04276

磷酸钠 二元

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E 339, anhydrous, 98-100.5% (calc. to the dried substance)

• 同義詞: 磷酸二钠, 磷酸二钠, 磷酸氢二钠, 磷酸氢钠
• 線性公式: Na₂HPO₄
• CAS號碼: 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: 329747909
• NACRES: NA.25

屬性

• agency: meets analytical specifications of BP; meets analytical specifications of Ph. Eur.; meets analytical specifications of USP
• 品質等級: 200
• 等級: puriss.
• 化驗: 98-100.5% (calc. to the dried substance)
• 形狀: powder
• 品質: meets analytical specification of Ph. Eur., BP, USP, FCC, E 339
• 雜質: reducing matter, complies; residual solvents, complies; ≤0.001% heavy metals (as Pb); ≤0.002% ammonium (NH₄); ≤0.2% water-insoluble matter; ≤1% NaH₂PO₄ (calc. to dried subst.); ≤2.0% pyrophosphate (as Na₄P₂O₇)
• 損耗: ≤1% loss on drying, 105°C, 4h; ≤1% loss on drying, 130 °C
• pH值: 8.4-9.6 (20 °C, 1%)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• 溶解度: H₂O: soluble 8 parts; H₂O: very soluble (Hot); alcohol: insoluble
• 負離子痕跡: chloride (Cl^-): ≤50 mg/kg; fluoride (F^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤200 mg/kg
• 正離子痕跡: As: ≤2 mg/kg; Cd: ≤1 mg/kg; Cu: ≤10 mg/kg; Fe: ≤20 mg/kg; Hg: ≤1 mg/kg; Pb: ≤4 mg/kg; Zn: ≤10 mg/kg
• 適合性: complies for appearance of solution
• 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

描述

應用

磷酸氢二钠已用于制备磷酸盐缓冲液，该缓冲液可用于X-gal染色。

生化／生理作用

磷酸氢二钠是变性凝胶电泳缓冲液的重要组分。 它能够诱导Sprague-Dawley大鼠的肾小球钙化以及其他肾病综合征。

安全資訊

• 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