Germanium tetrachloride 
 CAS No. 10038-98-9 Chinese name English name of germanium tetrachloride, Germanium tetrachloride of germanium chloride formula GeCl4 alias appearance and molecular weight of 214.40 colorless liquid vapor pressure 10.13kPa (20 ℃) ??Melting point -49.5 ℃ Boiling point: 83.1 ℃ Solubility insoluble in concentrated hydrochloric acid, dissolved in dilute hydrochloric acid, benzene, most organic solvents density relative density (water = 1) 1.88 Stability risk Marker 20 (corrosive acid) doped optical fiber as the main use of agents with