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31440

Sigma-Aldrich

Sodium nitrate

puriss. p.a., ACS reagent, reag. ISO, ≥99.5%

Synonym(s):

Chile salpeter

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About This Item

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:
329753767

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 (PO43-): ≤2 mg/kg
sulfate (SO42-): ≤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

SMILES string

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

InChI

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

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General description

Sodium nitrate is an inorganic sodium salt. Sodium nitrate (Chile saltpeter, NaNO3) is found naturally in abundant amounts in paleogeochemical ores in northern Chile. Sodium nitrate can be obtained from these ores by mining and leaching. NaNO3 can be used as a fertilizer in agricultural fields.[1]

Application

Sodium nitrate may be employed in polyol process for the modification of morphological features of Pt nanoparticles.[2] It may be employed for the modification of natural phosphate (NP) to afford natural phosphate doped with sodium nitrate (NaNO3/NP). NaNO3/NP was used as a catalyst during the synthesis of chalcones.[3]

Pictograms

Flame over circleExclamation mark
GHS03,GHS07

Signal Word

Warning

Hazard Statements

H272,H319

Hazard Classifications

Eye Irrit. 2 - Ox. Sol. 3

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

does not flash

Flash Point(C)

does not flash

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN0342
BCCJ8512
BCCH5704
BCCF9641
BCBW2353

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