Harpic

Harpic is the brand name of a toilet cleaner launched in the United Kingdom in 1932 by Reckitt. It is currently available in Africa, the Middle East, South Asia, Asia Pacific, Europe, and the Americas. The toilet cleaning products marketed under the brand name include liquids, tablets, wipes, brush systems, toilet bowl and cistern blocks.
It contains hydrochloric acid (10%) as the active ingredient, along with butyl oleylamine and others in an aqueous solution.
History.
The original toilet cleaner was invented by Harry Pickup (hence the origin of the name Harpic), who was based in Roscoe Street, Scarborough, in North Yorkshire. He also invented Oxypic, which was a sealant used in cast iron heating systems, and patented the Lock & Lift circular manhole covers, which were used initially by the British Military. The company also produced the steel components used on the Mulberry harbours, for the D-day landings.
Advertising.
UK advertisements from the 1930s onwards used the slogan "Cleans Round The Bend" (for this reason the name is occasionally used as slang for "crazy" – George Macdonald Fraser uses this sense in his autobiographical "Quartered Safe Out Here" when talking about an idiosyncratic British officer commanding an irregular unit ). The Harpic "Send for the Experts" (2008) advert featured Tom Reynolds.
Products.
This is the Harpic product range as of 2010:
External links.
Ingredients: Hydrochloric acid, Hydroxyethyl oleylamine, Cetyltrimethylammonium bromide, Ammonium chloride, Methyl salicylate, Butylated hydroxytoluene, Acid Blue 25, Acid red 88, Deionized Water