File list
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| Date | Name | Thumbnail | Size | Description | Versions |
|---|---|---|---|---|---|
| 16:58, 28 September 2020 | Vanadium V tetraperoxide.jpg (file) |  |
1.94 MB | Solution of a blue V(V) tetraperoxospecies, V(O<sub>2</sub>)<sub>4</sub><sup>3-<sup> | 1 |
| 16:53, 28 September 2020 | Vanadium V oxoperoxide.jpg (file) |  |
1.93 MB | Solution of a red V(V) oxoperoxospecies, VO(O<sub>2</sub>)<sup>+</sup> | 1 |
| 16:51, 28 September 2020 | Vanadium V oxodiperoxide.jpg (file) |  |
1.83 MB | Solution of a yellow V(V) oxoperoxospecies, VO(O<sub>2</sub>)<sub>2</sub><sup>-</sup> or VO<sub>2</sub>(O<sub>2</sub>)<sub>2</sub><sup>3-</sup> | 1 |
| 16:45, 28 September 2020 | Vanadium IV ions basic.jpg (file) |  |
1.92 MB | Solution of V(IV) in basic solution, the red-brown color is due to VO(OH)<sub>3</sub><sup>-</sup> | 1 |
| 16:43, 28 September 2020 | Vanadium IV ions acid.jpg (file) |  |
1.92 MB | Solution of V(IV) in HCl, the blue color is due to VO<sup>2+</sup>, made by the oxidation of V(III) with chlorine in acidic solution | 1 |
| 16:40, 28 September 2020 | Vanadium III hydroxide.jpg (file) |  |
1.94 MB | Precipitate formed from a solution of VCl<sub>3</sub> and NaOH, likely V(OH)3<sub>3</sub> or a hydrated oxide of V(III) | 1 |
| 16:38, 28 September 2020 | Vanadium III chloride water.jpg (file) |  |
1.75 MB | Solution of VCl<sub>3</sub> in water, the brown color is due to various hydrolysed species like VO<sup>+</sup> | 1 |
| 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 |
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