71642

磷酸钠 二元

purum p.a., anhydrous, ≥98.0% (T)

• 别名: 磷酸二钠, 磷酸二钠, 磷酸氢二钠, 磷酸氢钠
• 线性分子式: Na₂HPO₄
• CAS号: 7558-79-4
• 分子量: 141.96
• EC號碼: 231-448-7
• MDL號碼: MFCD00003496
• 分類程式碼代碼: 12161700
• eCl@ss: 38070211
• PubChem物質ID: 329763392
• NACRES: NA.25

属性

• 品質等級: 300
• 等級: purum p.a.
• 化驗: ≥98.0% (T)
• 形狀: powder
• 損耗: ≤2% loss on drying, 110 °C
• pH值: 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)
• 溶解度: water: soluble 50 mg/mL at 25 °C
• 負離子痕跡: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤1000 mg/kg
• 正離子痕跡: 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
• SMILES 字串: [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
• InChI 密鑰: BNIILDVGGAEEIG-UHFFFAOYSA-L

说明

應用

• 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).

安全信息

• 儲存類別代碼: 13 - Non Combustible Solids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable
• 個人防護裝備: Eyeshields, Gloves, type N95 (US)