contributor: NRH 8/98

0.5 M EDTA

250 ml final

Na2 -EDTA 46.53g

Water 175.00ml

Stir with Heat

pH to 8.0 with 10N NaOH (~15-20ml)

QS 250 ml (water)

Autoclave

Note: will not fully dissolve until pH is near 8.0!