性质

CAS编号7440-48-4
PubChem CID104730
原子半径125
原子体积6.7
相对原子质量58.933
d
沸点2,927
体积模量
分类过渡金属
晶体结构六方晶系
颜色灰色
共价半径126
密度8.86
电阻率
电子排布[Ar] 3d7 4s2
每层电子排布2, 8, 15, 2
电负性1.88
电子27
9
熔解热16.2
汽化热375
电离能7.881
磁有序化
磁化率
同位素质量58.933
质量数27
熔点1,495
名称
个中子32
原子序数59
氧化态-1, 1, 2, 3, 4, 5
周期4
状态固体
泊松比
个质子27
剪切模量
比热容0.421
符号Co
热导率1
范德华半径
杨氏模量 (弹性模量)
相对丰度
地壳丰度0.003%
宇宙丰度0.0003%
Co 鈷 27 58.933195 9 4 d 27 1495.0 2870.0 [Ar] 3d7 4s2 2 8 15 2 8.9 0.003% Gray Hexagonal 1.9 1.84 {"1":"760.4","2":"1648","3":"3232","4":"4950","5":"7670","6":"9840","7":"12440","8":"15230","9":"17959","10":"26570","11":"29400","12":"32400","13":"36600","14":"39700","15":"42800","16":"49396","17":"52737","18":"134810","19":"145170","20":"154700","21":"167400","22":"178100","23":"189300","24":"204500","25":"214100","26":"920870","27":"966023"} 761 63.7 126 +2,3 1.25 6.7 16.19 373.3 0.421 100.0 0 Solid, Ferromagnetic, Conductor, TransitionMetal, Metal, Stable, Natural KO-bolt Hard, ductile, lustrous bluish-gray metal. Exists in the earth's curst in cocentrations of about 25 ppm. It has remarkable magnetic properties. Used in many hard alloys; for magnets, ceramics and special glasses. Remains hard up to 982°C. Radioactive cobalt-60 is used in cancer therapy. Occurs in compounds with arsenic, oxygen and sulfur as in cobaltine (CoAsS) and linneite (Co3S4). Pure cobalt is obtained as a byproduct of refining nickel, copper and iron. V6ljxByu9ng Cobalt
大约1630年,氯气就被比利时化学家和物理学家詹 巴皮斯托 范赫尔穆特发现

1774年瑞典化学家卡尔威赫姆舍勒首先制备并学习了氯单质

1810年之前,科学界都认为其是氧化的盐酸

但是1811年汉弗莱 戴维总结认为这种新气体是一种新元素 希腊文“发绿的黄” 27 1735 Georg Brandt Sweden From the German word "kobald" meaning "goblin" or evil spirit

氯的同位素

Standard Atomic Weight

58.933194(4)

稳定的同位素

59Co

不稳定的同位素

47Co 48Co 49Co 50Co 51Co 52Co 53Co 54Co 55Co 56Co 57Co 58Co 60Co 61Co 62Co 63Co 64Co 65Co 66Co 67Co 68Co 69Co 70Co 71Co 72Co 73Co 74Co 75Co

单质氯在高浓度情况下是及其危险和有毒的
树蛙皮肤中的氯化合物是一种强有力的镇痛药
氯被用在饮水消毒

它被广泛用在纸张生产,染料,纺织,石油产品,药品,防腐剂,杀虫剂,食品,溶剂,画作,塑料,及其他消费品

氯化物被大范围地用作消毒,木浆漂白,灭菌,和纺织过程