Description Catalogue Number 102047 Replaces CX0220; CX0220-1 Description Calcium hydroxide Product Information CAS number 1305-62-0 EC number 215-137-3 Grade ACS,Reag. Ph Eur Hill Formula H₂CaO₂ Chemical formula Ca(OH)₂ Molar Mass 74.09 g/mol HS Code 2825 90 19 Applications Application Calcium hydroxide for analysis EMSURE® ACS,Reag. Ph Eur. CAS 1305-62-0, chemical formula Ca(OH)₂. Physicochemical Information Density 2.24 g/cm3 (20 °C) Melting Point 550 °C (decomposition) pH value 12.6 (H₂O, 20 °C) (saturated solution) Bulk density 400 kg/m3 Solubility 1.7 g/l Toxicological Information LD 50 oral LD50 Rat 7340 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H315: Causes skin irritation. H318: Causes serious eye damage. H335: May cause respiratory irritation. Precautionary Statement(s) P260: Do not breathe dust. P280: Wear eye protection. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P313: Get medical advice/ attention. RTECS EW2800000 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 37/38-41 Irritating to respiratory system and skin.Risk of serious damage to eyes. S Phrase S 22-26-39 Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection. Storage and Shipping Information Storage Store at +5°C to +30°C. Specifications Assay (acidimetric) ≥ 96.0 % Substances insoluble in hydrochloric acid ≤ 0.03 % Carbonate (as CaCO₃) ≤ 3.0 % Chloride (Cl) ≤ 0.005 % Sulfur compounds (as SO₄) ≤ 0.1 % Heavy metals (as Pb) ≤ 0.003 % Fe (Iron) ≤ 0.05 % K (Potassium) ≤ 0.05 % Mg (Magnesium) ≤ 0.5 % Na (Sodium) ≤ 0.05 % Sr (Strontium) ≤ 0.05 % Conforms ACS, Reag. Ph. Eur.
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