[yoyoils]

Since I've run out of my 32% HCl, and I want to make some Chlorine gas in a new experiment, but only have the following reagents that I think I could use:

Concentrated 98% H2SO4 & house hold Clorox Bleach.
MSDS:
http://www.thecloroxcompany.com/downloads/msds/bleach/cloroxregularbleach0809_.pdf

If someone would help me, i just want to be sure im not going to make ANYTHING gaseous but chlorine from mixing sulfuric acid with bleach.

I've read some places that u make H2SO4 + NaOCl -> Na2SO4 + HCl + SO2.. is this true? here's the source:
http://wiki.answers.com/Q/What_if_Sulfuric_acid_and_sodium_hypochlorite_are_mixed

^ It seems like they're just guessing and warning.

Because on the other hand, here's a source that says the opposite:
http://www.ehow.com/about_6521382_sulfuric-acid-chlorine-bleach-reaction.html

Basically says what I want to know, is that sulfuric acid + bleach will produce chlorine gas!!! please someone who knows help me big time

[yoyoils]

And plus this guy says: http://www.sciencemadness.org/talk/viewthread.php?tid=6590#pid75319 that you can make chlorine(I) oxide, which i definitely need only chlorine gas. please someone shine some light on here

[Arkcon]

If you need a small amount of gaseous chlorine, and you have conc. sulfuric, you can use household NaCl, which you should be able to get easily.

[yoyoils]

How much chlorine would that produce? I did it earlier to try and make some HCl acid, but the result was so diluted it was a waste of time

I always thought that would just make hydrogen chloride.

I've always made pretty good chlorine gas using 32%HCl + Household Bleach, but do you know if a certain prepared concentration of H2SO4 (w/w?%) may react properly with the bleach to form chlorine gas and nothing else crazy?

[Arkcon]

Whoops.  No. You're right, that just gives HCl.  I got confused as to what you were trying to make, even as I was typing it.

[yoyoils]

Why are wiki.answers and ehow both saying different things about mixing H2SO4 with bleach lol and are either of them right?

[Borek]

Why are wiki.answers and ehow both saying different things

Why are you surprised by the fact two random sources answering a random question give random answers?

[Arkcon]

As Borek: has alluded to, the chemistry of household bleach is complex.   Basically, it all depends on the final concentration of the acid and the hypochlorite, whether you will get mostly Cl₂ and a small amount of other gaseous breakdown products, or other results.  I don't recall, off hand, the easy method for laboratory Cl₂ generation (does wikipedia give a simple method like that, sometimes it does.)  Fact is, Yahoo answers, eHow, and wiki.answers ask and answer questions out of context, someone answering there may just be posting a random factoid, or may have a different application that won't be affected by impurities.  Or they have an efficient scrubber, again, for their application.

[ajkoer]

Note per the ionic equations:

ClO(-) + Cl(-) + 2H(+) <=> Cl2 + H2O

there are many paths to generating chlorine. For example, for ClO(-), one can use NaOCl, Ca(OCl)2, HOCl,.

For the chloride, Cl(-), use HCl or NaCl. 

For H(+), usually a strong acid or acid salt like NaHSO4. Note, in the case of a too weak acid, only Hypochlorous acid is formed:

NaOCl + H2CO3 --> NaHCO3 + HOCl

However, there are interesting instances to have an acidic 'activity level' equivalent to a strong acid without, of course, the strong acid. For example, employing a highly concentrated ionic slurry (or acid salt hydrate) may work. Examples include MgSO4 (outlined in several patents to produce dibasic Magnesium hypochlorite, where Cl2 is formed as a byproduct) and even FeSO4 (discussed in an old sciencemadness thread where a syrup-like FeSO4/NaOCl mixture is reported to work best).

So understanding the mechanics of the reaction, one can generate Cl2 in a convenient manner.