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首頁 > 供應產品 > 氫化鈉
氫化鈉
單價 面議對比
詢價 暫無
發貨 江蘇蘇州市付款后24小時內
過期 長期有效
更新 2013-10-14 08:46
 
詳細信息


氫化鈉
CAS號:7646-69-7[1]
分子式:NaH
式量:24.00
電子式:Na+[:H]-
摩爾質量23.99 g·mol?1
外觀:白色至淡灰色的細微結晶
密度:相對密度0.92(水=1)
熔點:800℃ / 分解
保存方法:常以25%~50%比例分散在油中
溶解性:不溶于苯、二硫化碳、熔融的氫氧化鈉
與液氨反應:NaH+NH3→NaNH2+H2↑
易與水反應:NaH+H2O→NaOH+H2↑
穩定性:不穩定,因為氫化鈉中鈉呈+1價,氫呈-1價,具有強還原性
危險標記:4(遇濕易燃物品)
主要用途:用作縮合劑、烷化劑及還原劑等

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