Bleach vs. liquid chlorine?

[Red Neckerson]

If you do not leave some excess lye (sodium hydroxide) in making bleach, then the pH will be lower and the bleach will degrade more quickly. So a small amount is left in. In high-quality 12.5% chlorinating liquid, there's around 0.25% lye and the pH is around 12.5 (with no excess lye, the pH would be around 10.6).

Now we know why you're a chem geek! Thanks for the info.

 

[suziequsie2945]

I just noticed that scented bleach contains half the sodium hypochlorite as the unscented or regular bleach, containing only 2.5% while unscented contains 6 or 8.5%. That may be an indicator when determining if it's scented or not as well.