磷酸二氢钾，Potassium phosphate monobasic；for analysis (<= 0.005% Na) EMSURE® ACS,ISO,Reag. Ph Eur

等级

ACS reagent

质量水平

300

Agency

reag. ISO
reag. Ph. Eur.

产品线

EMSURE^®

测定

≥99.0% dry basis (alkalimetric)
98.0-100.5% (alkalimetric)

形式

solid

效能

>4640 mg/kg LD₅₀, skin (Rabbit)

杂质

≤0.01% Insoluble matter

缺失

≤ 0.2% loss on drying, 130 °C

pH值（酸碱度）

4.2-4.6 (20 °C, 20 g/L in H₂O)

mp

252.6 °C (lit.)

密度

2.338 g/mL at 25 °C (lit.)

堆积密度

1200 kg/m³

痕量阴离子

chloride (Cl^-): ≤0.0005%
sulfate (SO₄^2-): ≤0.003%

痕量阳离子

As: ≤0.0002%
Fe: ≤0.0010%
N: ≤0.001%
Na: ≤0.005%
heavy metals: ≤0.001%
heavy metals (as Pb): ≤0.0010%

储存温度

2-30°C

SMILES string

[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