File:DSC01968 - Fe (II) Reactions.JPG - Wikimedia Commons

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In other projects Appearance move to sidebar hide From Wikimedia Commons, the free media repository (Redirected from File:DSC01968 - Fe (II) Reactions.JPG) Size of this preview: 333 × 599 pixels. Other resolutions: 133 × 240 pixels | 267 × 480 pixels | 427 × 768 pixels | 1,074 × 1,931 pixels. Original file (1,074 × 1,931 pixels, file size: 580 KB, MIME type: image/jpeg)File informationStructured data

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DescriptionFe (II) Reactions.jpg	English: Reactions of Ammonium iron(II) sulfate (Mohr's Salt). From left to right: With (NH4)2S: S2- + Fe2+ -> FeS(s) (black solid) With NaOH: Fe2+ + 2OH- -> Fe(OH)2(s) (this is a white salt, but because of minimum Fe(III) amounts it often comes with a slightly green touch; this is what happened here. Because of the air oxygen the salt above reacts to brown Fe(OH)3) With surplus NH3: Fe2+ + 6NH3 -> [Fe(NH3)6]2+ (probably with some nitroso-pentamine-salts and oxygen products. On the surface you can see the reaction with air oxygen again. To have a proper reaction, the reaction is to be made completely without oxygen!) With Na2CO3: Fe2+ + (CO3)2- -> FeCO3(s) (This is a white solid! But because of side reactions with oxygen and Fe(III), here it comes in a green suspension.) Deutsch: Reaktionen mit Ammonium-Eisen(II)-Sulfat (Mohrsches Salz). Von links nach rechts: Mit (NH4)2S: S2- + Fe2+ -> FeS(s) (schwarzer Niederschlag) Mit NaOH: Fe2+ + 2OH- -> Fe(OH)2(s) (Dies ist ein weißes Salz, aber durch minimale Fe(III)-Verunreinigungen erhält man es meistens mit einem Grünstich; dies war auch hier der Fall. Durch den Luftsauerstoff reagiert das Hydroxid an der Oberfläche weiter Fe(OH)3.) Mit NH3 im Überschuss: Fe2+ + 6NH3 -> [Fe(NH3)6]2+ (Vermutlich mit einigen Nitroso-Pentammin-Salzen und Oxidationsprodukten durch den Luftsauerstoff, dessen Wirkung auch hier wieder an der Oberfläche sichtbar ist. Um eine saubere Reaktion zu [Fe(NH)6]2+ zu erhalten, muss komplett unter Luftabschluss gearbeitet werden!) Mit Na2CO3: Fe2+ + (CO3)2- -> FeCO3(s) (Dies ist ein weißer Feststoff! Aber aufgrund Nebenreaktionen mit Sauerstoff und Fe(III) liegt es hier in einer grünen Suspension vor.)
Date	14 December 2009
Source	Own work
Author	Tubifex

Licensing

[edit] I, the copyright holder of this work, hereby publish it under the following licenses:

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

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Date/Time	Thumbnail	Dimensions	User	Comment
current	14:20, 21 December 2009		1,074 × 1,931 (580 KB)	Tubifex (talk | contribs)	{{Information |Description={{en|1=Reactions of Ammonium iron(II) sulfate (Mohr's Salt). From left to right: With (NH4)2S: S2- + Fe2+ -> FeS(s) (black solid) With NaOH: Fe2+ + 2OH- -> Fe(OH)2(s) (this is a white salt, but because of minimum Fe(III) amou

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• File:DSC01968 - Fe (II) Reactions.JPG (file redirect)

File usage on other wikis

The following other wikis use this file:

• Usage on ca.wikipedia.org
  • Hidròxid de ferro(II)
• Usage on de.wikibooks.org
  • Praktikum Anorganische Chemie/ Ammoniumsulfidgruppe
  • Praktikum Anorganische Chemie/ Druckversion
  • Praktikum Anorganische Chemie/ Kationentrennungsgang
• Usage on fi.wikipedia.org
  • Rauta(II)hydroksidi
• Usage on simple.wikipedia.org
  • Iron(II) hydroxide
• Usage on zh.wikipedia.org
  • 氢氧化亚铁

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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Camera manufacturer	Sony Ericsson
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	11:51, 14 December 2009
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop CS2 Windows
File change date and time	14:34, 21 December 2009
Y and C positioning	Co-sited
Exif version	2.2
Date and time of digitizing	11:51, 14 December 2009
Meaning of each component	Y Cb Cr does not exist
APEX exposure bias	0
Metering mode	Center weighted average
Light source	Unknown
Flash	Flash did not fire, compulsory flash suppression
Supported Flashpix version	1
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
Supported Flashpix version	1
Image width	1,074 px
Image height	1,931 px
Date metadata was last modified	15:34, 21 December 2009

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author name string: TubifexURL: https://commons.wikimedia.org/wiki/user:TubifexWikimedia username: Tubifex

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14 December 2009

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Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Fe_(II)_Reactions.jpg&oldid=1101021719" Categories:

• Chemical reactions
• Mohr's salt
• Iron carbonates

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• Taken with Sony Ericsson K800i

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