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Potassium sodium tartrate

Product Name
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
Formula Weight
210.16
MOL File
304-59-6.mol
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Potassium sodium tartrate Property

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)
CAS DataBase Reference
304-59-6(CAS DataBase Reference)
EPA Substance Registry System
Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, monopotassium monosodium salt (304-59-6)
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Safety

Hazard Codes 
Risk Statements 
Safety Statements 
WGK Germany 
WGK 3
Hazardous Substances Data
304-59-6(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

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

Laxative.

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

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.]

Potassium sodium tartrate Preparation Products And Raw materials

Raw materials

Potassium hydroxide Maleic anhydride Potassium bicarbonate Hydrogen peroxide Potassium carbonate DL-Tartaric acid Sodium hydroxide Sodium carbonate

Preparation Products

Sulfur Sodium thiocyanate Sodium thiosulfate Sulphur Sodium thiosulfate pentahydrate Ammonia
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Potassium sodium tartrate Suppliers

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View Lastest Price from Potassium sodium tartrate manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Potassium sodium tartrate 304-59-6
Price
US $50.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000kg/week
Release date
2024-05-20
airuikechemical co., ltd.
Product
Potassium sodium tartrate 304-59-6
Price
US $0.00-0.00/Kg
Min. Order
1Kg
Purity
99.9%
Supply Ability
200tons
Release date
2024-04-08
Hebei Chuanghai Biotechnology Co,.LTD
Product
Potassium Sodium Tartrate 304-59-6
Price
US $10.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
10 ton
Release date
2024-08-20

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