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Written by pimpitcha
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Friday, 14 November 2014 09:27 |
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This video explains bleeding iron potassium thiocyanate is dissolved in water. 1 mL of hydrogen peroxide (35%) is added. Finally, 1 mL of concentrated hydrochloric acid is added. The solution is poured in a test tube. Next, some iron wire is put in the tube. Fe3+ions are formed due to the reaction between H202, HCI and iron. SCN-ions react with Fe3+ions, forming blood red iron(III) thiocyanate.
ลิงค์ : http://youtu.be/IzHV6Lmz3DE
อัพโหลดโดย : koen2all
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