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--- chemical:cuso4 [2013/06/07 05:04] – mcmaster
+++ chemical:cuso4 [2013/10/20 14:59] (current) – external edit 127.0.0.1
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 This can be found in gardening supplies.  It is unknown if this is pure enough and is not recommended.  I (JM) got some off of a seller on eBay that seems reasonably pure.
-====== Purity ======
-Some problems during cleaning found traced to volatile residue.  Question: what does it take to get acetone with very low volatile residue for cleaning?  Alternatively, can I get another volatile compound, say IPA, that leaves less volatile residue?
-^ Source ^ Purity ^ CoA ^ $/L ^ Notes ^
-^ [[http://www.sigmaaldrich.com/catalog/product/sial/439126?lang=en&region=US|Sigma Aldrich:  CHROMASOLV®, for HPLC, ≥99.9%]] ^ >= 99.9 ^ N ^ $36.25 (4L) ^