Skip to main content

Chromium(VI) oxide

ADVERTISEMENT
Identification
Molecular formula
CrO3
CAS number
1333-82-0
IUPAC name
dioxido(dioxo)chromium
State
State

Chromium(VI) oxide is typically found in a solid state at room temperature. Due to its oxidizing nature, it must be handled with care and stored under carefully controlled conditions to prevent reactions with organic materials.

Melting point (Celsius)
197.00
Melting point (Kelvin)
470.00
Boiling point (Celsius)
250.00
Boiling point (Kelvin)
523.00
General information
Molecular weight
99.99g/mol
Molar mass
99.9940g/mol
Density
2.7009g/cm3
Appearence

Chromium(VI) oxide appears as a red to dark red crystalline solid. It is highly deliquescent, meaning it can absorb moisture from the air, which can lead it to slowly turn into a green solution of chromic acid in humid conditions.

Comment on solubility

Solubility of Dioxido(dioxo)chromium

Dioxido(dioxo)chromium, with the chemical formula CrO4, presents intriguing solubility characteristics. This compound is known primarily as a chromate following a specific oxidation state of chromium.

Solubility in Water

Chromates are typically soluble in water under standard conditions, making them readily available for chemical reactions in aqueous solutions. However, the solubility might be influenced by factors such as:

  • pH levels: The solubility of chromates increases in alkaline conditions.
  • Complexation: The presence of complexing agents can significantly affect solubility.
  • Temperature: Like many salts, higher temperatures can lead to increased solubility.

Environmental Considerations

It is important to note that the solubility of dioxido(dioxo)chromium has environmental implications:

  • Pollution: Soluble chromates can lead to groundwater contamination.
  • Regulations: Due to their toxic nature, solubility affects the handling and disposal regulations of chromate compounds.

In conclusion, while CrO4 displays solubility in water, it's crucial to consider several factors that influence its behavior in both laboratory and environmental settings. Understanding these aspects is essential for safe handling and effective applications of this compound.

Interesting facts

Interesting Facts About Dioxido(dioxo)chromium

Dioxido(dioxo)chromium is a fascinating chemical compound that highlights the unique behavior of transition metals and their oxides. Here are some engaging facts that showcase the compound's significance and properties:

  • Chromium Oxidation States: Dioxido(dioxo)chromium contains chromium in a relatively higher oxidation state, which is indicative of the metal's ability to form stable compounds with varying oxidation states ranging from +2 to +6.
  • Industrial Applications: This compound plays a crucial role in the production of chromium alloys and various chromium-based chemicals that are extensively used in electroplating, dyes, paints, and catalysts.
  • Environmental Considerations: While chromium compounds, particularly in their hexavalent forms, are essential in many industrial processes, they can also pose significant environmental risks. Efforts to understand and mitigate their impact on health and ecosystems are ongoing.
  • Colorful Chemistry: Chromium compounds are known for their vivid colors. The dioxido form contributes to various hues in chemical applications, making it popular in the art and design industries.
  • Coordination Chemistry: Dioxido(dioxo)chromium serves as a key example in coordination chemistry, where it can participate in the formation of complexes with other ligands. This enables scientists to modify the properties of the compound for specific applications.

To sum it up, dioxido(dioxo)chromium exemplifies the *complexity of transition metals* and their compounds, serving as a valuable subject for both research and practical applications. As we explore its properties and implications, we recognize its dual role in industry and environmental chemistry!

Synonyms
CHROMATE
Chromate ion
Chromate ions
Chromate (CrO42-)
CrO42-
chromate(2-)
tetraoxochromate(VI)
CCRIS 6173
tetraoxochromate(2-)
CHROMATE ANION
tetraoxidochromate(VI)
tetraoxidochromate(2-)
9S2Y101D6M
UNII-9S2Y101D6M
CrO4(2-)
DTXSID7065675
CHEBI:35404
CHROMATE (CRO42-) ION
CHROMATE ANION (CRO42-)
[CrO4](2-)
(CrO4)(2-)
DTXCID1034509
dioxido(dioxo)chromium
11104-59-9
chromates
Chromate(VI)
13907-45-4
CrO42?
Chromate Standard: CrO4(-2) @ 1000 microg/mL in H2O
Chromate Standard: CrO4(-2) @ 10000 microg/mL in H2O
diketo(dioxido)chromium
Chromate, wood preservative
NCGC00161828-01
Q26840817