Differences

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--- equipment:chemistry:glassware [2013/06/08 03:54] – mcmaster
+++ equipment:chemistry:glassware [2025/08/04 21:23] (current) – external edit 127.0.0.1
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 See also: [[Plasticware]]
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 I say biased because people have different experiences.  TODO: add pictures and other data to backup my claim
+Highest quality:
+  * Chemglass
-  * Pyrex.  Stay away from older glassware using green lettering as it tends to be less durable than modern glassware
+Good quality:
+  * Pyrex
+    * Note: stay away from older glassware using green lettering as it tends to be less durable than modern glassware
   * Kimax
   * Ace
@@ Line 17: / Line 19: @@
 Moderate quality
-  * Borosil: bubble free but surface had small distortions.  I (JM) have not crossed polarizers to see if this is really an issue.  In any case I imagine this would make it a little more difficult to clean
+  * Borosil: bubble free but surface had small distortions.  I (JM) did not have crossed polarizers at the time to see if this is really an issue.  In any case I imagine this would make it a little more difficult to clean and still probably increase fracture potential even if not strained
 Stay away from these:
   * Bomex: glassware tends to have a lot of defects, in particular a large number of bubbles
-Fluorinated plastics can be useful in a number of situations.  They tend to be very clean, are heat resistant, chemically resistant, and have many other desirable properties.  The most common type is PTFE (Teflon) although PFA gets used for wafer boats.  See the Dupont website for a nice comparison chart.
-====== Reference ======
-Dupont fluoropolymer comparison: http://www2.dupont.com/Teflon_Industrial/en_US/tech_info/techinfo_compare.html