无水碳酸钠，Sodium carbonate；anhydrous, free-flowing, Redi-Dri™, ACS reagent (primary standard), 99.95-100.05% dry basis

等级

ACS reagent (primary standard)
anhydrous

质量水平

100

产品线

Redi-Dri^™

测定

99.95-100.05% dry basis

形式

powder

质量

free-flowing

杂质

≤0.005% silica
≤0.01% insolubles

缺失

≤1.0% loss on heating

pH值（酸碱度）

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

痕量阴离子

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

痕量阳离子

Ca: ≤0.02%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.004%
heavy metals: ≤5 ppm (by ICP-OES)

SMILES string

O=C(O[Na])O[Na]

InChI

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

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L