等级
ACS reagent
anhydrous
puriss. p.a.
质量水平
Agency
reag. ISO
reag. Ph. Eur.
检测方案
99.5-100.5%
形式
crystalline
杂质
≤0.001% total nitrogen (N)
缺失
≤0.2% loss on drying, 105 °C
pH值（酸碱度）
4.2-4.5 (20 °C, 5%)
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
mp
252.6 °C (lit.)
溶解性
water: 0.5 g/10 mL, clear, colorless to light yellow
密度
2.338 g/mL at 25 °C (lit.)
痕量阴离子
chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤30 mg/kg
痕量阳离子
As: ≤0.5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤15 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤0.001% (by ICP)
SMILES字符串
[K+].OP(O)([O-])=O
InChI
1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChI key
GNSKLFRGEWLPPA-UHFFFAOYSA-M
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一般描述
磷酸二氢钾广泛用于配制缓冲液，以制备生物样本和研究生物相互作用。
应用
磷酸二氢钾已用于：
- 制备鲁米诺工作液，研究化学发光系统鲁米诺-H2O2的助氧化剂活性
- 配制磷酸缓冲液(PBS)培养胚胎干细胞(ESC)并生成胚状体
- 溶于PBS制备聚二甲基硅氧烷(PDMS)基底
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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