acids
On Mon, 8 Jan 2007, Jack Fulton wrote: The 18% hydrochloric acid mentioned below is often title Muriatic AcidLong ago I bought a gallon of "muriatic acid" at a paint supply store for $6, and was told it was 33%. (They also sell muriatic in hardware stores, or did.) My lab grade 37% HCL was about $25 per pint. The two performed almost identically, BUT -- a warning to those buying a gallon of muriatic: In due course the plastic cap corroded (unnoticed by me) & all metal -- including my stainless steel sink and the light chain -- in the vicinity seriously corroded. And then the plastic jug started to go. Transferring to glass was a tricky operation, as is getting rid of the stuff down your drain. If you don't need heaps (as for clearing baths) -- lab grade in glass is easier. I still have some in the old wet darkroom... as well as phosphoric, glacial acetic, sulfuric, and god knows what else. (Maybe some day they'll find a way to fix your computer with an acid bath.) Judy ========================================================================= Read My T-Shirt for President: A True History of the Political Front _ and Back >www.frontandbackpress.com< ........................................................................ A reader writes: "I'd recommend it for a Pulitzer Prize, except I lack the credentials."
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