) oxide.
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In this video I make up some gunpowder based on a formulation I got off Wikipedia. I also demonstrate the ignition of a barium chlorate and sucrose mix with concentrated sulfuric acid.
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In this video I prepare the interhalogen compound iodine monobromide from equimolar amounts of elemental bromine (10 grams) and elemental iodine (15.88 grams). IBr is an interesting compound since the iodine bears a partial positive charge and the bromine a partial negative carge. IBr is used to cleave carbon-metal bonds to produce organic iodides and metal bromides. It is also used to convert alkenes into vicinal bromoiodides, effect the electrophilic cyclization of homoallylic carbonates, and alpha-bromination of steroidal aldehydes and ketones. IBr has also been used for brominating phenol and aryl ether derivatives. (Information taken from the Encyclopedia of Reagents for Organic Sythesis).
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In this two part series I demonstrate how to make some of the most commonly used reagent tests from inexpensive and easy to obtain chemicals. I then demonstrate the use of each test by showing its reaction with 14 different unscheduled chemicals that are readily available to the public. Some are as common and everyday as table salt and table sugar while some are more exotic like hexamine which is used in camping stove fuel tablets. In my laboratory I use these compounds as a way to check that each batch of reagent is working properly. I also use them to make sure that a batch of reagent is still good after it has been stored for some time. It is my hope that I can demonstrate the fascinating chemistry and versatility of these general spot test reagents.
The formulations and the test results can also be viewed in text form on my website at www.poormanschemist.com This is my personal website that I am creating to be a resource for home chemists everywhere. Along with my online home lab notebooks (written as I work so updated very frequently) you will find a link to the Home Chemists Grimoire. In it I have recorded every synthesis and test that I have personally tried out and that have been successful. If you wish to go to the reagent test formulations directly then click the following link: http://www.poormanschemist.com/PMC_Grimoire/PMC_Grimoire.html#marquis Just scroll down from there and you can see all the formulations and all of the test results from this and the second video as well as some extra material. :-)
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This video is a follow up on Random Experiments Int.'s video on tin(IV) iodide. In that video he made mention of the compound that is the subject of this video. He said that he would have tried making it but he did not have any RbI. As luck would have it I had both RbI and SnI4 in my inventory already. After discussing it with him first and getting his blessing I went ahead and made up some azeotropic HI (the only thing I lacked to try the experiment) and gave making the compound a try. It's not a compound I would make twice which is why this video is done in a "show and tell" style. The SnI4 fumes are amongst the worst I have EVER dealt with! It may look like a happy bright orange crystal sitting there in its jar but heat it up and holy fucking shit. But trust me you get all the gory details. :-)
Random Experiments Int. Original Tin(IV) Iodide Video:
https://www.youtube.com/watch?v=-twfSKOg6To&t=312s
The Nature of the Metal-Ligand Bonds in Hexahalostannates(IV) and Ammonium Hexachloroplumbate(IV) Studied by the Pure Quadrupole Resonance of Halogens
https://www.journal.csj.jp/doi/pdf/10.1246/bcsj.36.1662
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In this video I prepare CsReO4 from rhenium metal. The bulk piece of rhenium is converted to precipitated rhenium powder which is then dissolved in a minimal amount of nitric acid to form perrhenic acid. This is then converted to ammonium perrhenate by addition of aqueous ammonia. Addition of a slight stoichiometric excess of cesium chloride creates cesium perrhenate.
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