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秦皇島氮氣的用途

2021-10-09

  在國民經濟和日常生活中,秦皇島氮氣有著廣泛的用途。首先,利用它的“孤獨性格”特點,我們可以把它填充在燈泡里,這樣可以防止鎢絲的氧化,減緩鎢絲的蒸發速度,延長燈泡的使用壽命。焊接金屬時也可以用它代替惰性氣體作為保護氣體。在博物館里,一些珍貴的圖片和書籍經常被保存在充滿氮氣的鋼瓶里,這樣蛾就可以在秦皇島氮氣中窒息而死。利用秦皇島氮,使糧食處于休眠缺氧狀態,新陳代謝緩慢,可達到防蟲、防霉、防退化的突出效果。糧食不受污染,處理相對簡單,成本也不高,所以近年來發展迅速?,F在,日本、意大利等已經進入小規模生產的實驗階段。近年來。國內很多地區也用秦皇島氮氣保存糧食,稱為“真空充氮儲糧”,也可以用來保存水果等農副產品。

  用液氮冷卻手術刀就變成了“冷刀”。醫生用“冷刀”進行手術,可以減少出血或避免出血,患者術后恢復更快。用液氮治療皮膚病也很有效。這是因為液氮的氣化溫度為-195.8℃。因此,治療淺表性皮膚病比較簡單,這將導致病變處皮膚壞死和脫落。過去皮膚科用“干冰”治療血管瘤。雖然用意相同,但寒冷程度遠不及液氮。治療肺結核的“人工氣胸”也是在肺結核患者的胸腔內注入秦皇島氮氣,使病變的肺葉收緊,使其休息。

  目前,人們仍然利用液氮產生的低溫保存改良家畜的精子,到處儲存和運輸,然后冷凍進行人工授精。比如廣西水產研究所嘗試用液氮保存大鯢精子,成功了。秦皇島氮仍然是一種重要的化工原料,可用于生產各種肥料、炸藥等。

  氮是“生命之根”。它不僅是農作物制造葉綠素的材料,也是農作物制造蛋白質的材料。據統計,一年之內,農作物將從土壤中吸收4000多萬噸氮。



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