碳酸氢钠

等级

ACS reagent

Agency

suitable for EPA 1621
suitable for EPA 300

方案

≥99.7%
99.7-100.3%

表单

powder

杂质

≤0.015% Insoluble matter

pKa (25 °C)

(1) 6.37, (2) 10.25 (carbonic acid)

密度

2.16 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl^-): ≤0.003%
phosphate (PO₄^3-): ≤0.001%
sulfur compounds (as SO₄^2-): ≤0.003%

痕量阳离子

Ca: ≤0.02%
Fe: ≤0.001%
K: ≤0.005%
Mg: ≤0.005%
NH₄⁺: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

SMILES字符串

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

InChI

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

InChI key

UIIMBOGNXHQVGW-UHFFFAOYSA-M