grade
ACS reagent
assay
≥99.5%
impurities
Neutrality, passes test, Substances darkened by hot sulfuric acid, passes test, ≤0.005% Insoluble matter
loss
≤0.01% loss on drying, 105°C
anion traces
chloride (Cl-): ≤0.002%, sulfate (SO42-): ≤0.002%
cation traces
Fe: ≤0.001%, K: ≤0.005%, NH4+: ≤0.002%, heavy metals (as Pb): ≤0.002%
SMILES string
[Na+].[Na+].[O-]C(=O)C([O-])=O
InChI
1S/C2H2O4.2Na/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2
InChI key
ZNCPFRVNHGOPAG-UHFFFAOYSA-L
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