Description Catalogue Number 106637 Product Information CAS number 7757-82-6 EC number 231-820-9 Grade ACS Hill Formula Na₂O₄S Chemical formula Na₂SO₄ Molar Mass 142.04 g/mol HS Code 2833 11 00 Applications Application Sodium sulfate anhydrous, coarse granules for analysis 0.63 - 2.0 mm EMSURE® ACS. CAS No. 7757-82-6, EC Number 231-820-9. Physicochemical Information Density 2.70 g/cm3 (20 °C) Melting Point 888 °C pH value 5.2 - 8.0 (50 g/l, H₂O, 20 °C) Bulk density 1400 - 1600 kg/m3 Solubility 200 g/l Toxicological Information LD 50 oral LD50 Rat > 2000 mg/kg Safety Information according to GHS RTECS WE1650000 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 +5°C to +30°C. Transport Information Declaration (railroad and road) ADR, RID Kein Gefahrgut Declaration (transport by air) IATA-DGR No Dangerous Good Declaration (transport by sea) IMDG-Code No Dangerous Good Specifications Assay (acidimetric) ≥ 99.0 % Identity passes test Insoluble matter ≤ 0.01 % pH-value (5 %; water) 5.2 - 9.2 Chloride (Cl) ≤ 0.001 % Phosphate (PO₄) ≤ 0.001 % Total nitrogen (N) ≤ 0.0005 % Heavy metals (as Pb) ≤ 0.0005 % As (Arsenic) ≤ 0.0001 % Ca (Calcium) ≤ 0.01 % Fe (Iron) ≤ 0.0005 % K (Potassium) ≤ 0.002 % Mg (Magnesium) ≤ 0.001 % Loss on ignition (800 °C) ≤ 0.5 % Particle size (250-2000 µm) ≥ 85 % Corresponds to ACS
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