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Barium Chromate

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Identification
Molecular formula
BaCrO4
CAS number
10294-40-3
IUPAC name
barium(2+);dioxido(dioxo)chromium
State
State

Barium Chromate is typically a solid at room temperature. It is stable under normal conditions but can react at high temperatures or in the presence of certain reducing agents.

Melting point (Celsius)
2 100.00
Melting point (Kelvin)
2 373.00
Boiling point (Celsius)
1 800.00
Boiling point (Kelvin)
2 073.00
General information
Molecular weight
253.37g/mol
Molar mass
253.3740g/mol
Density
4.4987g/cm3
Appearence

Barium Chromate appears as a yellow crystalline solid or powder. It is often used as a pigment, known for its bright yellow color, under names like "pigment yellow 31."

Comment on solubility

Solubility of Barium Chromate (BaCrO4)

Barium chromate, or BaCrO4, is known for its distinctive yellow color and unique solubility characteristics. Its solubility in water is quite limited, making it an interesting compound in various chemical applications. Below are some key points regarding its solubility:

  • Low Solubility: BaCrO4 is generally considered insoluble in water, with a low solubility product constant (Ksp), which dictates how much of the compound can dissolve in a given amount of water.
  • Solvent Effects: The presence of ions in solution can affect its solubility. For example, the addition of other salts or the change in pH may lead to limited dissolution under specific conditions.
  • Precipitate Formation: Due to its low solubility, BaCrO4 often precipitates out of solution when barium ions (Ba2+) and chromate ions (CrO42-) are present in sufficient concentrations.
  • Toxicity Considerations: When handling BaCrO4, it is important to note its potential toxicity, particularly due to the chromium component, which further emphasizes the need to manage solubility in both industrial and laboratory settings.

In summary, the solubility of Barium Chromate is an important aspect that influences its behavior in various chemical environments. Understanding its solubility can aid in handling, storage, and application in analytical chemistry and materials science.

Interesting facts

Interesting Facts About Barium Chromate

Barium chromate, known scientifically as Barium(II) chromate and represented by the formula BaCrO4, is a compound of significant interest in both chemistry and various industrial applications. Here are some key points that highlight its importance:

  • Vibrant Color: Barium chromate is well-known for its striking yellow color, making it a popular choice as a pigment in paints, plastics, and ceramics.
  • Industrial Applications: Beyond its use as a pigment, it is also utilized in the production of glass, as well as a corrosion inhibitor in certain coatings and materials.
  • Role in Chemical Reactions: In organic chemistry, BaCrO4 serves as a useful reagent. It is often employed in various oxidative reactions due to its potent oxidizing properties.
  • Toxicity Considerations: With great power comes great responsibility; barium chromate is classified as a carcinogen and is toxic to humans and the environment. Thus, safety protocols must be strictly observed during its handling and use.
  • Ion Exchange: Barium ions play a crucial role in the process of ion exchange, which is fundamental in many chemical processes and can be highlighted in studies involving analytical chemistry.

Fun Fact:

One famous quote that resonates with chemists regarding Barium chromate is: "A splash of color, a pinch of caution!" This reminds us of the dual nature of many chemical compounds; they can be both beautiful and hazardous.

Studying compounds like Barium chromate showcases the fascinating world of chemistry, where color, function, and health intersect.

Synonyms
BARIUM CHROMATE
Permanent Yellow
Lemon chrome
Baryta Yellow
Lemon Yellow
Ultramarine Yellow
Barium chromate(VI)
Barium chromate (1:1)
CCRIS 7568
Barium chromium oxide (BaCrO4)
HSDB 6190
CI 77103
Chromic acid, barium salt (1:1)
UNII-7D7O9CF0IX
C.I. 77103
EINECS 233-660-5
7D7O9CF0IX
Chromic acid (H2CrO4), barium salt (1:1)
BARIUM CHROMATE [HSDB]
DTXSID1051517
BARIUM CHROMATE(VI) [MI]
Barium chromate oxide
barium tetraoxochromate(VI)
Barium chromic acid
BaCrO4
Barium chromate (VI)
Chromic acid, barium salt 1:1
DTXCID7030066
BARIUM(2+) ION CHROMIUM DIHYDRATE DIHYDROXIDE
233-660-5
steinbuhl yellow
un1564
10294-40-3
barium(2+);dioxido(dioxo)chromium
MFCD00014180
lemon-yellow
Barium chromate, >=98%
SCHEMBL307333
AKOS015903729
FB01174
Barium chromate, 99.995% (metals basis)
DB-264340
NS00112686
Barium chromate, 99.999% trace metals basis
Q206690