Potassium Sodium Tartrate Tetrahydrate 98%

Potassium Sodium Tartrate Tetrahydrate 98% feedback

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Price: £32.95

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Stock Availability

On Shelf - Approx. UK delivery date: Friday the 29th August 2025*

In bulk stock - ships within 10 - 15 Working Days (Excluding weekends and public holidays)

4 to 6 weeks approx. (Not guaranteed)

UK Shipping

Unfortunately, we are not currently accepting orders for Northern Ireland.

We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.

AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE

* We will always try to ship as early as possible. Delivery could be much quicker than stated but is not guaranteed

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

Cas No: 6381-59-5

Einecs No: 206-156-8

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Code	Pack	Price
SCPSTT-250G-FOIL	250g Foil Pouch	£32.95
SCPSTT-2X250G-FOIL	2 x 250g	£59.95
SCPSTT-500G-FOIL	500g Foil Pouch	£58.95
SCPSTT-2X500G-FOIL	2 x 500g	£64.95
SCPSTT-1KG	1Kg	£48.95
SCPSTT-2X1KG	2 x 1Kg	£68.95
SCPSTT-2.5KG	2.5Kg	£66.95
SCPSTT-2X2.5KG	2 x 2.5Kg	£96.95
SCPSTT-5KG	5Kg	£143.95
SCPSTT-2X5KG	2 x 5Kg	£243.95
GPC9920-25Y	25Kg	£367.59

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