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Date Name Thumbnail Size Description Versions
16:36, 28 September 2020 Vanadium III chloride HCl.jpg (file) 1.81 MB Solution of VCl<sub>3</sub> in HCl 1
16:35, 28 September 2020 Vanadium II.jpg (file) 1.98 MB Solution of V(II) made by the reduction of V(III) with zinc in hydrochloric acid 1
13:21, 27 September 2020 Hydroxylamine hydrochloride micro.jpg (file) 266 KB Crystals of hydroxylamine hydrochloride under the microscope, horizontal view window is about 3 mm 1
13:20, 27 September 2020 Hydroxylamine hydrochloride2.jpg (file) 2.53 MB Small crystals of hydroxylamine hydrochloride made from the hydrolysis of nitromethane 1
13:16, 27 September 2020 Hydroxylamine hydrochloride1.jpg (file) 3.13 MB   1
09:39, 25 September 2020 Polyselenide.jpg (file) 1.62 MB A solution of sodium polyselenide in excess sodium hydroxide solution, made by dissolving selenium powder in hot 40% NaOH. 1
09:38, 25 September 2020 Selenium cation.jpg (file) 1.77 MB The green selenium cation Se8(2+) in sulfuric acid solution. It was made by dissolving selenium powder in hot concentrated sulfuric acid. 1
09:37, 25 September 2020 Red Selenium.jpg (file) 2.18 MB A sample of red selenium produced by the reduction of selenous acid with sulfur dioxide. 1
08:39, 11 August 2020 Naphthalene sublimated crystals.jpg (file) 1.08 MB Microscopic view of sublimated naphthalene crystals. Horizontal view window is about 4.5 mm wide. 1
08:38, 11 August 2020 Naphthalene mothballs.jpg (file) 2.86 MB Mothballs containing naphthalene 1
09:50, 4 August 2020 Tungsten carbide.jpg (file) 1.97 MB A small piece of tungsten carbide 1
18:22, 3 August 2020 Monosodium glutamate micro.jpg (file) 336 KB Commercial monosodium glutamate crystals under the microscope, horizontal view window is about 3 mm 1
18:01, 3 August 2020 Nickel aminoguanidine perchlorate micro.jpg (file) 346 KB Bis(aminoguanidine)nickel(II) perchlorate crystals under the microscope, horizontal view window is about 3 mm 1
18:01, 3 August 2020 Nickel aminoguanidine perchlorate.jpg (file) 1.91 MB Bis(aminoguanidine)nickel(II) perchlorate 1
17:59, 3 August 2020 Nickel aminoguanidine sulfate and nitrate.jpg (file) 3.62 MB Bis(aminoguanidine)nickel(II) sulfate (left) and Bis(aminoguanidine)nickel(II) nitrate (right) 1
17:58, 3 August 2020 Aminoguanidine bicarbonate micro.jpg (file) 373 KB Aminoguanidine bicarbonate made from the reduction of nitroguanidine with zinc powder and ammonium sulfate as a microscopic view, horizontal view window is about 3 mm 1
17:56, 3 August 2020 Aminoguanidine bicarbonate 2.jpg (file) 3.15 MB Aminoguanidine bicarbonate made from the reduction of nitroguanidine with zinc powder and ammonium sulfate 1
17:36, 3 August 2020 Guanidine nitrate.jpg (file) 2.43 MB Guanidine nitrate made from melting urea and ammonium nitrate with a silicon dioxide catalyst after one recrystallization 1
17:25, 3 August 2020 Nitroguanidine micro.jpg (file) 490 KB Microscope view, the horizontal view window is about 3 mm across 1
17:24, 3 August 2020 Nitroguanidine 2.jpg (file) 2.44 MB   1
10:30, 21 March 2020 Boron nitride.jpg (file) 3.35 MB Sample of hexagonal BN on a watch glass. 1
10:24, 21 March 2020 Boron nitride bottle.jpg (file) 3.31 MB Sample of hexagonal BN with storage bottle. 1
10:11, 10 November 2019 Aminoguanidine bicarbonate.jpg (file) 2.67 MB Made from calcium cyanamide and hydrazine sulfate 1
