What is Potassium sodium 2,3-dihydroxysuccinate
Properties and specification of Potassium sodium 2,3-dihydroxysuccinate
- Synonyms: Potassium Sodium Tartrate; E337; Seignette’s salt; Rochelle salt; Potassium sodium tartrate tetrahydrate; Potassium sodium 2,3-dihydroxysuccinate; L(+)-Tartaric acid potassium Sodium salt; butanedioic acid, 2,3-dihydroxy-, potassium sodium salt
- CAS number: 304–59–6
- EINECS: 206–156–8
- Purity: >99%
- Appearance: colourless / white crystalline solid
- Molecular weight: 282.1
- pH: 7–8.5
- Density: 1.79
- Specific gravity: 2.75 g/cm3
- Solubility in water: soluble 630g/L @20C
- Melting point: 75C
- Boiling point: 220C
- Refractive index: 1.59
- Oil Absorption: 37g/100g
Where to Buy Potassium Sodium Tartrate GRG
How to make Potassium sodium 2,3-dihydroxysuccinate
The salt is prepared by adding 0.5M sodium carbonate to a hot solution of 1M potassium bitartrate (cream of Tartar). The solution is mixed thoroughly and then filtered while hot. This solution is then dried to precipitate solid potassium sodium tartrate, as small crystals.
General Uses for Potassium sodium 2,3-dihydroxysuccinate
As additive in food industry ( E337 ) where it acts as sequestrant, emulsifier, stabilizer, buffer and antioxidant in cheese products, margarine, jellies, jams, minced meat, and sausage casings.
In pharmacology it is used as saline cathartics (usual adult dose: 5–10g). potassium bitartrate is administered rectally as a suppository with sodium bicarbonate to produce carbon dioxide, which promotes defecation by distending the rectal ampulla; administered for relief of constipation, and evacuation of the colon before surgical or diagnostic procedures or childbirth. It is not to be used on persons with heart problems or those on low sodium diets.
Potassium Sodium Tartrate is also used for the removal of toxic materials in some cases of poisoning.
Other applications include the preparation of piezoelectric crystals used in electrical appliances; as a laxative; in the manufacture of mirrors; in the plating industry; as a laboratory reagent; in the preparation of Fehlings solution for the detection of aldehydes; and for delaying the quick-setting of gypsum .
Health & Safety
This substance is not classified as dangerous according to Directive 67/548/EEC.
For full details see MSDS for Potassium sodium 2,3-dihydroxysuccinate
Where to Buy Potassium sodium 2,3-dihydroxysuccinate GRG
Other Tartrate salts:
DiSodium Tartrate Dihydrate GRG
Sodium hydrogen tartrate monohydrate – Sodium Bitartrate
Potassium Tartrate – Sodium Bitartrate