30 volume hydrogen peroxide is not the same as 30%. 30 volume (or V30) is 9%. Google "hydrogen peroxide volume to percent".
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There are a couple of sellers on eBay selling undiluted 35% hydrogen peroxide. It is not something you want to mess with. I bought some a couple of years ago for another purpose - dissolving tungsten rods. it took a couple of weeks but they completely dissolved.
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Craig
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On Sat, Mar 23, 2019 at 07:19 PM, Dave wrote:
Mark,
? Yes, I am aware of the issues although I haven't made any solution yet. I was more worried about my shop equipment getting rusted. And my lungs too. But I decided I would do my etching outside and just need to properly store the etchant until I need it again. I see other people use the sponge method too so I may have to give it a try but I have plans to build a tank. And like you, I am not planning on doing a lot of boards but maybe a bunch at a time. Time will tell. My initial research showed a lot of interest in the Volume 30 stuff so I had to get some. :)
Thanks
