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Re: Sulphuric acid (was:Re: Peat filtration.)
How about using Kent Ph minus. It comes as a powder which
when added water produces (dilute?) sulphuric acid. I've
bought some recently but have not fully tested it yet. A pH
test shows about pH 4 can be obtained, don't know if it will
be stable though.
Ken.
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Ken Laidlaw
UK Astronomy Technology Centre
Royal Observatory, Edinburgh
Web: http://www.roe.ac.uk
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