1、钾硝石又称印度硝石、火硝。
(资料图片)
2、产于干燥地区的土壤、岩石表面或洞穴中,用作农业上的钾肥和氮肥,主治五脏积热,胃胀闭,涤去蓄结饮食,推陈致新,除邪气。
3、入药部位:为矿物硝石经加工提炼而成,主含硝酸钾。
4、性味:味苦、辛,寒,无毒。
5、归经:膀胱、脾经。
6、炮制方法:拣去杂质,以文火炒至无水分为度,取出,冷后装缸内。
7、用法用量:6-15克,不入煎剂,以药汁或开水溶化后服。
8、外用适量,包敷患处。
9、钾硝石Nitrokalite晶体结构属斜方晶系,常呈针状或毛发状等集合体。
10、颜色为无色、白色或灰白色等,条痕为白色,具玻璃状或绢丝状光泽,微透明,断口贝壳状或参差状,硬度2,比重2.1-2.2,性脆易碎,易溶于水,味苦而凉,易燃,火焰紫色。
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