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鈣鎂指示劑

鈣鎂指示劑
IUPAC名
3-Hydroxy-4-[(2-hydroxy-5-methylphenyl)azo]-1-naphthalenesulfonic acid
英文名 Calmagite[1]
别名 卡美琪指示劑[2]
识别
CAS号 3147-14-6  checkY
PubChem 5483111
ChemSpider 21159783
SMILES
 
  • Oc3ccc(C)cc3N=Nc2c1ccccc1c(cc2O)S(O)(=O)=O
InChI
 
  • 1/C17H14N2O5S/c1-10-6-7-14(20)13(8-10)18-19-17-12-5-3-2-4-11(12)16(9-15(17)21)25(22,23)24/h2-9,20-21H,1H3,(H,22,23,24)
InChIKey VBRNLOQCBCPPHL-UHFFFAOYAD
性质
化学式 C17H14N2O5S
摩尔质量 358.37 g·mol−1
外观 紅至黑色的晶體
氣味 的氣味
熔点 330 °C(603 K)
危险性
主要危害 可能會分解生成、硫氧化物、氮氧化物和碳氧化物。
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

鈣鎂指示劑[3](英語:Calmagite)是一種用於分析化學的配位指示劑,以识别溶液中金屬離子的存在。与其他金屬離子指示劑一樣,鈣鎂指示劑与离子配位后会变色。鈣鎂指示劑與金屬離子配位时呈酒紅色,不與金屬離子配位时呈藍色、紅色或橙色。鈣鎂指示劑通常与EDTA结合使用,EDTA是一种更強的金屬离子螯合劑。[4]鈣鎂指示劑也用於臨床實驗室中用於鎂離子的定量分析。

参见

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參考資料

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  1. ^ Calmagite页面存档备份,存于互联网档案馆) at Sigma-Aldrich
  2. ^ F.James Holler, Stanley R. Crouch. 第17章. 方嘉德(翻譯) (编). 分析化學:古典分析 Skoog and West's Fundamentals of Analytical Chemistry 第9版. 2019年2月: 第 43頁. ISBN 978-986-5840-09-9 (中文(繁體)). 
  3. ^ 樂詞網--鈣鎂指示劑. 國家教育研究院. [2023-08-11]. (原始内容存档于2023-08-11) (中文(臺灣)). 
  4. ^ Harris, Daniel C. Quantitative Chemical Analysis, W.H. Freeman and Company ,2007. ISBN 0-7167-7041-5
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鈣鎂指示劑
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