At 11:41 PM 03/10/2000 -0600, you wrote: >>How can I see the difference between plastic and celluloid? > >Easiest way is by burning samples. The celluloid fireball will try to eat you. < I don't think it is necessary to establish the type of non-ivory keytop material unless there is a fire concern :-) >KeyTOPS, specifically naturals. There are, or have been, wood and bone >keytops as well. < A microscope could tell you the surface architecture and then you can determine if it is ivory or bone. Not that it matters much except that it is non-plastic. >>What is celluloid made out of? >>Matthew > >Cellulose nitrate, or gun cotton. It can be made by dipping cotton in (I >think) a mixture of nitric and sulfuric acid. Or is it just nitric? > >BTW, how about disabling your ".vcf" attachments when you post to the list. >I've currently got about 19 of them piled up on my drive and definitely >know who you are by now. < I second that Regards, Jon Page, piano technician Harwich Port, Cape Cod, Mass. mailto:jonpage@mediaone.net ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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