71642

Phosphate de sodium dibasic

purum p.a., anhydrous, ≥98.0% (T)

• Synonyme(s) : Phosphate de sodium secondaire, Hydrogénophosphate de disodium, Hydrogénophosphate de sodium, Phosphate disodique
• Formule linéaire : Na₂HPO₄
• Numéro CAS: 7558-79-4
• Poids moléculaire : 141.96
• Numéro CE : 231-448-7
• Numéro MDL: MFCD00003496
• Code UNSPSC : 12161700
• eCl@ss : 38070211
• ID de substance PubChem : 329763392
• Nomenclature NACRES : NA.25

Propriétés

• Niveau de qualité: 300
• Qualité: purum p.a.
• Pureté: ≥98.0% (T)
• Forme: powder
• Perte: ≤2% loss on drying, 110 °C
• pH: 8.8-9.4 (25 °C, 50 mg/mL in H₂O)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• Solubilité: water: soluble 50 mg/mL at 25 °C
• Traces d'anions: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤1000 mg/kg
• Traces de cations: Ca: ≤50 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤200 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• Chaîne SMILES: [Na+].[Na+].[H]OP([O-])([O-])=O
• InChI: 1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• Clé InChI: BNIILDVGGAEEIG-UHFFFAOYSA-L

Description

Application

• Effects of a commercial whitening toothpaste containing hydrogen peroxide and citric acid on dentin abrasion and erosion.: This study evaluates the effects of sodium phosphate dibasic in a commercial whitening toothpaste formulation. The research highlights its role in mitigating dentin abrasion and erosion, emphasizing its importance in dental care applications (Kim JH et al., 2023).


• Electrospraying of Bio-Based Chitosan Microcapsules Using Novel Mixed Cross-Linker: Experimental and Response Surface Methodology Optimization.: Sodium phosphate dibasic is utilized in the cross-linking process of chitosan microcapsules via electrospraying. This study demonstrates its significance in optimizing the physical properties and stability of bio-based microcapsules for potential applications in drug delivery systems (Uko L et al., 2022).


• Compound treatment of thiolated citrus high-methoxyl pectin and sodium phosphate dibasic anhydrous improved gluten network structure.: This research investigates the combined effect of sodium phosphate dibasic and thiolated citrus high-methoxyl pectin on improving the gluten network structure in food systems, highlighting its role in enhancing food texture and quality (Chen J et al., 2023).


• Bioremediation of trichloroethylene-polluted groundwater using emulsified castor oil for slow carbon release and acidification control.: Sodium phosphate dibasic is used to control acidification in the bioremediation of trichloroethylene-polluted groundwater, demonstrating its application in environmental engineering and pollution control (Chen WT et al., 2022).


• Use of cellulose nanofibril (CNF)/silver nanoparticles (AgNPs) composite in salt hydrate phase change material for efficient thermal energy storage.: The study utilizes sodium phosphate dibasic in the development of a composite material for thermal energy storage, showcasing its importance in enhancing the thermal properties and efficiency of phase change materials (Shen Z et al., 2021).

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)