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["化学生知识分享-硝酸钾",,"化学式KNO3,天然产物俗名钾硝石、火硝、土硝等,产于农村土房墙脚、地面、岩石表面或石灰岩、盐沼地地、沙漠区域。无色、透明、六角方形柱状晶体或白色晶状粉末。质脆、有玻璃光泽、有刺激性凉咸味、在44℃分解成亚硝酸钾KNO2和氧气。溶于水、稀乙醇和甘油、溶解时吸热、不溶于无水乙醇、在空气中不潮解。水溶液中无溶解度受温度影响较大、40℃时6g水可溶1g、44℃时溶32g、44℃时溶646g。常用来制造黑、导火索、玻璃、火柴、烟火、也用作肥料(兼作钾肥、氮肥)和实验室分析试剂等。可由硝酸钠溶液与氯化钾作用来K取。",,"易制爆化学品名录中也有它。",,"市场上种K的话费没见有用硝酸钾做化肥的!养花草的有用、太贵、常见用硫酸钾、氯化钾!"

2018-11-17View Original

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化学式KNO3,天然产物俗名钾硝石、火硝、土硝等, 产于农村土房墙脚、地面,岩石表面或石灰岩、盐沼地、沙漠区域。无色、透明、六角方形柱状晶体, 或白色晶状粉末。质脆, 有玻璃光泽, 有刺激性凉咸味, 在400℃分解成亚硝酸钾KNO2和氧气。溶于水、稀乙醇和甘油, 溶解时吸热, 不溶于无水乙醇,在空气中不潮解。水溶液中性,溶解度受温度影响较大,0℃时100g水可溶13g,20℃时溶32g,100℃时溶246g。常用来制造黑**、导火索、玻璃、火柴、烟火,也用作肥料 (兼作钾肥、氮肥) 和实验室分析试剂等。可由硝酸钠溶液与氯化钾作用来制取。
Reply #22018-11-17
易制爆化学品名录中也有它。
Reply #32018-11-22
市场上种地的话费没见有用硝酸钾做化肥的!养花草的有用,太贵,常见用硫酸钾、氯化钾!

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