File list

This special page shows all uploaded files.

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Date	Name	Size	Description	Versions
18:32, 6 March 2019	Potassium permanganate.jpg (file)	1.85 MB	Potassium permanganate crystals.	1
18:17, 5 March 2024	Quinine sulfate solution.jpg (file)	1.68 MB	Fluorescence of an acidic solution of quinine (along other related cinchona alkaloids).	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
16:36, 20 June 2019	Red phosphorus.jpg (file)	4.81 MB	Red phosphorus, this sample has a slight smell of phosphine.	1
21:47, 23 May 2019	Resorcinol.jpg (file)	3.73 MB	Resorcinol, bought from a chemical supplier	1
20:37, 2 February 2019	Salicylic acid crystals.jpg (file)	1.96 MB	Recrystallized salicylic acid obtained by the hydrolysis of acetylsalicylic acid from aspirin tablets.	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
17:12, 20 June 2019	Sideways drying tube.jpg (file)	2.42 MB	An angled drying tube	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
15:18, 13 August 2022	Singlet oxygen.jpg (file)	521 KB	Chemiluminescence of singlet oxygen observed when passing chlorine gas into basic hydrogen peroxide.	1
18:38, 5 April 2019	Sodium acetate iron iii chloride.jpg (file)	1.59 MB	Complex between an acetate (here sodium acetate) and iron(III)-ions (here iron(III)-chloride).	1
20:15, 1 February 2019	Sodium acetate trihydrate.jpg (file)	2.21 MB	Crystals of sodium acetate trihydrate can grow very dense and in large number.	1
20:41, 2 February 2019	Sodium chlorate crystals.jpg (file)	2.1 MB	Sodium chlorate crystals obtained from a chlorate cell by repeated recrystallization from water.	1
09:40, 14 August 2023	Sodium chlorate polarized.jpg (file)	2.25 MB	Sodium chlorate crystals grown from cooling a pure, slightly supersaturated solution. They are placed between two polarizing filters to show their optical activity. Both enantiomorphic forms are present.	1
15:22, 23 May 2019	Sodium chromate solution.jpg (file)	2.82 MB	A solution of sodium chromate in basic conditions.	1
20:45, 2 February 2019	Sodium copper dichloroisocyanurate.jpg (file)	3.63 MB	Sodium copper dichloroisocyanurate, see http://www.sciencemadness.org/talk/viewthread.php?tid=66089 and http://agedspoonchemistry.blogspot.com/2016/01/sodium-copper-dichloroisocyanurate.html and http://woelen.homescience.net/science/chem/exps/raw_mater...	1
15:24, 23 May 2019	Sodium dichromate solution.jpg (file)	2.32 MB	A solution of sodium dichromate in acid conditions. The foaming is due to carbon dioxide which evolved because the sample contained carbonates and should not happen with pure samples.	1
12:08, 26 September 2019	Sodium dithionite.jpg (file)	3.66 MB	Commercial sodium dithionite sample	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
13:54, 23 May 2021	Sodium hypophosphite.jpg (file)	1,002 KB	Sodium hypophosphite, probably the monohydrate	1
12:09, 26 September 2019	Sodium metabisulfite.jpg (file)	3.48 MB	Commercial sodium metabisulfite sample	1
15:10, 3 September 2019	Sodium nitrate.jpg (file)	4.17 MB	Sodium nitrate crystals grown by slow evaporation over CaCl2	1
12:23, 17 June 2019	Sodium perchlorate in acetone.jpg (file)	2.27 MB	Sodium perchlorate crystallizing out of acetone.	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
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
16:05, 15 February 2019	Tartaric acid.png (file)	3.34 MB	Commercial available tartaric acid crystals (pharmaceutical grade).	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
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
21:52, 19 October 2020	Tetraiodobismuthate.jpg (file)	3.16 MB	A solution of bismuth(III) with excess potassium iodide forms the orange complex ion tetraiodobismuthate [BiI<sub>4</sub>]<sup>-</sup>	1
17:31, 4 September 2019	Trans copper glycinate.jpg (file)	2.75 MB	Trans-bis(glycinato)copper(II) monohydrate	1
21:44, 27 February 2021	Trichlorohexahydrotriazine.jpg (file)	1.06 MB	1,3,5-Trichlorohexahydrotriazine, an unstable organic chloramine prepared from hexamine, acetic acid and sodium hypochlorite	1
19:47, 9 September 2021	Trimethyl borate flame.jpg (file)	353 KB	The trimethyl borate/methanol azeotrope set on fire produces a vibrant green flame.	1
19:48, 9 September 2021	Trimethyl borate methanol azeotrope.jpg (file)	1,011 KB	Trimethyl borate/methanol azeotrope distilled from methanol, boric acid and catalytic sulfuric acid.	1
09:50, 4 August 2020	Tungsten carbide.jpg (file)	1.97 MB	A small piece of tungsten carbide	1
21:04, 8 March 2019	Urea.jpg (file)	2.36 MB	Urea, made from AdBlue.	1
22:53, 14 July 2019	Urea nitrate.jpg (file)	3.37 MB	Urea nitrate made from nitric acid and urea.	1
14:22, 31 July 2019	Urea nitrate crystals.jpg (file)	2.31 MB	Crystals of urea nitrate grown by evaporation	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
16:36, 28 September 2020	Vanadium III chloride HCl.jpg (file)	1.81 MB	Solution of VCl<sub>3</sub> in HCl	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
16:40, 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
16:43, 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
16:45, 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
16:51, 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
16:53, 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
16:58, 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
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
15:28, 25 May 2021	Violuric acid monohydrate.jpg (file)	3.03 MB	Violuric acid monohydrate, prepared and photographed by SM user RustyShackleford	1
23:30, 14 July 2019	Water.jpg (file)	1.99 MB		1
13:54, 23 May 2021	Zinc oxide.jpg (file)	1.13 MB	Commercial zinc oxide	1