File:DSC01969 - Fe(III) Reactions.JPG
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Summary
[edit]DescriptionDSC01969 - Fe(III) Reactions.JPG |
English: Reactions with Fe(NO3)3. From left to right:
Pure solution of Fe(NO3)3. It has a brownish orange color. With HCl: [2Fe3+ + 6NO3- + 2H+ + 2Cl- -> 2Fe2+ + 4NO3- + 2H+ + 2NO3- + Cl2] = 2Fe(NO3)3 + 2HCl -> 2Fe(NO3)2 + 2HNO3 + Cl2 (The solution changes its colour to a very light, pale yellow.) With H2S: 2Fe3+ + H2S -> 2Fe2+ +S(s) + 2H+ (milky suspension of sulfur) With (NH4)2S: 2Fe3+ + 3S2- -> Fe2S3 (s); Fe2S3 -> 2FeS(s) + S(s) (the dark green color results from black FeS mixed with yellowish sulfur) Fe(NO3)3 + 3NaOH -> Fe(OH)3(s) + 3 NaNO3 (Weakly soluble even in big surpluses of NH3 or OH-) With Na2CO3: 3NaOH (+ H2CO3) + Fe(NO3)3 -> Fe(OH)3 + 3NaNO3 (+H2CO3) (So this will also deliver Fe(OH)3.)Deutsch: Reaktionen mit Fe(NO3)3. Von links nach rechts:
Reine Lösung von Fe(NO3)3. Diese ist von bräunlich-orangener Farbe. Mit HCl: [2Fe3+ + 6NO3- + 2H+ + 2Cl- -> 2Fe2+ + 4NO3- + 2H+ + 2NO3- + Cl2] = 2Fe(NO3)3 + 2HCl -> 2Fe(NO3)2 + 2HNO3 + Cl2 (Die Lösung entfärbt sich zu einem sehr hellen, blassen Gelb.) With H2S: 2Fe3+ + H2S -> 2Fe2+ +S(s) + 2H+ (milchige Schwefel-Suspension) With (NH4)2S: 2Fe3+ + 3S2- -> Fe2S3 (s); Fe2S3 -> 2FeS(s) + S(s) (die dunkelgrüne Farbe entsteht durch gelben Schwefel, verteilt in schwarzem Eisensulfid) Fe(NO3)3 + 3NaOH -> Fe(OH)3(s) + 3 NaNO3 (Selbst in großen Überschüsses an OH- oder NH3 kaum löslich.) With Na2CO3: 3NaOH (+ H2CO3) + Fe(NO3)3 -> Fe(OH)3 + 3NaNO3 (+H2CO3) (Hier entsteh also auch Fe(OH)3.) |
Date | |
Source | Own work |
Author | Tubifex |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:15, 21 December 2009 | 1,303 × 1,461 (514 KB) | Tubifex (talk | contribs) | {{Information |Description={{en|1=Reactions with Fe(NO3)3. From left to right: Pure solution of Fe(NO3)3. It has a brownish orange color. With HCl: [2Fe3+ + 6NO3- + 2H+ + 2Cl- -> 2Fe2+ + 4NO3- + 2H+ + 2NO3- + Cl2] = 2Fe(NO3)3 + 2HCl -> 2Fe(NO3)2 + 2HNO3 |
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Camera manufacturer | Sony Ericsson |
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Camera model | K800i |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/2.8 |
ISO speed rating | 100 |
Date and time of data generation | 12:15, 14 December 2009 |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 14:36, 21 December 2009 |
Y and C positioning | Co-sited |
Exif version | 2.2 |
Date and time of digitizing | 12:15, 14 December 2009 |
APEX exposure bias | 0 |
Metering mode | Center weighted average |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Scene capture type | Standard |
Subject distance range | Macro |