磷酸钠二元二元

磷酸氢二钠

产品名称：

7558-79-4
Sodium phosphate dibasic
Sodium hydrogenphosphate
Disodium phosphate
Disodium hydrogen phosphate
sec-Sodium phosphate
磷酸钠二元二元
磷酸一氢钠
磷酸氢二钠

产品介绍：

产品说明

应用

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。

基本信息

产品性质

质量水平	200
agency	meets analytical specifications of BP meets analytical specifications of Ph. Eur. meets analytical specifications of USP
等级	puriss.
测定	98-100.5% (calc. to the dried substance)
形式	powder
质量	meets analytical specification of Ph. Eur., BP, USP, FCC, E 339
杂质	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)
缺失	≤1% loss on drying, 105℃, 4h ≤1% loss on drying, 130 ℃
pH值(酸碱度)	8.4-9.6 (20 ℃, 1%)
pKa (25 ℃)	(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
溶解性	H₂O: soluble 8 parts H₂O: very soluble (Hot) alcohol: insoluble
痕量阴离子	chloride (Cl^-): ≤50 mg/kg fluoride (F^-): ≤10 mg/kg sulfate (SO₄^2-): ≤200 mg/kg
痕量阳离子	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
适用性	complies for appearance of solution
SMILES string	[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 key	BNIILDVGGAEEIG-UHFFFAOYSA-L

安全信息