Sciencemadness Discussion Board

chlorine water

FGP - 12-9-2004 at 04:24

Does somebody know the available chlorine content in a saturated chlorine water solution?
Would there be any change in specific gravity due to the chlorine?
FGP. UK

mick - 12-9-2004 at 06:56

Chlorine gas is soluble in water, 1 volume of water will disolve about 2.4 volumes of the gas at 10oC to give you chlorine water. It will slowly react with the water to give hydrochloric and hypochlorous acid. The hypochlorous acid will slowly decompose to hydrochloric acid and oxygen (faster in sun light).
Do you mean hypochlorite solution
mick

Just tried to work it out and I think it is about 0.01molar solution of chlorine

Sorry about that it is 0.1 molar
mick

[Edited on 12-9-2004 by mick]

[Edited on 12-9-2004 by mick]

FGP - 13-9-2004 at 03:34

Quote:
Originally posted by mick
Chlorine gas is soluble in water, 1 volume of water will disolve about 2.4 volumes of the gas at 10oC to give you chlorine water. It will slowly react with the water to give hydrochloric and hypochlorous acid. The hypochlorous acid will slowly decompose to hydrochloric acid and oxygen (faster in sun light).
Do you mean hypochlorite solution
mick

Just tried to work it out and I think it is about 0.01molar solution of chlorine

Sorry about that it is 0.1 molar
mick

[Edited on 12-9-2004 by mick]

[Edited on 12-9-2004 by mick]


Thanks Mick, that's fine. Ignoring the formation of acids, would the specific gravity increase? What I'm asking is: could SG be used as a means of measuring chlorine strength in freshly formed chlorine water?
Looking forward to your comments.
Fred.