Potassium sodium tartrate tetrahydrate Chemical Properties

Melting point:

70-80 °C

alpha 

22.1 º (c=10, water)

Boiling point:

220°C

Density 

1.05 g/mL at 20 °C

refractive index 

22 ° (C=10, H2O)

storage temp. 

Store at +5°C to +30°C.

solubility 

H₂O: 1 M at 20 °C, clear, colorless

form 

Solid

color 

White semi-transparent

PH

7.0-8.5 (25℃, 50mg/mL in H2O)

Odor

Odorless

PH Range

6.0 - 8.5

optical activity

[α]20/D +28.0 to +30.0°

Water Solubility 

630 g/L (20 ºC)

λmax

λ: 260 nm Amax: 0.026
λ: 280 nm Amax: 0.022

Merck 

14,7670

BRN 

6113568

LogP

-1.426 (est)

CAS DataBase Reference

6381-59-5(CAS DataBase Reference)

NIST Chemistry Reference

Sodium potassium tartrate tetrahydrate(6381-59-5)

Safety Information

Risk Statements 

22-35

Safety Statements 

22-24/25-45-36/37/39-26

WGK Germany 

3

TSCA 

Yes

HS Code 

2918 13 00

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Potassium sodium tartrate tetrahydrate Usage And Synthesis

Chemical Properties

white semi-transparent crystals

Uses

Constituent of Fehling's solution

Uses

Potassium sodium tartrate tetrahydrate has been used in the preparation of Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method. It may be used as a constituent to prepare DNS (3,5- dinitrosalicylic acid) reagent and Fehling′s solution B, which are used in the determination of reducing sugar.

Uses

Potassium sodium tartrate tetrahydrate has been used in the preparation of 3,5-dinitrosalicylic acid solution used in the determination of the reducing sugar.

Preparation

Potassium sodium tartrate tetrahydrate is obtained by the follow steps:The starting material is tartar with a minimum tartaric acid content 68 %. This is first dissolved in water or in the mother liquor of a previous batch. It is then basified with hot saturated sodium hydroxide solution to pH 8, decolorized with activated charcoal, and chemically purified before being filtered. The filtrate is evaporated to 42 °Bé at 100 °C, and passed to granulators in which Seignette's salt crystallizes on slow cooling. The salt is separated from the mother liquor by centrifugation, accompanied by washing of the granules.

General Description

Potassium sodium tartrate tetrahydrate is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient.

Biochem/physiol Actions

Potassium sodium tartrate tetrahydrate might be used as a buffering agent in cosmetic products. It is also used as a food additive. Certain studies show that it produces acute renal toxicity in rabbits and dogs.

Purification Methods

Recrystallise it from distilled water (solubility: 0.4mL/g at 100o, 0.7mL/g at 14o). [Beilstein 3 IV 1223.]

Potassium sodium tartrate tetrahydrate(6381-59-5)Related Product Information

• L(+)-Tartaric acid
• D(-)-Tartaric acid
• Potassium persulfate
• Potassium iodate
• Potassium sorbate
• Potassium iodide
• Potassium chloride
• Potassium tartrate
• Sodium chloride
• Tylosin tartrate
• Potassium Acetate
• Potassium Citrate
• Potassium tartrate hemihydrate
• Potassium sodium tartrate
• Disodium tartrate dihydrate
• SODIUM BITARTRATE, MONOHYDRATE
• Potassium antimonyl tartrate sesquihydrate
• 8-CHLOROADENOSINE-3',5'-CYCLIC MONOPHOSPHOROTHIOATE, RP-ISOMER SODIUM SALT