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  • Product Name:   Chloroauric acid
  • Synonyms:   
  • CAS No.:   16903-35-8
  • Molecular Formula:   AuCl4H
  • Molecular Weight :   339.79
  • Specification :   98%
  • Place of Origin:   China
  • Appearance :   
  • Document :   Download

Description of Chloroauric acid
四氯金酸 性质
熔点  30°C
密度  3.9 g/mL at 25 °C
储存条件  2-8°C
溶解度  H2O: soluble
形态 Liquid
颜色 yellow
水溶解性  Miscible with water, alcohol, ester, ether and ketone.
敏感性  Light Sensitive
Merck  13,4537
稳定性 Stable. Hygroscopic. Light sensitive. Incompatible with strong bases, sulfides, cyanides, carbonates.
CAS 数据库 16903-35-8(CAS DataBase Reference)
EPA化学物质信息 Aurate(1-), tetrachloro-, hydrogen, (SP-4-1)-(16903-35-8)
四氯金酸 用途与合成方法
氯金酸 氯金酸亦称“氯化金”、“四水合氯化金”。化学式HAuCl4·4H2O。分子量411.85。黄色针状晶体。有毒! 有腐蚀性。易溶于水，溶于乙醇、乙醚，微溶于三氯甲烷。从乙醇溶液中可结晶出无水氯金酸。受热分解。曝光生成黑色斑点，热至120℃分解为三氯化金。在碱性溶液中与KI反应可沉淀出褐色的金。在酸性溶液中遇二氯化锡则生成“桂皮紫色”。用甲基橙使其水溶液呈紫色，滴1～3滴盐酸使变绿色，再遇金盐溶液则变成淡紫色;加入冷的氢氧化钾溶液生成氢氧化金沉淀，通入二氧化硫则被还原成金粉。
制法：将纯金溶于王水(或为氯气饱和的盐酸)中经蒸馏、结晶即得。
用途：氯金酸主要用于微量分析、生物碱测定、电镀金和照相术，制金粉、瓷器着色、红色玻璃制造、特种墨水和医治结核病的药物，还可用用作分析试剂、铷(Rb)、铯(Cs)的微量分析。
用途  可用于半导体及集成电路引线框架局部镀金，印刷电路板、电子接插件
用途  主要用于镀金、特种墨水、药物、瓷金和红玻璃等，及多种金化合物制作的原料，照相业及化学试剂。
用途  用于制备溶液形式的稳定纳米级和未衍生化的胶体金粒子
安全信息
危险品标志  C,Xi
危险类别码  36/37/38-43-34-36/38-23
安全说明  26-36/37/39-45-36/37
危险品运输编号  UN 3260 8/PG 3
WGK Germany  3
RTECS号 CK6330000
F  3-8-10
TSCA  Yes
HazardClass  8
PackingGroup  III

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