71498

Sodium citrate monobasic

purum p.a., anhydrous, ≥99.0% (T)

• Sinonimo/i: Citric acid monosodium salt, Sodium dihydrogen citrate
• Formula condensata: HOC(COONa)(CH₂COOH)₂
• Numero CAS: 18996-35-5
• Peso molecolare: 214.11
• Beilstein: 3920246
• Numero CE: 242-734-6
• Numero MDL: MFCD00013067
• Codice UNSPSC: 12352100
• ID PubChem: 57652307
• NACRES: NA.22

Proprietà

• Livello qualitativo: 300
• Grado: purum p.a.
• Saggio: ≥99.0% (T)
• Stato: crystals
• pH: 3.5-3.8 (25 °C, 50 mg/mL in H₂O)
• Solubilità: water: soluble 50, clear, colorless
• Anioni in tracce: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Cationi in tracce: Ca: ≤50 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤100 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• Gruppo funzionale: carboxylic acid; hydroxyl
• Stringa SMILE: [Na+].OC(=O)CC(O)(CC([O-])=O)C(O)=O
• InChI: 1S/C6H8O7.Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);/q;+1/p-1; HWPKGOGLCKPRLZ-UHFFFAOYSA-M

Descrizione

Descrizione generale

Sodium citrate monobasic (Sodium dihydrogen citrate) is the monosodium salt of citric acid. Isopiestic method has been proposed for the evaluation of vapor-liquid equilibrium parameters (water activity, vapor pressure, osmotic coefficient and activity coefficient) for the binary aqueous mixtures of sodium dihydrogen citrate.[1] X-ray diffraction method has been reported to investigate the crystal structure of sodium dihydrogen citrate. Its crystals are monoclinic having space group of P2₁/a.[2]

Sodium citrate monobasic is commonly used as a buffering agent in various applications.[3]

Sodium citrate is a useful setting retardant for the improvement of the properties of brushite cement.[4]

Applicazioni

Sodium citrate monobasic is suitable for use in the synthesis of 16 functional alkene-terminated hyperbranched oligomer, useful for the preparation of composite system for dental composite applications.[5] It is suitable for use in the preparation of gastric solutions, to investigate the effects of cooking methods and of the co-ingestion of selected food items on Hg bioaccessibility in fish species.[6]

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Eyeshields, Gloves, type N95 (US)