10:49, 27 October 2019 Silver cyanamide.jpg (file) 3.7 MB The yellow precipitate of silver cyanamide is used as a test for the ion. 1
10:48, 27 October 2019 Potassium bisulfate.jpg (file) 3.54 MB Crude potassium bisulfate left from a nitric acid distillation. 1
10:48, 27 October 2019 Copper hydroxide.jpg (file) 3.51 MB Old sample of copper(II) hydroxide made via the method shown by NileRed. 1
10:47, 27 October 2019 Calcium cyanamide.jpg (file) 3.51 MB Crude calcium cyanamide made from calcium cyanurate. 1
12:44, 12 October 2019 Calcium cyanurate.jpg (file) 3.4 MB Calcium cyanurate 1
12:43, 12 October 2019 Cyanuric acid.jpg (file) 3.57 MB Commercial cyanuric acid 1
12:09, 26 September 2019 Sodium metabisulfite.jpg (file) 3.48 MB Commercial sodium metabisulfite sample 1
12:08, 26 September 2019 Sodium dithionite.jpg (file) 3.66 MB Commercial sodium dithionite sample 1
17:31, 4 September 2019 Trans copper glycinate.jpg (file) 2.75 MB Trans-bis(glycinato)copper(II) monohydrate 1
15:33, 3 September 2019 Cis copper glycinate.jpg (file) 2.54 MB Cis-bis(glycinato)copper(II) monohydrate 1
15:23, 3 September 2019 Sodium glycinate.jpg (file) 2.6 MB Sodium salt of glycine, made from the amino acid and sodium carbonate with drying at room temperature 1
15:10, 3 September 2019 Sodium nitrate.jpg (file) 4.17 MB Sodium nitrate crystals grown by slow evaporation over CaCl2 1
20:33, 18 August 2019 Hydrazine sulfate.jpg (file) 3.33 MB Hydrazine sulfate made from bleach and urea and was purified using the ketazine process. 1
07:51, 14 August 2019 ETN crystals.jpg (file) 2.55 MB Crystals of ETN, displayed with friendly permission of original author 1
14:25, 31 July 2019 Potassium glycinate.jpg (file) 4.23 MB Potassium glycinate, made from glycine and potassium carbonate + recrystallization, likely some hydrate. The saturated solution is very viscous. 1
14:22, 31 July 2019 Urea nitrate crystals.jpg (file) 2.31 MB Crystals of urea nitrate grown by evaporation 1
21:22, 15 July 2019 Ammonium chlorate.jpg (file) 2.43 MB Still slightly damp ammonium chlorate, made from concentrated solutions of sodium chlorate and ammonium nitrate and cooled after that 1
23:32, 14 July 2019 Calcium chloride anhydrous.jpg (file) 1.51 MB Anhydrous calcium chloride used for dehumidification. 1
23:31, 14 July 2019 Carbonic acid.jpg (file) 2.04 MB Solution of carbon dioxide in water 1
23:30, 14 July 2019 Water.jpg (file) 1.99 MB   1
22:53, 14 July 2019 Urea nitrate.jpg (file) 3.37 MB Urea nitrate made from nitric acid and urea. 1
12:00, 3 July 2019 TACN TACS.jpg (file) 2.53 MB Left: TACN, tetraaminecopper(II) nitrate (possibly hydrated). Right: TACS, tetraaminecopper(II) sulfate monohydrate. 1
22:30, 2 July 2019 Tetraaminecopper(ii) sulfate monohydrate.jpg (file) 3 MB TACS, made from a solution of copper sulfate in dilute ammonia and a layer of ethanol diffusing into it. 1
22:27, 2 July 2019 Tetraaminecopper(ii) nitrate.jpg (file) 4.89 MB TACN, made from copper oxide, ammonium nitrate and concentrated ammonia. 1
17:49, 20 June 2019 Phosphoric acid.jpg (file) 1.14 MB Phosphoric acid, picture by [https://www.youtube.com/channel/UCdvlpwJZqvUtoZyO-K9h2kQ Corrosive Chemistry] 1
17:14, 20 June 2019 T shaped three way adapter.jpg (file) 2.4 MB T-shaped three way adapter (two female, one male joint) 1
17:13, 20 June 2019 Vertical distillation receiver adapter.jpg (file) 2.46 MB Vertical distillation receiving adapter or straight vacuum take-off adapter 1
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