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Sodium nitrate, EssentQ®

- Synonyms: Nitric acid sodium salt
- NaNO3
- M = 84,99 g/mol
- CAS [7631-99-4]
- EINECS-No.: 231-554-3
- Solub. in water: (20 ºC): soluble
- Melting point: 308 ºC
- LD 50 (oral, rat): 1267 mg/kg
- ADR: 5.1 O2 III UN 1498
- IMDG: 5.1 III UN 1498
- IATA/ICAO: 5.1 III UN 1498
- GHS-signal word: Danger
- GHS-H sentences: H272 - H319
- GHS-P sentences: P221 - P210 - P220 - P305+P351+P338 - P370+P378 - P501a
- Tariff number: 3102 50 00 89
- Applications: analytical chemistry, laboratory reagent, oxidizing agent, in food industry (E 251), preservative agent.

SPECIFICATIONS
assay (acidimetric): min. 99 %
insoluble in water: max. 0,025 %:
pH (5 %, H2O): 5,5 - 8,3
chlorides (Cl): max. 0,025 %
phosphates (as PO4): max. 0,001 %
sulfates (SO4): max. 0,01 %
ammonium (NH4): max. 0,005 %
arsenic (As): max. 2 ppm
calcium (Ca): max. 0,005 %
copper (Cu): max. 0,001 %
heavy metals (as Pb): max. 0,002 %
iron (Fe): max. 0,001 %
lead (Pb): max. 0,001 %
magnesium (Mg): max. 0,005 %
nickel (Ni): max. 0,001 %
loss on drying (105 ºC): max. 2 %