Description Catalogue Number 106267 Replaces SX0255; SX0255-1; SX0255-3; SX0255-20 Product Information CAS number 6131-90-4 EC number 204-823-8 Grade ACS,ISO,Reag. Ph Eur Hill Formula C₂H₃NaO₂ * 3 H₂O Chemical formula CH₃COONa * 3 H₂O Molar Mass 136.08 g/mol HS Code 2915 29 00 Structure formula Image Applications Application Sodium acetate trihydrate for analysis EMSURE® ACS,ISO,Reag. Ph Eur. CAS No. 6131-90-4, EC Number 204-823-8. Physicochemical Information Density 1.42 g/cm3 (20 °C) Flash point >250 °C (anhydrous substance) Ignition temperature 607 °C Melting Point 58 °C pH value 7.5 - 9.2 (50 g/l, H₂O, 20 °C) Bulk density 900 kg/m3 Solubility 613 g/l Toxicological Information LD 50 oral LD50 Rat 3530 mg/kg LD 50 dermal LD50 Rabbit > 10000 mg/kg Safety Information according to GHS RTECS AJ4580000 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 (perchloric acid titration) 99.0 - 101.0 % Assay (perchloric acid titration, calculated on dried substance) 99.0 - 101.0 % Identity passes test Appearance of solution passes test Insoluble matter ≤ 0.005 % pH-value (5 %; water) 7.5 - 9.0 Chloride (Cl) ≤ 0.0005 % Phosphate (PO₄) ≤ 0.0002 % Sulphate (SO₄) ≤ 0.002 % Total nitrogen (N) ≤ 0.001 % Heavy metals (as Pb) ≤ 0.0005 % Al (Aluminium) ≤ 0.0005 % As (Arsenic) ≤ 0.0002 % Ca (Calcium) ≤ 0.001 % Cu (Copper) ≤ 0.0003 % Fe (Iron) ≤ 0.0005 % K (Potassium) ≤ 0.005 % Mg (Magnesium) ≤ 0.0005 % Pb (Lead) ≤ 0.0005 % Calcium and Magnesium (as Ca) ≤ 0.005 % Substances reducing permanganate passes test Reducing substances ≤ 0.005 % Loss on drying (130 °C) 39.0 - 40.5 % UV absorption (254 nm; 1 mol/l; 1 cm; water) ≤ 0.02 UV absorption (280 nm; 1 mol/l; 1 cm; water) ≤ 0.01 UV absorption (350 nm; 1 mol/l; 1 cm; water) ≤ 0.01 Corresponds to ACS,ISO,Reag. Ph Eur