Mike Monett wrote: > url: http://escribe.com/health/thesilverlist/m61496.html > Re: CS> Making Ions Visible > From: Marshall Dudley > Date: Fri, 25 Jul 2003 07:55:16 > > > Cool. I think I will try the same experiment with Phenolphthalein. > > > Another good choice might be hydrangia, they are pink in acid and > > blue in bases. > > > Marshall > > Marshall, Please Please let us know your results! > > Where does hydrangia grow? I can only recognize a few of the plants > in grocery stores. So I wouldn't know how to identify it. > > Does it look like this? > > http://www.stratsplace.com/gardendiary/oakleafhyd.html
Not that I have ever seen. See http://www.gardeningtips.org/October/photos/7.shtml for a red one. The white ones are often called snowballs. But you have to use the pink or blue ones for ph measurement. They are blue when acid and pink when basic opposite of litmus paper. http://www.liddlewonder.co.nz/PlantGallery/Hydrangea/ has some beatiful pictures of different colors and closeups as well. http://www.searle.com.au/hydrangea.htm http://www.ag.uiuc.edu/~robsond/solutions/horticulture/docs/hydrange.html One other thing you can try. At the kroger by us they often sell bundles of flowers. There is one flower that looks like a pink or blue daisy. If you get those then dry them, and then soak them in water the color will come out. I have used them as a ph test also when I ran out of litmus paper. The pigment is anthocyanin http://www.csun.edu/~vceed002/BFI/lessons/pH_scale/pH_scale.html has some very good information on this and which plants have it. Marshall > > > I think I've seen it here in Ontario. > > Best Regards, > > Mike Monett > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > Instructions for unsubscribing may be found at: http://silverlist.org > > To post, address your message to: [email protected] > > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > > List maintainer: Mike Devour <[email protected]>
