221341

Sodium nitrate

ACS reagent, ≥99.0%

• Synonym(s): Chile salpeter
• Empirical Formula (Hill Notation): NaNO₃
• CAS Number: 7631-99-4
• Molecular Weight: 84.99
• EC Number: 231-554-3
• MDL number: MFCD00011119
• UNSPSC Code: 12352302
• PubChem Substance ID: 329752261
• NACRES: NA.21

Properties

• grade: ACS reagent
• Agency: suitable for EPA 1621; suitable for EPA 300
• Assay: ≥99.0%
• form: powder or crystals
• impurities: ≤0.005% insolubles
• pH: 5.5-8.3 (25 °C, 5%)
• mp: 306 °C (dec.) (lit.)
• anion traces: chloride (Cl^-): ≤0.001%; iodate (IO₃^-): ≤5 ppm; nitrite (NO₂^-): ≤0.001%; phosphate (PO₄^3-): ≤5 ppm; sulfate (SO₄^2-): ≤0.003%
• cation traces: Ca: ≤0.005%; Fe: ≤3 ppm; Mg: ≥0.002%; heavy metals: ≤5 ppm (by ICP-OES)
• SMILES string: [Na+].[O-][N+]([O-])=O
• InChI: 1S/NO3.Na/c2-1(3)4;/q-1;+1
• InChI key: VWDWKYIASSYTQR-UHFFFAOYSA-N

Description

General description

Sodium nitrate is a water soluble inorganic salt that is commonly used in fertilizers. Due to its thermal stability at high temperature, it shows potential as a phase change material (PCM) for thermal energy storage.

Application

Sodium nitrate may be used for the modification of natural phosphate for use as a basic catalyst for Claisen-Schmidt condensation. It may also be used in the nitration of benzene in trifluoroacetic acid.

Safety Information

• Pictograms: GHS03,GHS07
• Signal Word: Warning
• Hazard Statements: H272,H319
• Precautionary Statements: P210 - P220 - P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2 - Ox. Sol. 3
• Storage Class Code: 5.1B - Oxidizing hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable