Germanium Metal Powder GeMPo/0403 Physical Symbol Data Atomic number Formats and Packing Additional Information Atomic weight Density (298 K) Melting point Boiling point Heat of fusion Heat of sublimation Vapour pressure (298 K) Specific heat (273-373 K) Crystal structure Ge content Impurity content: Al ≤ 10 Na ≤ 12 Mg ≤ 15 Cu ≤ 15 Fe ≤ 15 Ca ≤ 50 Grain size 100 % ≤ 150 µm Airtight polyethylene bag or bottle packed in an airtight depending on the ordered quantity. CAS registry ID: 7440-56-4 Product aspect: grey powder g/mol 3 1 kg/m ( ) 1 K() K kJ/mol (1) kJ/mol (1) Pa (1) J/kg.K (2) % ppm ppm ppm ppm ppm ppm polyethylene foil Landolt-Bornstein, Numerical data and functional relationships in Science and Technology Group III Vol. 17, 1982, ED. Springer Verlag S.M. Sze, Physics of Semiconductor devices 2nd edition 1981, ED. John Wiley & Sons; MM.F. Morin, J. Maita, Phys.Rev., Vol. 94 N°6, p. 1525, 1954 Umicore Electro-Optic Materials is ISO certified: ISO 9001 – ISO 14001 Umicore Electro-Optic Materials Watertorenstraat 33, B – 2250 Olen, BELGIUM [email protected] www.optics.umicore.com