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Potassium sodium tartrate

CAS No.
304-59-6
Chemical Name:
Potassium sodium tartrate
Synonyms
SODIUM POTASSIUM TARTRATE;Potassium sodium tartarate;ROCHELLE SALTS;Rochelle's salt;potassium sodium tartrate solution;FEHLING SOLUTION B;D-Potassiumsodiumtartrate;C4O6H2KNa;ALKALINE TARTRATE;FEHLING B SOLUTION
CBNumber:
CB6690997
Molecular Formula:
C4H4KNaO6
Molecular Weight:
210.16
MDL Number:
MFCD00065391
MOL File:
304-59-6.mol
Last updated:2024-03-22 11:43:20

Potassium sodium tartrate Properties

Melting point 70~80℃
Boiling point 100 °C
Density 1.24
vapor pressure 0Pa at 25℃
storage temp. Room Temperature
solubility Methanol, Water
form Liquid
color Clear Colorless
PH 7.0-8.5 (25℃, 1.5M in H2O)
optical activity [α]20/D +22±1°, c = 1% in H2O
Water Solubility g anhydrous/100 g H2O: 31.9 (0°C), 67.8 (20°C), 102 (30°C) [LAN05]; slightly soluble alcohol [MER06]
λmax λ: 260 nm Amax: 0.03
λ: 280 nm Amax: 0.025
LogP -1.080 (est)
FDA 21 CFR 184.1804; 582.1804; 582.6804; 331.11
Substances Added to Food (formerly EAFUS) SODIUM POTASSIUM TARTRATE
SCOGS (Select Committee on GRAS Substances) L(+)-sodium potassium tartrate
CAS DataBase Reference 304-59-6(CAS DataBase Reference)
FDA UNII P49F8NV7ES
EPA Substance Registry System Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, monopotassium monosodium salt (304-59-6)

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Risk and Safety Statements

Hazard Codes 
Risk Statements 
Safety Statements 
WGK Germany  WGK 3

Potassium sodium tartrate price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 81028 Potassium sodium tartrate solution BioUltra, 1.5?M in H2O 304-59-6 100ML $83.7 2024-03-01 Buy
Sigma-Aldrich 81028 Potassium sodium tartrate solution BioUltra, 1.5?M in H2O 304-59-6 500ML $305 2024-03-01 Buy
TRC P698713 PotassiumSodiumTartrate(1.5MSolutioninWater) 304-59-6 50ml $120 2021-12-16 Buy
TRC P698713 PotassiumSodiumTartrate(1.5MSolutioninWater) 304-59-6 100ml $215 2021-12-16 Buy
American Custom Chemicals Corporation CCH0007339 POTASSIUM SODIUM (+)-TARTRATE 95.00% 304-59-6 5MG $499.05 2021-12-16 Buy
Product number Packaging Price Buy
81028 100ML $83.7 Buy
81028 500ML $305 Buy
P698713 50ml $120 Buy
P698713 100ml $215 Buy
CCH0007339 5MG $499.05 Buy

Potassium sodium tartrate Chemical Properties,Uses,Production

Description

Potassium sodium tartrate is a double salt first prepared (in about 1675) by an apothecary, Pierre Seignette, of La Rochelle, France. As a result the salt was known as Seignette's salt or Rochelle salt. Rochelle salt is not to be confused with rock salt, which is simply the mineral form of sodium chloride. Potassium sodium tartrate and mono potassium phosphate were the first materials discovered to exhibit piezo electricity.
It is a colorless to blue - white salt crystallizing in the orthorhombic system. Its molecular formula is KNaC4H4O6·4H2O. It is slightly soluble in alcohol but more completely soluble in water. It has a specific gravity of about 1.79, a melting point of approximately 75°C, and has a saline, cooling taste. As a food additive, its E number is E337.
It has been used medicinally as a laxative. It has also been used in the process of silvering mirrors. It is an ingredient of Fehling's solution, formerly used in the determination of reducing sugars in solutions.

Chemical Properties

often supplied as a colourless aqueous solution

Uses

Sodium Potassium Tartrate is a buffer and sequestrant that is the salt of i, (+)–tartaric acid. It has a solubility in water of 1 g in 1 ml. It is also termed rochelle salt and potassium sodium tartrate.

Uses

Laxative.

Uses

Potassium Sodium Tartrate Solution is a chelator used for research purposes.

