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.

ที่มา : koen2all

ลิงค์ : http://youtu.be/IzHV6Lmz3DE

อัพโหลดโดย : koen2all