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Potassium tetraiodomercurate(II)

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Identification
Molecular formula
K2HgI4
CAS number
10418-35-4
IUPAC name
dipotassium;tetraiodomercury(2-)
State
State

At room temperature, potassium tetraiodomercurate(II) exists as a solid. These solids are stable under normal conditions.

Melting point (Celsius)
276.00
Melting point (Kelvin)
549.15
Boiling point (Celsius)
360.00
Boiling point (Kelvin)
633.15
General information
Molecular weight
749.61g/mol
Molar mass
749.6080g/mol
Density
3.4436g/cm3
Appearence

Potassium tetraiodomercurate(II) typically appears as bright yellow crystalline solids. These crystals are often needle-like and are known for their high density and distinctive color.

Comment on solubility

Solubility of Dipotassium Tetraiodomercury(II)

Dipotassium tetraiodomercury(II), commonly represented by the formula K2[HgI4], exhibits interesting solubility characteristics that are noteworthy. This compound is classified as a coordination complex, consisting of the dipotassium cation and the tetraiodomercury(II) anion.

Solubility in Water

In terms of solubility, dipotassium tetraiodomercury(II) is considered:

  • Moderately soluble in water, allowing for the potential to dissociate into its constituent ions.
  • It tends to form a deep orange-red solution, indicative of the presence of the tetraiodomercury(II) ion.

Factors Influencing Solubility

The solubility of this compound can be influenced by several factors:

  • Temperature: Higher temperatures generally increase solubility, allowing greater interaction between the ions and the water molecules.
  • Presence of other ions: Some cations or anions in solution may affect the solubility profile through common ion effect or complexation.

Quote

As with many coordination compounds, “the solubility behavior reflects both the ionic nature and the geometric configuration of the compound.”

In conclusion, the solubility of dipotassium tetraiodomercury(II) is significantly influenced by its ionic structure and environmental conditions, making it an intriguing compound for further study in chemical properties.

Interesting facts

Interesting Facts about Dipotassium Tetraiodomercury(II)

Dipotassium tetraiodomercury(II) is a fascinating compound that combines potassium and mercury in an intriguing ionic arrangement. Here are some interesting aspects to consider:

  • Historical Significance: This compound was of considerable interest in the early stages of organomercury chemistry. Its study has profoundly shaped our understanding of mercury compounds and their properties.
  • Unique Structure: The presence of iodine atoms bonded to mercury creates an intriguing framework that contributes to the compound's unique reactivity and properties.
  • Source of Iodine: Dipotassium tetraiodomercury(II) serves as an important source of iodine, which plays a crucial role in various biochemical processes and is essential for human health, particularly in the synthesis of thyroid hormones.
  • Analytical Applications: This compound can be utilized in specific analytical applications, especially in the detection of thiol compounds, making it valuable in organic and inorganic chemistry.

It’s worth noting that, like many mercury compounds, dipotassium tetraiodomercury(II) must be handled with care due to the toxic nature of mercury. Efforts to study and document the interactions of this compound lead to greater awareness and advancements in both safety and chemistry. As a quote from famous chemist Linus Pauling goes: "Chemistry is the central science," highlighting the crucial role such compounds play in bridging various chemical disciplines.

In conclusion, dipotassium tetraiodomercury(II) is not only essential for its chemical characteristics but also provides insight into the historical context of mercury research and its continuing relevance in modern chemistry.

Synonyms
7783-33-7
Potassium mercuric iodide
Nessler's reagent
Mayer's reagent
Potassium tetraiodomercurate(II)
Nessler reagent
Caswell No. 695
Potassium iodomercurate
Dipotassium tetraiodomercurate
Mercury potassium iodide
Mercury(II) potassium iodide
MERCURIC POTASSIUM IODIDE
Potassium mercuriiodide
Potassium mercury iodine
Mercurate(2-), tetraiodo-, dipotassium, (T-4)-
Potassium tetraiodomercurate
Dipotassium tetraiodomercurate(2-)
Mercuric potassium iodide, solid
HSDB 1243
Nesslers Reagenz
Potassium tetraiodomercurate (II)
Mercury potassium iodide (K2HgI4)
EINECS 231-990-4
UN1643
reactivo de Nessler
EPA Pesticide Chemical Code 052107
Mercurate(2-), tetraiodo-, dipotassium
Potassium mercuric iodide [NF]
Kaliumtetraiodomercurat(II)
potassium tetraiodidomercurate
K2[HgI4]
Mercurate (2-), tetraiodo-, dipotassium
7N83S6IU0F
CHEBI:51568
DTXSID30893684
potassium tetraiodidomercurate(II)
potassium tetraiodidomercurate(2-)
Mercurate(2-), tetraiodo-, dipotassium, (beta-4)-
K2(HgI4)
Mercurate(2-), tetraiodo-, potassium (1:2), (T-4)-
Mercury(2+) potassium iodide
dipotassium tetraiodomercurydiuide
Dipotassium tetraiodomercurate(2)
DTXCID101323715
Mercurate(2), tetraiodo, dipotassium
Mercury(II) chloride-potassium iodide solution
Potassium tetraiodomercurate-potassium hydroxide solution
231-990-4
dipotassium tetraiodomercurate(ii)
mercurate(2-), tetraiodo-, potassium (1:2)
mercurius cum kali iodatus
mercurius cum kali iodatus [hpus]
potassium mercuric iodide [hsdb]
potassium tetraiodomercurate(ii) [mi]
Antistrumin
dipotassium;tetraiodomercury(2-)
UNII-7N83S6IU0F
MFCD00049656
OPCMAZHMYZRPID-UHFFFAOYSA-J
AKOS015902445
NS00080702
Mercury potassium iodide [UN1643] [Poison]
Q416649