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Re: What are your best and worse TV ads?
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Originally Posted by heero_yuy
Stupid head and shoulders advert for shampoo claiming "Up to 100% flake free" Up to includes zero so not effective at all. 
---------- Post added at 19:08 ---------- Previous post was at 18:29 ----------
Another stupid claim from Harpic lime scale remover that it is ten times more effective than bleach in removing limescale. Since bleach is not a limescale remover the claim is totally nonsense.
Molar Hydrochloric acid is the definitive limescale remover.  |
Pffffttt - schoolboy chemistry; if you want to remove every trace of limescale (and anything else within a couple of hundred metres), use FOOF* (Dioxygen difluoride)...
https://corante.com/things-i-wont-wo...en-difluoride/
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Here’s how the experimental prep of today’s fragrant breath of spring starts:
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The heater was warmed to approximately 700C. The heater block glowed a dull red color, observable with room lights turned off. The ballast tank was filled to 300 torr with oxygen, and fluorine was added until the total pressure was 901 torr. .
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And yes, what happens next is just what you think happens: you run a mixture of oxygen and fluorine through a 700-degree-heating block. “Oh, no you don’t,” is the common reaction of most chemists to that proposal, “. . .not unless I’m at least a mile away, two miles if I’m downwind.” This, folks, is the bracingly direct route to preparing dioxygen difluoride, often referred to in the literature by its evocative formula of FOOF.
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AKA " Satan's Kimchi"
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