Description Catalogue Number 102121 Replaces CX0255; CX0255-1; CX0255-20 Description Calcium nitrate tetrahydrate Product Information CAS number 13477-34-4 EC number 233-332-1 Grade ACS Hill Formula CaN₂O₆ * 4 H₂O Chemical formula Ca(NO₃)₂ * 4 H₂O Molar Mass 236.15 g/mol HS Code 2834 29 80 Applications Application Calcium nitrate tetrahydrate for analysis EMSURE® ACS. CAS 13477-34-4, chemical formula Ca(NO₃)₂ * 4 H₂O. Physicochemical Information Density 1.82 g/cm3 (20 °C) Melting Point 45 °C pH value 5.0 - 7.0 (50 g/l, H₂O, 25 °C) Bulk density 1000 kg/m3 Solubility 2710 g/l Toxicological Information LD 50 oral LD50 Rat 3900 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H302: Harmful if swallowed. H318: Causes serious eye damage. Precautionary Statement(s) P280: Wear eye 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. P313: Get medical advice/ attention. RTECS EW3000000 Storage class 5.1B Oxidizing hazardous materials WGK WGK 1 slightly water endangering Disposal 22 Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I. Safety Information Hazard Symbols Irritant Harmful Categories of danger oxidizing, irritant R Phrase R 22-41 Harmful if swallowed.Risk of serious damage to eyes. S Phrase S 13-26-36/39-46 Keep away from food, drink and animal feedingstuffs.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing and eye/face protection.If swallowed, seek medical advice immediately and show this container or label. Storage and Shipping Information Storage Store at +15°C to +25°C. Transport Information Declaration (railroad and road) ADR, RID UN 1454 , 5.1, III Declaration (transport by air) IATA-DGR UN 1454 , 5.1, III Declaration (transport by sea) IMDG-Code UN 1454 , 5.1, III Specifications Assay (complexometric) 99.0 - 102.0 % Insoluble matter ≤ 0.005 % pH-value (5 %; water; 25 °C) 5.0 - 7.0 Chloride (Cl) ≤ 0.005 % Nitrite (NO₂) ≤ 0.001 % Sulphate (SO₄) ≤ 0.002 % Heavy metals (as Pb) ≤ 0.0005 % Ba (Barium) ≤ 0.005 % Cu (Copper) ≤ 0.0002 % Fe (Iron) ≤ 0.0005 % K (Potassium) ≤ 0.005 % Mg (Magnesium) ≤ 0.01 % Na (Sodium) ≤ 0.01 % Sr (Strontium) ≤ 0.01 % Corresponds to ACS