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Sodium dihydrogen phosphate

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Identification
Molecular formula
NaH2PO4
CAS number
7558-80-7
IUPAC name
sodium;dihydrogen phosphate
State
State

At room temperature, sodium dihydrogen phosphate is typically found as a solid.

Melting point (Celsius)
60.00
Melting point (Kelvin)
333.15
Boiling point (Celsius)
100.00
Boiling point (Kelvin)
373.15
General information
Molecular weight
119.98g/mol
Molar mass
119.9770g/mol
Density
2.0400g/cm3
Appearence

Sodium dihydrogen phosphate appears as a white, crystalline powder or granules. It is highly water-soluble, allowing for easy dissociation in solution.

Comment on solubility

Solubility of Sodium Dihydrogen Phosphate

Sodium dihydrogen phosphate, commonly known as Sodium Phosphate, is a highly soluble compound in water. Here are some key points regarding its solubility:

  • Solubility in Water: Sodium dihydrogen phosphate is well known for its ability to dissolve in water. It generally exhibits high solubility at room temperature, making it useful in various chemical applications.
  • Temperature Dependence: Like many ionic compounds, the solubility of sodium dihydrogen phosphate can increase with temperature. Hence, heated water often leads to faster dissolution rates.
  • Concentration Factors: In moderate to high concentrations, sodium dihydrogen phosphate remains soluble; however, very high concentrations might lead to saturation where solid precipitate can form.
  • pH Sensitivity: The solubility is also pH-dependent. In acidic or neutral solutions, it shows enhanced solubility compared to highly alkaline conditions.

Overall, the significant solubility of sodium dihydrogen phosphate in water provides it with relevance in various fields, including biochemistry and industrial applications. As a solvate, it plays a crucial role in buffer solutions, aiding in maintaining pH levels effectively.

Interesting facts

Interesting Facts about Sodium Dihydrogen Phosphate

Sodium dihydrogen phosphate, commonly referred to as monosodium phosphate (MSP), is a fascinating chemical compound with a variety of applications in both industrial and food settings. Here are some intriguing aspects of this compound:

  • Buffering Agent: Sodium dihydrogen phosphate is widely used as a buffering agent in biochemical and chemical applications. It helps maintain a stable pH environment, which is crucial for various biological processes.
  • Food Additive: In the food industry, MSP acts as an emulsifier and a preservative. It is often found in processed cheese, meat, and bakery products, enhancing both texture and shelf life.
  • Fertilizer Component: As a source of phosphorus, sodium dihydrogen phosphate contributes to plant nutrition. It is frequently included in fertilizers to support healthy plant growth.
  • Role in Biochemistry: This compound plays a vital role in various biochemical pathways, particularly in ATP synthesis, which is essential for energy transfer in living organisms.
  • Safety and Compatibility: Generally recognized as safe (GRAS) by the FDA, sodium dihydrogen phosphate is considered non-toxic. However, it's always recommended to handle it with care in a laboratory setting.
  • Historical Significance: The use of phosphates dates back centuries, but the specific application of sodium dihydrogen phosphate became more popular in the 20th century as industrial processes evolved.

In summary, sodium dihydrogen phosphate is more than just a simple sample of inorganic chemistry; it plays an integral role in multiple industries and biochemistry. Its versatility as a buffering agent and nutritional additive makes it a vital compound worth studying!