One thing to watch for in a COA for Glycerin is a specific test for DEG.
I think the requirement has been placed in the USP monograph.
Here are a few I found on the web that have both the specification and the test results, including a quantification for DEG.
I'm not implying any of these are any good.
"GLYCERINE VEGETABLE NATURAL SOURCE - PALM DERIVED - Certificate of Analysis Sheet ( COAS ) "
http://www.kicgroup.com/qdocs/29615coa.pdf
http://glycerinbulk.com/static/coa-glycerine.pdf
Has anyone heard about
Vi-Jon, Inc in St. Louis, Mo.?
They sell Glycerin. any comments?
Looks like Vi-Jon and Cumberland Swan Holdings joined when they got a bail out
from Berkshire Partners, one of those 'Private Equity' firms.
Swan Glycerin is a trade mark of Vi-Jon. It is manufactured, or refined, or maybe just stored and bottled at either the St. Louis, Mo. or Smyrna, Tn plant.
You can find it in some stores like Target, CVS, Walmart, and maybe some e-juice vendors.
They have an MSDS posted on line, but I could not find a COA or reference to a Kosher certification. It is good stuff because they also make chemical formulations for other major consumer product companies.
This isn't really all that 'Off-Topic' as PG and VG are in our Nic bases.