Diethyl ether ROTIPURAN® min. 99,5 %, p.a. is a high-purity analytical solvent with CAS number 60-29-7 and empirical formula C₄H₁₀O. The molar mass is 74,12 g/mol, density 0,71 g/cm³, boiling point 34,58 to 34,59 °C and flash point −40 °C. Stabilised with BHT, this grade supports demanding laboratory work where consistent solvent quality is essential. a. quality. Physical data and the ROTIPURAN® specification from manufacturer Carl ROTH help laboratories select the correct solvent for extraction, sample preparation and related procedures. The clear liquid profile and defined purity make it a practical choice for routine and specialised analytical applications in research and quality-control environments. This article is part of Analytical grade solvents (p.a.), in Solvents. Key features Assay (GC): ≥99,5 % Density (20 °C): 0,714-0,716 Water (KF): ≤0,1 % Säuren (CH3COOH): ≤0,01 % Peroxides (as H2O2): not detectable Aluminium (Al): ≤0,00005 % Barium (Ba): ≤0,00001 % Lead (Pb): ≤0,000001 % Cadmium (Cd): ≤0,000005 % Calcium (Ca): ≤0,00005 % CAS number: 60-29-7 Pack sizes: 1 l, 190 l, 5 l, 25 l, 2.5 l, 10 l EG nr.: 200-467-2 Empirical formula: C₄H₁₀O Molar mass: 74,12 g/mol Technical Information Sheet: Safety Data Sheet: