Mercury(II) iodide red - puriss. p.a., ACS, ≥99%(RT), red , CAS No.7774-29-0

CAS: 7774-29-0 Cat. No.: M433990 Molecular Weight: 454.40 EC Number: 231-873-8

GRADE & PURITY puriss. p.a., ACS, ≥99%(RT), red

Synonyms

Mercury(II) iodide, ACS reagent, >=99.0% | CHEBI:49659 | HgI2 | Mercury(II) iodate, 99% | Mercury(II) iodide red, puriss. p.a., ACS reagent, red, >=99.0% (RT) | mercury(2+) diiodide | Mercury(II) iodide, anhydrous, beads, -10 mesh, 99.999% trace metals ba

Storage

Protected from light,Room temperature

Shipped In

FedEx DG Service

Overview

General Description

Mercury(II) iodide red (HgI 2 ) is formed during iodometric analysis.

Application

Mercury(II) iodide may be used in the preparation of mercury(II) acetate and di\xadiodo\xadbis(1-methyl-1,3-imidazolium-2-thiol\xadato- S )\xadmercury(II).

Specifications

Synonyms

Mercury(II) iodide, ACS reagent, >=99.0% | CHEBI:49659 | HgI2 | Mercury(II) iodate, 99% | Mercury(II) iodide red, puriss. p.a., ACS reagent, red, >=99.0% (RT) | mercury(2+) diiodide | Mercury(II) iodide, anhydrous, beads, -10 mesh, 99.999% trace metals ba

Specifications & Purity

puriss. p.a., ACS, ≥99%(RT), red

Storage

Protected from light, Room temperature

Shipped In

FedEx DG Service

This product requires cold chain shipping. Ground and other economy services are not available.

Grade

ACS, puriss. p.a.

Purity

≥99%(RT)

Names and Identifiers

• Canonical Smiles: I[Hg]I
• IUPAC Name: diiodomercury
• InChIKey: YFDLHELOZYVNJE-UHFFFAOYSA-L
• INCHI: 1S/Hg.2HI/h;2*1H/q+2;;/p-2
• Isomeric SMILES: I[Hg]I
• WGK Germany: 3
• RTECS: OW5250000
• UN Number: 1638
• Packing Group: II
• Molecular Weight: 454.40
• Reaxy-Rn: 4937290
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4937290&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Transition metal salts
      • Subclass Transition metal iodides

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Transition metal salts
• Subclass: Transition metal iodides
• Intermediate Tree Nodes: Not available
• Direct Parent: Transition metal iodides
• Alternative Parents: Inorganic salts Inorganic mercury compounds
• Molecular Framework: Not available
• Substituents: Transition metal iodide - Inorganic salt - Inorganic mercury compound
• Description: This compound belongs to the class of inorganic compounds known as transition metal iodides. These are inorganic compounds in which the largest halogen atom is Iodine, and the heaviest metal atom is a transition metal.
• External Descriptors: mercury coordination entity

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Sensitivity: Light sensitive
• Boil Point(°C): 350℃
• Melt Point(°C): 259℃
• Molecular Weight: 454.400 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 455.78 Da
• Monoisotopic Mass: 455.78 Da
• Topological Polar Surface Area: 0.000 Ų
• Heavy Atom Count: 3
• Formal Charge: 0
• Complexity: 2.800
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

XLogP3

References

1. Hesong Wang, Zhangjie Yu, Mengzhe Liao, Chuandong Wu, Jiaxuan Yang, Jing Zhao, Jinlong Wang, Langming Bai, Guibai Li, Heng Liang.  (2023)  Replacing traditional pretreatment in one-step UF with natural short-distance riverbank filtration: Continuous contaminants removal and TMP increase relief.  WATER RESEARCH,      [PMID:38064787] [10.1016/j.watres.2023.120948]

2. Lichao Nengzi, Lin Meng, Yong Qiu, Xiaoju Li, Keniu Didi, Haitao Li, Guanglei Qiu.  (2023)  Influence of Nitrite on the Removal of Organic Matter and Manganese Using Pilot-Scale Biofilter: A Kinetic Study.  Water,  15  (12): (2145).  [PMID:] [10.3390/w15122145]

3. Zhenggang Huang, Chuanming Zhang, Chunyang Shen, Lili Jin, Yaxiong Zeng, Baohong Guan.  (2024)  Adsorption - Catalytic ozonation of ammonia nitrogen in drinking water by alkali-modified NaX zeolites.  Journal of Water Process Engineering,      [PMID:] [10.1016/j.jwpe.2024.105243]

4. Xiaoyuan Zhang, Qing Qin, Xuetong Zhai, Hongliang Guo, Song Han, Jo-Shu Chang, Duu-Jong Lee.  (2025)  Black-odor water body remediations by ecological floating island coupled with Ecobase and Acinetobacter haemolyticus: Lab and pilot tests.  Journal of the Taiwan Institute of Chemical Engineers,      [PMID:] [10.1016/j.jtice.2025.106081]

5. Xu Pengfei, Ma Haiming, Shen Wenjuan, Quan Fengjiao, Li Jianfen, He Yun.  (2024)  Efficient Ammonia Electrosynthesis from Nitrate on Non-Noble Fe/CeO2 Catalyst.  CATALYSIS LETTERS,      [PMID:] [10.1007/s10562-024-04709-8]

6. Fengjiao Quan, Guangming Zhan, Pengfei Xu, Xiaolan Chen, Wenjuan Shen, Falong Jia, Yun He, Jianfen Li.  (2024)  Electrochemical removal of nitrate in high-salt wastewater with low-cost iron electrode modified by phosphate.  Journal of Environmental Sciences,      [PMID:39095173] [10.1016/j.jes.2024.01.007]

7. Yingying Kong, Hongshan Wang, Wang Zhao, Qi Sun, Junjie Li, Shilie Pan.  (2024)  β-CsHg2I5, a compound with rare [Hg2I5] dimers and large optical anisotropy.  DALTON TRANSACTIONS,  53  (29): (12090-12097).  [PMID:38967448] [10.1039/D4DT01536C]

8. Fengjiao Quan, Pengfei Xu, Xiufan Liu, Wenjuan Shen, Yuhao Li, Jianfen Li, Yun He, Fangyuan Chen.  (2025)  Synergistic integration of nickel oxide and low-valent copper for enhanced electrocatalytic nitrate reduction to ammonia.  JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY,      [PMID:] [10.1016/j.jiec.2025.07.049]

9. Yan Jin, Xinyuan Wang, Ya-Ping Dong.  (2022)  Variation of Water Quality in Ningxia Section of the Yellow River in Recent 5 Years.  Journal of Chemistry,      [PMID:] [10.1155/2022/7704513]

10. Fengjiao Quan, Guangming Zhan, Bing Zhou, Cancan Ling, Xiaobing Wang, Wenjuan Shen, Jianfen Li, Falong Jia, Lizhi Zhang.  (2022)  Electrochemical removal of ammonium nitrogen in high efficiency and N2 selectivity using non-noble single-atomic iron catalyst.  Journal of Environmental Sciences,      [PMID:36375937] [10.1016/j.jes.2022.03.004]

11. Bingqin Su, Wei Zhang, Feiyun Sun, Xiaohui Quan.  (2024)  Hybrid peroxymonosulfate/activated carbon fiber-sequencing batch reactor system for efficient treatment of coking wastewater: Establishment and influential factors.  BIORESOURCE TECHNOLOGY,      [PMID:38810707] [10.1016/j.biortech.2024.130907]

12. Jiaopeng Lai, Ruotao Zeng, Xinru Bian, Wen Leng, Cao Yang, Lihui Yang, Wei Li, Guangzhao Wang, Ganfeng He, Sihao Lv.  (2025)  Ultralow Ru nanoparticle-loaded Ti4O7 anodes for efficient chlorine evolution and sustainable farm odor spray wastewater treatment.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2025.162891]

13. Pengfei Xu, Sisi Han, Fengjiao Quan, Xiufan Liu, Wenjuan Shen, Yuhao Li, Jianfen Li, Yun He, Kebing Song.  (2025)  Oxalic acid enhanced nano zero-valent iron for Electrocatalytic nitrate reduction to Ammonia.  JOURNAL OF ELECTROANALYTICAL CHEMISTRY,      [PMID:] [10.1016/j.jelechem.2025.119185]

14. Aonan Qiao, Yu Liu, Fei Li, Haixia Pan, Yanan Guo, Yang Liu, Xianliang Yi, Hao Zhou.  (2025)  Nitrogen-source dependent regulation of manganese oxidation in Pseudomonas sp. AN-1: Mechanistic insights from multi-omics analyses.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2025.169410]

15. Dong Kai, Han Shuhe, Li Yanan, Wang Zhongliao, Xue Chuang, Sun Xiaogang, Yao Yongchao, Li Haobo, Wang Xin, Ma Dongwei, Liu Li-Min, Zhang Bin.  (2025)  Testing, quantification, in situ characterization and calculation simulation for electrocatalytic nitrate reduction.  Nature Protocols,      [PMID:41331391] [10.1038/s41596-025-01289-8]

16. Yinxia Du, Wangfei Che, Yunfei Shi, Juanjuan Lu, Xiaodong Zhou, Ting Liu, Shilie Pan, Junjie Li.  (2025)  [HgX2] Linear Group Enabled Ultraviolet Birefringent Crystal RbHg5Br11 with Strong Optical Anisotropy and Wide Bandgap.  Advanced Science,  12  (45): (e14304).  [PMID:40923400] [10.1002/advs.202514304]

17. Dongmei lv, Yu Fu, Zihui Xu, Chi Guan, Di Shen, Zhelin Mao, Xinyi Long, Xiaolei Wang, Zhiyu Ren, Zhimin Chen, Shichao Du.  (2026)  Orchestrating deoxygenation and hydrogenation via oxygen-bridged heterometallic coordination for scalable ammonia synthesis.  APPLIED CATALYSIS B-ENVIRONMENTAL,      [PMID:] [10.1016/j.apcatb.2026.126985]