make chlorine gas

Chlorine gas can come in handy for many users varying from pyros to high school students.  It is used in making oxidizers, reactants, to reagents, but with all the good comes a bad side.  Chlorine gas is VERY poisonous.  Don't take it lightly at all.  If you inhale even the tiniest amounts that are colorless, it causes great irritation to the throat, lungs, and nose.  Anyways, the making process involves mixing Hydrochloric acid (it can be found at Canadian tire, or the hardware store under the name of Muriatic acid) with calcium hypochlorite (it can be found in Canadian tire and the hardware store under the name of "Sock it", a pool chlorine):
Ca(ClO)2 + 4HCl = CaCl2 + 2H2O + 2Cl2

When the hydrochloric acid and calcium hypochlorite are mixed in a glass jar (not a metal container because the hydrochloric acid reacts with the metal to for other compounds), the cavity in the jar turns a light to dark green color.  That is the chlorine gas, which can be filtered off into another bottle for storage.
By the way, the water (H2O) in the above reaction is mostly liquid, and that means that the chlorine gas will not be contaminated.
Also, you don't always have to use calcium hypochlorite to make the chlorine gas but you can use potassium chlorate, potassium chlorite, and potassium perchlorate.
I take no responsibility for any harm that was created from this blog, and make sure you where the proper safety gear like safety glasses, lab coat, mask, and hat or something.

Calcium hypochlorite ====>

Hydrochloric acid (muriatic acid) ====>

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