Applications

Potassium Sodium Tartrate Tetrahydrate 98%

• Used in food additive E337
• Used medicinally as a laxative
• Organic synthesis to break up emulsions
• Common precipitant in protein crystallography

General

What is Potassium Sodium Tartrate Tetrahydrate? Also known as Rochelle Salts, it is a colourless to blue-white salt crystallising in the orthorhombic system. Its molecular formula is KNaC₄H₄O₆.4H₂O. It is slightly soluble in alcohol but more completely soluble in water.

Consistent Quality: We provide only high-quality Potassium Sodium Tartrate Tetrahydrate, ensuring reliable and consistent performance for all applications.

Shipped from Manchester, UK Facility: Sourced and packaged in non-toxic, chemical-resistant containers to ensure safe handling and preserve product quality during transport.

Frequent Uses

Analytical Chemistry
It's a key component in Fehling's solution, used to test for the presence of reducing sugars. Also used in the Biuret reagent to measure protein concentration, as it helps maintain cupric ions in solution at an alkaline pH.

Protein Crystallography
Acts as a precipitant in protein crystallography, a technique used to study protein structure. 

Piezoelectric Properties
Its ability to generate an electrical charge when stressed (and vice versa) makes it useful in sensors and actuators.

Combustion Accelerator
Used as a combustion accelerator in cigarette paper.

Specification

• Minimum Assay: >98%
• Molecular Formula: C₄H₄KNaO₆•4H₂O
• Molecular Weight: 282.23
• Solubility in water (% weight): Soluble in water
• Chloride (Cl): <0.005%
• Sulphate (SO4): <0.05%
• Acidity or Alkalinity: Max 1 ml N%

Hazards

Hazard Phrases: Not considered harmful under normal laboratory conditions

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