Ammonium iron(II) sulfate concentrate, for 1L standard solution, 0.06 M (NH4)2Fe(SO4)2, for COD determination7783-85-9packaging : Ampoule
Nitrilotriacetic acid, for complexometry, ?99%139-13-9C6H9NO6packaging : Plastic Bottle
Potassium chromate, Puriss. p.a., ACS Reagent, Reag. Ph. Eur., ?99.5%7789-00-6CrK2O4packaging : Plastic Bottle
Potassium hexacyanoferrate(II) trihydrate, Purum, ?99%14459-95-1C6FeK4N6 · 3H2Opackaging : Fiberboard Box
Sodium hypophosphite monohydrate, Puriss. p.a., Reag. Ph. Eur., ?99%10039-56-2H2NaO2P · H2Opackaging : Plastic Bottle
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