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Kathy H
Hi. I found PF while searching Sodium Percarbonate mixing ratios (household chemistry. ha.). The discussion, although not 'rocket science', was interesting to me. My background is highly 'checkered', I suppose, and not particularly relevant, so I wiil just say I have a curious mind and have a lot of respect for those that are knowledgeable, intelligent, and inquisitive. I am in early retirement but never want to quit learning. Thank you Greg Bernhardt for your welcome to all for letting me join you.