Preparation

Potassium sodium tartrate, (KNaC4H4O6) may be prepared by adding 0.5 mole sodium carbonate to heated solution containing 1 mole potassium bitartrate(KHC4H5O6). (1M KHC4H4O6 : 0.5M Na2CO3). The solution is filtered while hot. This solution is then dried to precipitate solid potassium sodium tartrate, as small crystallites.
Larger crystals of Rochelle salt have been grown under conditions of reduced gravity and convection on board Skylab .

Definition

ChEBI: The organic sodium and potassium salt of L-tartaric acid (mol ratio 1:1:1).

Flammability and Explosibility

Not classified

Purification Methods

Recrystallise it from distilled water (1.5mL/g) by cooling to 0o. [Beilstein 3 IV 1223.]

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View Lastest Price from Potassium sodium tartrate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Potassium sodium tartrate pictures 2024-03-23 Potassium sodium tartrate
304-59-6
US $0.00-0.00 / Kg 1Kg 99.9% 200tons airuikechemical co., ltd.
Potassium Sodium Tartrate pictures 2023-03-06 Potassium Sodium Tartrate
304-59-6
US $10.00 / Kg/Drum 1KG 98% 10 ton Hebei Guanlang Biotechnology Co,.LTD
Potassium sodium tartrate pictures 2022-09-24 Potassium sodium tartrate
304-59-6
US $10.00-8.00 / KG 1KG 99% 10 mt Hebei Guanlang Biotechnology Co., Ltd.
2,3-dihydroxy-butanedioicacimonopotassiummonosodiumsalt Butanedioicacid,2,3-dihydroxy-(R-(R*,R*))-,monopotassiummonosodiumsalt Butanedioicacid,2,3-dihydroxy-[R-(R*,R*)]-,monopotassiummonosodiumsalt L(+)Potassiumsodiumtartrate L-(+)-TARTARIC ACID POTASSIUM SODIUM SALT FEHLING'S REAGENT SOLUTION(B) FEHLING'S SOLUTION NO 2 FEHLING-SOXHLET SOLUTION B (ALKALI) FEHLING'S REAGENT II FEHLING'S REAGENT II FOR SUGARS FEHLINGS SOLUTION, ALKALINE B FEHLING'S SOLUTION B FEHLING B SOLUTION ALKALINE TARTRATE ALKALINE TARTRATE SOLUTION B ALKALINE POTASSIUM SODIUM TARTRATE POTASSIUM SODIUM TARTRATE SOLUTION 1.5M SodiumPotassiumTartarate Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, monopotassium monosodium salt l-(+)-tartaric acid potassium sodium salt solution [R-(R*,R*)]-2,3-Dihydroxybutanedioic acid monopotassium monosodium salt Potassium sodium tartrate Sodium potassium tartrate: (Potassium sodium tartrate) Alkaline potassium sodium tartrate, Potassium sodium tartrate solution alcaline L-(+)-Tartaric acid solution potassium Sodium salt Potassium sodium (2R,3R)-2,3-dihydroxybutanedioate (2R,3R)-2,3-Dihydroxybutanedioic acid 1-potassium 4-sodium salt L-Tartaric acid 1-potassium 4-sodium L-Tartaric acid 1-potassium 4-sodium salt L-Tartaric acid 1-sodium 4-potassium salt Potassium sodium tartrate solution,L-(+)-Tartaric acid potassium Sodium salt solution POTASSIUM SODIUM TARTRATE SOLUTION 1 monopotassiummonosodiumtartrate PotassiumsodiumD-tartrate sodiumpotassium(dl)-tartrate tartaricacid,monopotassiummonosodiumsalt 2,3-dihydroxy-[theta-(theta,theta)]-butanedioicacimonopotassiummonos Potassium Sodium Tartrate (1.5M Solution in Water) TIANFU-CHEM Potassium sodium tartrate C4O6H2KNa ROCHELLE SALTS SODIUM POTASSIUM TARTRATE FEHLING SOLUTION B Potassium sodium tartarate potassium sodium tartrate solution Rochelle's salt D-Potassiumsodiumtartrate Sodium Potassium tartrate Solution Potassium sodium tartrate,Potassium sodium tartrate tetrahydrate 304-59-6 C4H4KNaO6 KNaC4H4O6 NaOOCCHOH2COOK4H2O X-Ray Crystallography Proteomics and Protein Expression Protein Analysis Optimization Reagents Life Science