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Hampene 220 info please!

I am trying to track down an MSDS for Hampene 220. I need to know proper disposal techniques. I have a barrel of Hampene 220 that has gone hard. (solid!) Is there a shelf life for this product? If anyone knows, I would appreciate a response.

Sandra V.
- Ontario, Canada
2003

Same as Versene 220 which is tetrahydrate of tetrasodium salt of EDTA, 99%. Hydrated salts can form solid masses with time. It is a simple matter to test the chelating value by titrating against standard calcium solutions using eriochrome black t ⇦ this on eBay or Amazon [affil links] indicator. Shelf life is likely to be several years.

James Chunn
- Theodore, Alabama
2003

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