2020年回收收購 鍺價格 鍺邊角料 鍺粉 廢鍺泥料回收  韶關(guān)金源金屬 鍺廠家回收

鍺（舊譯作鈤 ）是一種化學(xué)元素，它的化學(xué)符號是Ge，原子序數(shù)是32，原子量72.64。在化學(xué)元素周期表中位于第4周期、第IVA族。鍺單質(zhì)是一種灰白色準(zhǔn)金屬，有光澤，質(zhì)硬，屬于碳族，化學(xué)性質(zhì)與同族的錫與硅相近，不溶于水、酸、稀苛性堿溶液，溶于王水、濃酸或酸，具有兩性，故溶于熔融的堿、過氧化堿、堿金屬鹽或酸鹽，在空氣中較穩(wěn)定，在自然界中，鍺共有五種同位素：70，72，73，74，76，在700℃以上與氧作用生成GeO2，在1000℃以上與氫作用，細粉鍺能在氯或溴中燃燒，鍺是優(yōu)良半導(dǎo)體，可作高頻率電流的檢波和交流電的整流用，此外，可用于紅外光材料、精密儀器、催化劑。鍺的化合物可用以制造熒光板和各種折射率高的玻璃

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Germanium is a chemical element, its chemical symbol is Ge, atomic number is 32, atomic weight is 72.64. It is located in the fourth cycle and IVA group in the periodic table of chemical elements. Germanium is a kind of gray white quasi metal, lustrous, hard, belonging to the carbon group. Its chemical properties are similar to those of tin and silicon of the same group. It is insoluble in water, hydrochloric acid, dilute caustic solution, aqua regia, concentrated nitric acid or sulfuric acid. It is amphoteric. Therefore, it is soluble in molten alkali, peroxide alkali, alkali metal salt or acid salt. It is stable in the air. In nature, there are five kinds of germanium isotopes: 70 Germanium is an excellent semiconductor, which can be used for detecting high frequency current and rectifying alternating current. In addition, it can be used as infrared light material, precision instrument and catalyst. Germanium compounds can be used to make fluorescent plates and glasses with high refractive index

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