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Potassium Sodium Tartrate, Tetrahydrate,

Piezoelectric compound for protein crystallography & Fehling's solution ingredient
SKU: PST3921
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Potassium Sodium Tartrate, Tetrahydrate, Granular, USP Grade


Piezoelectric compound for protein crystallography & Fehling's solution ingredient. Potassium Sodium Tartrate, Tetrahydrate, Granular, USP grade, is also known as Seignette's salt or Rochelle salt. It is a clear-white granular crystal that exhibits piezoelectricity. This unique property makes it an essential compound in protein crystallography, where it serves as a common precipitant. It is also an ingredient in Fehling's solution, a chemical reagent formerly used in the determination of reducing sugars in solutions. Additionally, it is a component of the Biuret reagent, which is used to measure protein concentration. Potassium Sodium Tartrate, Tetrahydrate, Granular, USP grade, has a minimum assay of 99.0%, maximum of 102.0%, and a typical value of 99.7%. It contains less than 0.001% heavy metals and has a specific gravity of 1.79. The product has a formula weight of 283.22 and a melting point of 75ºC. This product is suitable for manufacturing, processing, repackaging, or research purposes only and should be handled by experienced personnel.


Key Features:

  • Piezoelectric compound for protein crystallography
  • Ingredient in Fehling's solution for determining reducing sugars
  • Component of the Biuret reagent for measuring protein concentration
  • Clear-white granular crystal with a minimum assay of 99.0%, maximum of 102.0%, and a typical value of 99.7%
  • Contains less than 0.001% heavy metals and has a specific gravity of 1.79

Product Specifications:

CAS No.6381-59-5
Chemical FormulaC4H4KNaO6.4H2O
AssayMin. 99.0%, Max. 102.0%, Typical: 99.7%
Heavy Metals<0.001%
GradeUSP
Formula Weight283.22
Specific Gravity1.79
Melting Point75ºC
AppearanceClear-White granular crystals

Similar Products:

  • Ammonium Tartrate
  • Potassium Chloride
  • Sodium Tartrate
  • Calcium Chloride
  • Magnesium Sulfate

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

Caution: Only for manufacturing, processing, repackaging, or research purposes by experienced personnel.


Perfect for research purposes by experienced personnel
  • Availability: In Stock
  • Model: PST3921
  • Brand: ChemicalStore

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