... spec.ItemGradeBest qualityFirst qualityQualifier Sodium nitrateAssay(dry basis), %, ≥ 99.5 99.3 98.5 Moisture, %, ≤ 1.5 1.8 2.0 Insol. in water, %, ≤ ... and ethanol. Density: 2.257(20oC), relative molecular weight: 84.99. m.p.: 306oC, b.p.: 380oC.Molecular Formula: NaNO3Molecular ... Weight: 84.99CAS NO.: 7631-99-4Use:It is used as fluxing medium for enamel industry ...