Not to belabor the subject...
Ultra was a marketing ploy to increase revenue / regain market share from the generic brands. To achieve the goal: S. Hypochlorite was increased from 5.25% to 6.5% given the ability to increase retail price, reduce dilution (fill - it's expensive to ship water), and reduce container cost (containers/packaging are the most expensive part of the product). In other words they still sell a gallon of product which is now more concentrated where the consumer only has to use 3/4 of a cup instead of 1 cup and it gets sold for a higher price since it's a new and improved product, which equals more revenue. So on, etc, ..........
Strandard Clorox always had S. Hydroxide in it (under 1%).
Ultra may have increased it a bit more to keep it proportionate, but it's still under 1%.
If we pay close attention to other product labeling, we'll see an array of cleaning products with S. Hypochlorite and S. Hydroxide.
Take for example Drano: It contains S. Hypochlorite, S. Hydroxide, Sodium Silicate & Surfactants.
Other cleaning products however, contain Hydrochloric, Phosphoric or other acids. As someone mentioned another time: It is extremely important to understand CHEMISTRY when you're mixing STUFF. Most acids do not give a favorable reaction when mixed with S Hypochlorite. In some cases the mix will emit a very deadly poison called chlorine gas. Also mixing of acids and hypochlorite can produce a by-product called Dioxin (like in the
pulp industry where these mixes can be found ). EPA has big ears for Dioxin producers.
CAN I GET OFF MY SOAP BOX NOW? (My soap-box does not contain Phosphates, Dioxins or Chlorine gas, although it has been known to contain hot air from time to time!!!)
Regards,
P.S.: How about the 9 luckiest miners in PA.? Thank the Lord for their survival and the technology used to retreive them.