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

• Sinónimos: L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt
• Fórmula lineal: KOCOCH(OH)CH(OH)COONa · 4H₂O
• Número de CAS: 6381-59-5
• Peso molecular: 282.22
• Beilstein: 6113568
• Número CE: 206-156-8
• Número MDL: MFCD00150989
• Código UNSPSC: 12352100
• ID de la sustancia en PubChem: 57648125
• NACRES: NA.21

Propiedades

• grado: puriss.
• Nivel de calidad: 200
• Análisis: 99.0-101.0% (calc. on H₂O free substance)
• formulario: solid
• actividad óptica: [α]20/D +28.0 to +30.0°
• calidad: meets analytical specification of Ph. Eur., BP, USP, FC, E 337
• impurezas: 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)
• pérdida: 21-26% loss on drying, 150 °C, 3 h
• pH: 6.5-8.5 (20 °C, 1%)
• trazas de anión: chloride (Cl^-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• trazas de catión: 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
• idoneidad: passes test for appearance of solution
• cadena 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
• Clave InChI: VZOPRCCTKLAGPN-ZFJVMAEJSA-L

Descripción

Descripción general

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.

Aplicación

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.

Información de seguridad

• Código de clase de almacenamiento: 13 - Non Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 1
• Equipo de protección personal: Eyeshields, Gloves, type N95 (US)