Iodine Test: The Magic of Science

A simple Iodine test, the clear liquid after a short time turns blue/black, an amazing result as it happens so suddenlly. A-Level Chemistry lessons are so much fun! The chemicals required are:
12 ml of 0.1 M Potassium Iodide (KI)
4 ml of 0.01M Sodium Thiosulphate (Na2S203)
12 ml of Water (H20)
1 ml of Starch

This should all be mixed in a conical flask and then the following should be added together:
12 ml of 0.5M Sulphuric Acid (H2SO4)
12 ml of Hydrogen Peroxide (H2O2)

The mixture turns blue due to the starch indicating the sudden presence of Iodine after the reaction has completely reacted.

Again I apologise for the very poor camera quality, it was on my cell phone and the first 30secs is just my mate shaking it to get it going. But you can kinda see what's going on...

Category:

Science & Technology

Tags:

• Chemistry
• A-Level
• level
• AS
• A2
• Conical
• Flask
• Boiling
• Tube
• Titrations
• Test
• Iodine
• sodium
• thiosulphate
• hydrogen
• peroxide

[jo1sh5ua]

OMG how did you build this in minecraft????

[dreams10293]

beautiful!!!

[ahmedbr]

magnificent :P



[sabiq1000]

did it the other day our experiment was even more sudden than this.

[cklanson]

u can do it better by using a more high pixels camera to record it

anyway,thx for sharing

[garaboy2]

lol good one bro

[Vore667]

cant see shit. what did you record this shit with? stone?

[xwxolxfx]

i love it!!!!! thanks!!!!!!

[yasin540]

great example. thanks!