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

assay

99.0-100.5%

form

solid

quality

meets analytical specification of FCC, E251

impurities

residual solvents, complies, ≤0.02% total halogen compounds (as Cl)

pH

5-7 (20 °C, 5%)

mp

306 °C (dec.) (lit.)

solubility

H₂O: soluble 1 gm in 0.6 ml (Boiling), H₂O: soluble 1 gm in 1.1 ml, alcohol: soluble 1 gm in 125 ml, alcohol: soluble 1 gm in 52 ml (Boiling)

anion traces

chloride (Cl^-): ≤10 mg/kg, nitrite (NO₂^-): ≤10 mg/kg, sulfate (SO₄^2-): ≤100 mg/kg

cation traces

As: ≤2 mg/kg, Ca: ≤50 mg/kg, Cu: ≤10 mg/kg, Fe: ≤10 mg/kg, Hg: ≤1 mg/kg, K: ≤100 mg/kg, Mg: ≤20 mg/kg, Pb: ≤4 mg/kg, Zn: ≤10 mg/kg