I believe the sodium polyacrylate is onlyl found in the GEL forms of clorox - sodium polyacrylate is the same stuff in the water absorbing potting soil and the stuff florists put into the bottoms of vases of flowers now.

I believe it would show up on the clorox msds because you can get an msds for the sodium polyacrylate alone. Sodium hypoclorite and sodium hydroxide are the only active ingredients listed for Clorox Ultra regular bleach (dated in 2001) AND for Clorox regular bleach (dated 2005/I think that's when they added the fact that there WAS some sodium hydroxide albeit a small amount) - only difference is the concentration of the sodium hypoclorite - 6.15% for the regular - 6-7.5% for the ultra.

Would appreciate any clarification above and beyond this. I don't generally buy the store brands because usually I can't find any mention on the container re: concentration and when I did find it it was in the neighborhood of 4.5-5%.

Just sayin'