Potassium sodium tartrate tetrahydrate

Bezeichnung:Potassium sodium tartrate tetrahydrate

CAS-Nr6381-59-5

Englisch Name:Potassium sodium tartrate tetrahydrate

CBNumberCB7304332

SummenformelC4H12KNaO10

Molgewicht282.22

MOL-Datei6381-59-5.mol

Potassium sodium tartrate tetrahydrate physikalisch-chemischer Eigenschaften

Schmelzpunkt	70-80 °C
Siedepunkt	220°C
alpha	22.1 º (c=10, water)
Dichte	1.05 g/mL at 20 °C
Brechungsindex	22 ° (C=10, H2O)
storage temp.	Store at +5°C to +30°C.
Löslichkeit	H₂O: 1 M at 20 °C, clear, colorless
Aggregatzustand	Solid
Farbe	White semi-transparent
Säure-Base-Indikators(pH-Indikatoren)	6.0 - 8.5
Geruch (Odor)	Odorless
PH	7.0-8.5 (25℃, 50mg/mL in H2O)
Optische Aktivität	[α]20/D +28.0 to +30.0°
Wasserlöslichkeit	630 g/L (20 ºC)
maximale Wellenlänge (λmax)	λ: 260 nm Amax: 0.026 λ: 280 nm Amax: 0.022
Merck	14,7670
BRN	6113568
LogP	-1.426 (est)
CAS Datenbank	6381-59-5(CAS DataBase Reference)
NIST chemische Informationen	Sodium potassium tartrate tetrahydrate(6381-59-5)

Sicherheit

R-Sätze:	22-35
S-Sätze:	22-24/25-45-36/37/39-26
WGK Germany	3
TSCA	Yes
HS Code	2918 13 00

Gefahreninformationscode (GHS)

Potassium sodium tartrate tetrahydrate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R35:Verursacht schwere Verätzungen.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
white semi-transparent crystals
Verwenden
Potassium sodium tartrate tetrahydrate has been used in the preparation of 3,5-dinitrosalicylic acid solution used in the determination of the reducing sugar.
Verwenden
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.
Verwenden
Constituent of Fehling's solution
synthetische
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.
Allgemeine Beschreibung
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.
läuterung methode
Recrystallise it from distilled water (solubility: 0.4mL/g at 100o, 0.7mL/g at 14o). [Beilstein 3 IV 1223.]

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