Description Catalogue Number 106384 Synonyms Soda, Sodium Carbonate decahydrate Product Information CAS number 6132-02-1 EC index number 011-005-00-2 EC number 207-838-8 Grade Ph Eur,BP,E 500 Hill Formula CNa₂O₃ * 10 H₂O Chemical formula Na₂CO₃ * 10 H₂O Molar Mass 286.14 g/mol HS Code 2836 20 00 Structure formula Image Physicochemical Information Density 1.44 g/cm3 (20 °C) Melting Point 33 °C Elimination of water of crystallisation pH value 11 - 12 (50 g/l, H₂O, 25 °C) Bulk density 700 - 900 kg/m3 Solubility 210 g/l Toxicological Information LD 50 oral LD50 Rat 4090 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H319: Causes serious eye irritation. Precautionary Statement(s) P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. 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). Safety Information Hazard Symbols Irritant Categories of danger irritant R Phrase R 36 Irritating to eyes. S Phrase S 22-26 Do 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 +15°C to +25°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, Na₂CO₃) 36.7 - 40.0 % Assay (acidimetric; calculated on dried substance) ≥ 99.0 % Identity passes test Appearance of solution passes test Alkali hydroxides and Alkali hydrogen carbonates passes test Chloride (Cl) ≤ 0.0050 % Sulphate (SO₄) ≤ 0.0100 % Heavy metals (as Pb) ≤ 0.0020 % As (Arsenic) ≤ 0.0002 % Cu (Copper) ≤ 0.0025 % Fe (Iron) ≤ 0.0020 % Hg (Mercury) ≤ 0.0001 % Pb (Lead) ≤ 0.0002 % Zn (Zinc) ≤ 0.0025 % Residual solvents (ICH Q3C) excluded by manufacturing process Loss on drying (300 °C) 55.0 - 65.0 % 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,E 500 Conforms to the purity criteria on food additives according to the current European Commission Regulation.
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