Differences

This shows you the differences between two versions of the page.

--- chemical:cuso4 [2013/06/07 05:14] – mcmaster
+++ chemical:cuso4 [2013/10/20 14:59] (current) – external edit 127.0.0.1
@@ Line 4: / Line 4: @@
 ====== Sources ======
 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 >= ^ Volatile residue <= ^ CoA ^ $/L ^ Notes ^
-| [[http://www.sigmaaldrich.com/catalog/product/sial/439126?lang=en&region=US|Sigma Aldrich:  CHROMASOLV®, for HPLC, ≥99.9%]] | 99.9 |  0.0002%  | N | 36.25 (4L) |
-| [[https://us.vwr.com/store/catalog/product.jsp?product_id=7486215|VWR: Acetone, Semiconductor Grade, 99.5%]] | 99.5 |  5 ppm  | N | 17.93 (4L) |
-| [[http://www.polysciences.com/Catalog/Department/Product/98/categoryid--52/productid--566/|Polysciences: Acetone, Glass Distilled, 99.7%]] | 99.7 |  N/A | N |  |
-| [[http://www.polysciences.com/Catalog/Department/Product/98/categoryid--52/productid--146/|Polysciences: Acetone, 99.5% - EM grade]] | 99.5 |  N/A | N |  |
-| [[https://us.vwr.com/store/catalog/product.jsp?product_id=4539168|OmniSolv® Acetone]] | 99.5 | 1 ppm | N |  |