دی پتاسیم هیدروژن فسفات 137010 مرک

دی پتاسیم هیدروژن فسفات 137010 مرک di-Potassium hydrogen phosphate 137010 merck Product Information CAS number 7758-11-4 EC number 231-834-5 Grade Ph Eur,BP,USP Hill Formula HK₂O₄P Chemical formula K₂HPO₄ Molar Mass 174.18g/mol HS Code 2835 24 00 Physicochemical Information Density 2.44g/cm3 (20C) pH value 9 (10g/l, H₂O, 20C) Bulk density 700-1000kg/m3 Solubility 1600g/l Toxicological Information LD 50 oral LD50 Rat 8000 mg/kg Safety Information according to GHS RTECS TC5580000 Storage class 10 - 13 Other liquids and solids WGK WGK 1 slightly water endangering Disposal 14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). Storage and Shipping Information Storage Store at +5C to +30C. Specifications Assay (alkalimetric, calculated on dried substance) 98.0 - 100.5% Identity passes test Appearance of solution passes test Insoluble substances 0.2% pH-value (5 %; water) 8.5 - 9.6 Carbonate passes test Chloride (Cl) 0.02% Fluoride (F) 0.001% Sulphate (SO₄) 0.1% Heavy metals (as Pb) 0.0010% Al (Aluminium) 0.0005% As (Arsenic) 0.0002% Fe (Iron) 0.0010% Na (Sodium) 1.5% Na (sodium) passes test Potassium dihydrogen phosphate 2.5% Potassium dihydrogen phosphate and tri- Potassium phosphate passes test Residual solvents (ICH Q3C) excluded by manufacturing process Reducing substances passes test Loss on drying (130 C) 1.0% Endotoxins 2.5I.U./g Total aerobic microbial count 100CFU/g Total yeast and mould count 100CFU/g DNases (Exo- and endonucleases) (not detectable) passes test RNases (not detectable) passes test Proteases (not detectable) passes test Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). Corresponds to Ph Eur,BP,USP