Sodium chloride, puriss. p.a., ACS reagent, reag. ISO,  reag. Ph. Eur., ≥99.5%, 1kg  grade ACS reagent, reag. ISO, reag. Ph. Eur.  puriss. p.a.  assay ≥99.5%  impurities acidity or alkalinity, complies  ≤0.0001% potassium  hexacyanoferrate(II)  ≤0.0003% heavy metals (as Pb)  ≤0.001% total nitrogen (N)  ≤0.005% free acid (as HCl)  ≤0.005% free alkali (as NaOH)  ≤0.005% in water insoluble matters  ≤0.01% Mg, alkaline earth metals (as Ca)  loss ≤0.2% loss on drying, 130 °C  pH 5.0-8.0 (25 °C, 5%)  8  August 2020 EN-c4f_annexiitechspeciiitechoffer_en.docx  EN-c4f_annexiitechspeciiitechoffer_en.docx Page 35 of 76 