碳酸氢钾，Potassium bicarbonate；puriss., meets analytical specification of Ph. Eur., BP, USP, E501, 99.5-101.0% (acidimetric)

等级

puriss.

质量水平

200

检测方案

99.5-101.0% (acidimetric)

形式

powder or crystals

质量

meets analytical specification of Ph. Eur., BP, USP, E501

杂质

organic volatile impurities, complies (GC)
≤0.0005% heavy metals (as Pb)
≤0.002% ammonium (NH₄)

缺失

≤0.1% loss on drying, 4 h (on silica gel)

pH值（酸碱度）

8.0-8.6 (20 °C, 5%)

溶解性

water: soluble(lit.)

痕量阴离子

carbonate (K₂CO₃): ≤2.5%
chloride (Cl^-): ≤50 mg/kg
sulfate (SO₄^2-): ≤100 mg/kg

痕量阳离子

As: ≤1 mg/kg
Ca: ≤50 mg/kg
Fe: ≤10 mg/kg
Na: ≤300 mg/kg
Pb: ≤5 mg/kg

适用性

complies for appearance of solution

SMILES string

[K+].OC([O-])=O

InChI

1S/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1

InChI key

TYJJADVDDVDEDZ-UHFFFAOYSA-M