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Merck

221341

Sodium nitrate

ACS reagent, ≥99.0%

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
NACRES:
NA.21
PubChem Substance ID:
329752261
UNSPSC Code:
12352302
EC Number:
231-554-3
MDL number:
MFCD00011119
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder or crystals

Key Documents

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Product Name

Sodium nitrate, ACS reagent, ≥99.0%

InChI key

VWDWKYIASSYTQR-UHFFFAOYSA-N

InChI

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

SMILES string

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

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 (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.003%

cation traces

Ca: ≤0.005%
Fe: ≤3 ppm
Mg: ≥0.002%
heavy metals: ≤5 ppm (by ICP)

application(s)

PFAS testing

Quality Level

200

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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.

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.

pictograms

Flame over circleExclamation mark
GHS03,GHS07

signalword

Warning

hcodes

H272,H319

Hazard Classifications

Eye Irrit. 2 - Ox. Sol. 3

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ9314
MKCW5569
MKCV6043
MKCW7741
MKCW4802

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Characterization of sodium nitrate as phase change material.
Bauer T, et al.
International Journal of Thermophysics, 33(1), 91-104 (2012)
Trifluoroacetic acid as a medium for aromatic nitration using sodium nitrate.
Spitzer UA & Stewart R.
The Journal of Organic Chemistry, 39(26), 3936-3937 (1974)
Chen Zhang et al.
Nutrients, 11(5) (2019-05-30)
The polysaccharide isolated from alfalfa was considered to be a kind of macromolecule with some biological activities; however, its molecular structure and effects on immune cells are still unclear. The objectives of this study were to explore the extraction and
Application of natural phosphate modified with sodium nitrate in the synthesis of chalcones: a soft and clean method.
Sebti S, et al.
J. Catal., 213(1), 1-6 (2003)
E T Urbansky et al.
Environmental pollution (Barking, Essex : 1987), 112(3), 299-302 (2001-04-09)
Paleogeochemical deposits in northern Chile are a rich source of naturally occurring sodium nitrate (Chile saltpeter). These ores are mined to isolate NaNO3 (16-0-0) for use as fertilizer. Coincidentally, these very same deposits are a natural source of perchlorate anion
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