25508

Potassium sodium tartrate tetrahydrate

puriss., 99.0-101.0% (calc. on H₂O free substance), meets analytical specification of Ph. Eur., BP, USP, FC, E 337

• Synonim(y): L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt
• Wzór liniowy: KOCOCH(OH)CH(OH)COONa · 4H₂O
• Numer CAS: 6381-59-5
• Masa cząsteczkowa: 282.22
• Beilstein: 6113568
• Numer WE: 206-156-8
• Numer MDL: MFCD00150989
• Kod UNSPSC: 12352100
• Identyfikator substancji w PubChem: 57648125
• NACRES: NA.21

Właściwości

• klasa czystości: puriss.
• Poziom jakości: 200
• Próba: 99.0-101.0% (calc. on H₂O free substance)
• Postać: solid
• aktywność optyczna: [α]20/D +28.0 to +30.0°
• jakość: meets analytical specification of Ph. Eur., BP, USP, FC, E 337
• zanieczyszczenia: acidity or alkalinity, in accordance; residual solvent, complies; ≤0.001% heavy metals (as Pb); ≤0.003% total nitrogen (N); ≤0.004% ammonium (NH₄); ≤0.004% free alkali (as NaOH); ≤0.0075% free acid (as C₄H₆O₆); 24-26% water (Karl Fischer)
• strata: 21-26% loss on drying, 150 °C, 3 h
• pH: 6.5-8.5 (20 °C, 1%)
• ślady anionów: chloride (Cl^-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• ślady kationów: As: ≤1 mg/kg; Ba:, in accordance; Ca: ≤50 mg/kg; Cu: ≤10 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; Pb: ≤2 mg/kg; Zn: ≤10 mg/kg
• przydatność: passes test for appearance of solution
• ciąg SMILES: O.O.O.O.[Na+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
• InChI: 1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;4*1H2/q;2*+1;;;;/p-2/t1-,2-;;;;;;/m1....../s1
• Klucz InChI: VZOPRCCTKLAGPN-ZFJVMAEJSA-L

Opis

Opis ogólny

Potassium sodium tartrate tetrahydrate (Rochelle salt) exists in the ferroelectric phase in the temperature range of 255 to 297K. In this phase, it crystallizes in the monoclinic system and exhibits space group P2₁. Saturated aqueous solution of potassium sodium tartrate (Rochelle salt) has been used for the preparation of its tetrahydrate crystals.

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

Zastosowanie

Potassium sodium tartrate tetrahydrate has been used in the β-1,3-glucanase activity assay.

Potassium sodium tartrate tetrahydrate may be used as a component to prepare DNS (3,5- dinitrosalicylic acid) reagent and Fehling′s solution B, which are used in the determination of reducing sugar.

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Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 13 - Non Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Środki ochrony indywidualnej: Eyeshields, Gloves, type N95 (US)