Merck 104928 Potassium Carbonate For Analysis Emsure® Acs,Iso,Reag. Ph Eur 1 Kg

MERCK 104928 MERCK 104928 Potassium carbonate for analysis EMSURE® ACS,ISO,Reag. Ph Eur 1 Kg Description Catalogue Number 104928 Replaces PX1390. PX1390-1. PX1390-20 Synonyms potash Product Information CAS number 584-08-7 EC number 209-529-3 Grade ACS,ISO,Reag. Ph Eur Hill Formula CK?O? Chemical formula K?CO? Molar Mass 138.21 g/mol HS Code 2836 40 00 Structure formula Image Physicochemical Information Density 2.43 g/cm3 (20 °C) Melting Point 891 °C pH value 11.5 - 12.5 (50 g/l, H?O, 20 °C) Bulk density 750 kg/m3 Solubility 1120 g/l Toxicological Information LD 50 oral LD50 Rat > 2000 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H315: Causes skin irritation.H319: Causes serious eye irritation.H335: May cause respiratory irritation. Precautionary Statement(s) P302 + P352: IF ON SKIN: Wash with plenty of soap and water.P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Signal Word Warning RTECS TS7750000 Storage class 10 - 13 Other liquids and solids WGK WGK 1 slightly water endangering Disposal 14Inorganic 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). Safety Information Hazard Symbols Irritant Categories of danger irritant R Phrase R 36/37/38Irritating to eyes, respiratory system and skin. S Phrase S 22-26Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Storage and Shipping Information Storage Store at +5 °C to +30 °C. Specifications Assay (acidimetric calculated on dried substance) ? 99.0 % Assay (acidimetric) ? 99.0 % Insoluble matter ? 0.005 % Chloride (Cl) ? 0.003 % Phosphate (PO?) ? 0.001 % Silicate (SiO?) ? 0.005 % Total sulfur (as sulfate) ? 0.003 % Total nitrogen (N) ? 0.001 % Heavy metals (ACS) ? 0.0005 % Ca (Calcium) ? 0.002 % Cu (Copper) ? 0.0005 % Fe (Iron) ? 0.0005 % Mg (Magnesium) ? 0.001 % Na (Sodium) ? 0.02 % Pb (Lead) ? 0.0005 % Substances precipitated by ammonia ? 0.01 % Loss on drying (300?°C) ? 1.0 % Corresponds to ACS, ISO, Reag. Ph Eur