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Hydrogen Arsenate

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Identification
Molecular formula
H3AsO4
CAS number
7784-41-0
IUPAC name
hydrogen arsorate
State
State

At room temperature, hydrogen arsenate typically exists as a crystalline solid. It is often found in its hydrated form, which is stable under normal conditions.

Melting point (Celsius)
35.00
Melting point (Kelvin)
308.15
Boiling point (Celsius)
198.00
Boiling point (Kelvin)
471.15
General information
Molecular weight
141.94g/mol
Molar mass
141.9430g/mol
Density
3.1000g/cm3
Appearence

Hydrogen arsenate compounds typically appear as colorless or white crystalline powders, similar in appearance to other arsenate salts. The crystalline structure can vary depending on the hydrated form of the compound.

Comment on solubility

Solubility of Hydrogen Arsenate (H3AsO4)

Hydrogen arsenate, or arsenic acid, demonstrates interesting solubility characteristics that are critical in various chemical contexts. This compound is generally known to be soluble in water, making it an important player in aqueous chemistry.

Key Points on Solubility:

  • High Water Solubility: H3AsO4 readily dissolves in water, resulting in a clear solution. This is vital for its applications in chemical reactions and analytical chemistry.
  • Concentration Dependency: The solubility can change with concentration; at certain levels, it can influence the pH of a solution significantly.
  • Temperature Effect: As with many substances, the solubility of hydrogen arsenate may increase with rising temperatures, although precise data can vary.
  • Use in Buffer Solutions: Its solubility properties enable its use in buffer solutions, assisting in maintaining constant pH levels in various reactions.

In summary, the solubility of H3AsO4 is a fundamental aspect, assisting in its functionality in both laboratory and industrial processes. As we delve into the properties of this compound, one can appreciate its versatility and importance in the field of chemistry.

Interesting facts

Interesting Facts about Hydrogen Arsenate

Hydrogen arsorate, commonly known as hydrogen arsenate, is a fascinating compound with a variety of applications and implications in chemistry and environmental science. Here are some intriguing aspects of this compound:

  • Historical Significance: Hydrogen arsenate has been part of agricultural practices for many years, particularly in the form of arsenate pesticides. Its historical use underscores the intersection of chemistry and agriculture.
  • Biochemical Role: This compound plays a significant role in the metabolism of arsenic in living organisms. It has been studied for its effects on human health and potential toxicity.
  • Environmental Concerns: Due to its toxic nature, hydrogen arsenate is a compound of concern when it comes to water contamination and soil health. Understanding its chemistry is crucial for environmental remediation efforts.
  • Inorganic Chemistry: As an arsenate, it exhibits notable properties typical of inorganic compounds, including its strong coordination with metal ions, which can influence various chemical reactions.

In the words of renowned chemist Linus Pauling, "Chemistry is the study of the relationships between the properties of substances and the changes that they undergo." This is particularly true for hydrogen arsenate, as it exemplifies the complexity of chemical interactions and their far-reaching effects on health and the environment.

Additionally, understanding hydrogen arsenate is critical for developing mitigation strategies for arsenic pollution and ensuring safe agricultural practices. This compound serves as a reminder of the dual nature of chemical substances—where something can be both valuable and perilous, depending on its use and management.

Synonyms
hydrogen arsenate
arsenate(2-)
Arsenate (AsO4(3-)), monohydrogen
16844-87-4
hydrogen arsorate
orthoarsenate
inorganic arsenate
AsO43-
hydroxidotrioxidoarsenate(2-)
HAsO4(2-)
CHEBI:48597
DTXSID90168567
DJHGAFSJWGLOIV-UHFFFAOYSA-L
[AsO3(OH)](2-)
Q27121278