Code: SLPO01050500
Potassium nitrate and toothpaste samples were made in a nitric acid and ... solution 1 mg/ml in 2-5% HNO3 was purchased from Acros Organics.
per 500ml
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Potassium, standard solution 1000 mg/l K for AA (potassium nitrate in nitric acid 0,5 mol/l)x 500 ml
