| 释义 |
po·tas·si·um AHD[pə-tăsʹē-əm] D.J.[pəˈtæsiːəm]K.K.[pəˈtæsiəm]n.Symbol K （名词）符号 K - A soft, silver-white, highly or explosively reactive metallic element that occurs in nature only in compounds. It is obtained by electrolysis of its common hydroxide and found in, or converted to, a wide variety of salts used especially in fertilizers and soaps. Atomic number 19; atomic weight 39.102; melting point 63.65°C; boiling point 774°C; specific gravity 0.862; valence 1. See table at element 钾：只以化合物形式存在的柔软的，银白色的，极为活泼的金属元素。这种元素通过将其常见的氢氧化物进行电解而得到，存在于或转化成各种各样的盐，这些盐尤用于制造化肥及肥皂。原子序数为19；原子量39.102；熔点63.65°C；沸点774°C；比重为0.862；原子价为1 参见 element
- From potash [from which it was first obtained] 源自 potash [钾最初得于（钾盐）]
potasʹsic adj.（形容词） |