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Merck
CN

1.04873

磷酸二氢钾

for analysis EMSURE® ISO

别名:

磷酸二氢钾 一元, 正磷酸一钾,磷酸二氢钾,磷酸一钾, prim.-磷酸钾, 磷酸二氢钾

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关于此项目

线性分子式:
KH2PO4
化学文摘社编号:
分子量:
136.09
NACRES:
NA.21
EC Index Number:
231-913-4
UNSPSC Code:
12352302
MDL number:
Assay:
≥99.5% dry basis (alkalimetric), 99.5-100.5% (alkalimetric)
Grade:
reagent grade
Form:
solid
Solubility:
208 g/L
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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

Quality Level

grade

reagent grade

agency

reag. ISO, suitable for SM 5210

product line

EMSURE®

assay

≥99.5% dry basis (alkalimetric), 99.5-100.5% (alkalimetric)

form

solid

potency

>4640 mg/kg LD50, skin (Rabbit)

technique(s)

UV/Vis spectroscopy: suitable

loss

≤0.2% loss on drying, 110 °C, ≤0.2% loss on drying, 130 °C

pH

4.2-4.6 (20 °C, 20 g/L in H2O)

mp

252.6 °C (lit.)

solubility

208 g/L

density

2.338 g/mL at 25 °C (lit.)

bulk density

1200 kg/m3

anion traces

chloride (Cl-): ≤0.0005%, sulfate (SO42-): ≤0.003%

cation traces

As: ≤0.0002%, Cu: ≤0.0003%, Fe: ≤0.0010%, N: ≤0.001%, Na: ≤0.02%, Pb: ≤0.001%, heavy metals (as Pb): ≤0.0010%

storage temp.

2-30°C

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Application


  • β-乳球蛋白稳定纳米乳-影响液滴大小和纳米乳稳定性的配方和工艺因素。:该研究探讨了β-乳球蛋白在纳米乳中的稳定机制,对制药和食品科学具有重要意义,可能利用磷酸一碱钾等物质来稳定和控制pH值(Ali et al., 2016)。

  • 通过反相液相色谱法测定蜂蜜中磺胺噻唑残留。:讨论了一种使用反相液相色谱法检测蜂蜜中磺胺噻唑的方法,强调了分析技术的重要性,这种技术可能涉及用于样品制备和分析的试剂,如磷酸一碱钾(Barry and MacEachern, 1983)。


Analysis Note

含量(碱定量,以干物质计算):99.5 - 100.5 %
含量测定(碱定量;干物质): ≥ 99.5 %
pH 值(5 %;水):4.2 - 4.5 C
氯化物(Cl): ≤ 0.0005 %
硫酸盐(SO₄): ≤ 0.003 %
总氮(N): ≤ 0.001 %
重金属(以铅计): ≤ 0.0010 %
As(砷): ≤ 0.0002 %
Cu(铜): ≤ 0.0003 %
Fe(铁): ≤ 0.0010 %
Na(钠): ≤ 0.02 %
Pb(铅): ≤ 0.001 %
还原物质:通过测试
干燥失重(110 °C): ≤ 0.2 %
干燥失重 (130 °C): ≤ 0.2 %
符合 ISO

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

存储类别

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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