iodine from tincture

[gandalf]

Please help me. I tried extract iodine from tincture and it failed. I don't know what i did wrong. I use this method

Iodine from iodine tinctures.

Iodine tincture (7 mL, 2.5%) and distilled water (7 mL) were combined together and mixed with swirling. Concentrated hydrochloric acid (1 mL) was added dropwise with swirling, followed by hydrogen peroxide (7 mL, 6 %20 vols). The mixture was poured into a beaker containing distilled water (50 mL) and left to stand for 20 min. The mixture was subsequently filtered using gravity filtration to reveal the iodine crystals

Can someone helps me?
Is another way to get iodine?
Thanks.

 

[G.Patton]

Is another way to get iodine?

gandalfIodine isn't dissolving in water. You can just pour solution in water and left it in an open (well ventilated) area to let I2 evaporate from your solution.

 

[zaners]

Iodine isn't dissolving in water. You can just pour solution in water and left it in an open (well ventilated) area to let I2 evaporate from your solution.

G.PattonWill you have to evaporate the water Everytime with this method or did he do something wrong?

 

[G.Patton]

Will you have to evaporate the water Everytime with this method or did he do something wrong?

zanersI don't know why this method takes H2O2 and HCl, you can get I2 without them.

 

[woohoo]

KI3 occurs in equilibrium with I2 and KI, its better to oxidize all iodine to improve yields by one third in theory, if you talking about to pour tincture in water.

Please help me. I tried extract iodine from tincture and it failed. I don't know what i did wrong. I use this method

Can someone helps me?
Is another way to get iodine?
Thanks.

gandalfLook for videos on youtube.

 

[G.Patton]

KI3 occurs in equilibrium with I2 and KI, its better to oxidize all iodine to improve yields by one third in theory, if you talking about to pour tincture in water.

woohooI answered the question how to get rid of I2.

 

[w2x3f5]

tincture of iodine is a mixture of potassium iodide and iodine in alcohol or water, the best method to add is to dilute the mixture with water and add some kind of oxidizing agent (sodium percabonate may work, but hydrogen peroxide is better not to use iodine is an excellent catalyst for the decomposition of peroxide). So you excrete additional iodine from potassium iodide + iodine.

 

[spunsolo]

You don't have to add water. Simply add 1 part tincture and 2 parts hydrogen peroxide and a cap full of muriatic acid the iodine crystals will precipitate after a short amount of time