Oxidizes Germany\nWednesday, 07 February 2017\n\n\n\nGeo2, Germany, is a white powder. It can be obtained by oxidation of Germany with air oxygen at a temperature above 700 degrees or with concentrated nitric acid, hydrolysis of chloride of Germany, calibration of oxygen disulphide jet of Germany and other means. Germany has a tetragonal crystalline grate of rutile type with parameters: a = 4.390 a, c = 2.859 a. in addition, the metastable (so-called water-soluble) form of dioxide of Germany is known, crystallizing in the hexagonal grate of a-quartz type with parameters: a = 4.98 a, c = 5.64 a.the specific weight of tetragonal modification of geo2 is 6.239, hexagonal form - 4.703. Germany's dioxide, unlike silicon dioxide, is markedly soluble in water. Geo2 has a water solubility of 0.4% at 20 degrees. At 100 degrees about 0.95%. The solution of German dioxide in water has a mild acid reaction. Melting point geo2 1115 degrees. Above 1250 degrees, the dioxide vaporizes markedly. The heat of formation geo2 is 128 kcal/mol. Germany recovers hydrogen and carbon at a temperature of 600-800 degrees to metal. Alkalis from German salts are deposited by amorphous white osadks of hydrated German dioxide containing water variables. The composition of hydrated precipitation can only be expressed by a general geo2 * nh2o formula. Dioxide is dissolved in alkaline solutions with the formation of salts not separated in pure form of hermanic acid - hermanates. Okis Germany geo is a dark-grey powder, not soluble in water, but easily soluble in acids with the formation of salts of two-track Germany. Above 700 degrees oxidized. From solutions containing ge2 + ions, alkali sediments ge (oh)2 hydroxide in yellow. Hydroxide of two-valent Germany shows amphoteric properties when dissolved in alkaline form germanites (e.g. Nahgeo2), which in the crystalline state are not separated solutions are strong reagents.\n\n\n\n\n\nFacebookclassmate mirtwitterlivejournalproperties germania extraction of thallium from dust from kiln finish extraction of thallium and cadmium from dust obtained by melting lead in mine furnaces extraction of thallium from waste zinc production
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