60356
磷酸钾二元 二元
puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)
别名:
磷酸二钾, 磷酸氢二钾
等级
ACS reagent
puriss. p.a.
质量水平
方案
≥99.0% (T)
表单
powder or crystals
杂质
≤0.001% total nitrogen (N)
缺失
≤1.0% loss on drying, 105 °C
pH值（酸碱度）
8.5-9.6 (25 °C, 50 mg/mL in H2O)
痕量阴离子
chloride (Cl-): ≤30 mg/kg
sulfate (SO42-): ≤50 mg/kg
痕量阳离子
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤500 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)
SMILES字符串
[K+].[K+].OP([O-])([O-])=O
InChI
1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
InChI key
ZPWVASYFFYYZEW-UHFFFAOYSA-L
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相关类别
一般描述
磷酸氢二钾是一种有用的生物缓冲液，其pH值在8.5-9.6范围内。磷酸钾以多种形式存在：一元（KH2PO4）、二元的（KH2PO4）和三元（K3PO4）。磷酸钾缓冲液被广泛用于平衡透析、高效液相色谱（HPLC）和亲和毛细管电泳研究。
应用
- β-乳球蛋白稳定的纳米乳剂--影响液滴大小和纳米乳剂稳定性的制剂和工艺因素。：研究探讨了制剂和工艺参数对β-乳球蛋白稳定纳米乳剂的稳定性和大小的影响，制剂过程中可能使用了磷酸氢二钾（Ali et al., 2016）。
- 凝胶挤出模块（GEM）片剂制剂特性与药物溶出速率的相关性研究。：研究了片剂制剂过程中凝胶挤出特性对药物溶出速率的影响，对于研究溶出行为的化学家具有重要意义，可能涉及了磷酸氢二钾（Juang and Storey, 2003）。
- 光化学诱导荧光检测-高效液相色谱法测定苯脲类化合物。：讨论了一种使用高效液相色谱法检测苯脲类化合物的方法，该方法可能涉及磷酸氢二钾作为流动相或样品制备的组分（Munoz de la Pena et al., 2002）。
- 药品中泛影酸钠的LC法测定和纯度分析。：研究详细介绍了一种测定和分析泛影酸钠纯度的方法，其中磷酸氢二钾可以作为色谱系统的一部分（Chellquist et al., 1997）。
储存分类代码
13 - Non Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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