Sodium nitrate

InChI key

VWDWKYIASSYTQR-UHFFFAOYSA-N

InChI

1S/NO3.Na/c2-1(3)4;/q-1;+1

SMILES string

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

grade

ACS reagent, puriss. p.a.

agency

reag. ISO

assay

≥99.5%

impurities

≤0.002% ammonium (NH₄), ≤0.005% in water insoluble matters

pH

5.5-8.0 (20 °C, 5%)

mp

306 °C (dec.) (lit.)

anion traces

chloride (Cl^-): ≤5 mg/kg, iodate (IO₃^-): ≤5 mg/kg, nitrite (NO₂^-): ≤10 mg/kg, phosphate (PO₄^3-): ≤2 mg/kg, sulfate (SO₄^2-): ≤30 mg/kg

cation traces

Ca: ≤20 mg/kg, Cd: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤2 mg/kg, K: ≤50 mg/kg, Mg: ≤10 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg