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13444

Sigma-Aldrich

Sodium nitrate

meets analytical specification of FCC, E251, 99.0-100.5%

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:
329750176
assay:
99.0-100.5%
form:
solid
solubility:
H2O: soluble 1 gm in 0.6 ml (Boiling)
H2O: soluble 1 gm in 1.1 ml
alcohol: soluble 1 gm in 125 ml
alcohol: soluble 1 gm in 52 ml (Boiling)

assay

99.0-100.5%

form

solid

quality

meets analytical specification of FCC, E251

impurities

residual solvents, complies
≤0.02% total halogen compounds (as Cl)

pH

5-7 (20 °C, 5%)

mp

306 °C (dec.) (lit.)

solubility

H2O: soluble 1 gm in 0.6 ml (Boiling)
H2O: soluble 1 gm in 1.1 ml
alcohol: soluble 1 gm in 125 ml
alcohol: soluble 1 gm in 52 ml (Boiling)

anion traces

chloride (Cl-): ≤10 mg/kg
nitrite (NO2-): ≤10 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤2 mg/kg
Ca: ≤50 mg/kg
Cu: ≤10 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤100 mg/kg
Mg: ≤20 mg/kg
Pb: ≤4 mg/kg
Zn: ≤10 mg/kg

SMILES string

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

InChI

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

InChI key

VWDWKYIASSYTQR-UHFFFAOYSA-N

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Application

Sodium nitrate has been used as a test compound for estimating the NO production by assessing the concentration of nitrate and nitrite in the media.[1] It has also been used for measuring the nitrite content in saliva.[2]

Biochem/physiol Actions

Sodium nitrate reduces the chloride and sodium reabsorption in the distal nephron.[3]

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_germany

WGK 1

flash_point_f

does not flash

flash_point_c

does not flash

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HåKan Björne H et al.
The Journal of clinical investigation, 113(1), 106-114 (2004-01-01)
Salivary nitrate from dietary or endogenous sources is reduced to nitrite by oral bacteria. In the acidic stomach, nitrite is further reduced to NO and related compounds, which have potential biological activity. We used an in vivo rat model as
Sang-Jin Shin et al.
Journal of applied physiology (Bethesda, Md. : 1985), 95(1), 308-313 (2003-04-01)
The meniscus is an intra-articular fibrocartilaginous structure that serves essential biomechanical roles in the knee. With injury or arthritis, the meniscus may be exposed to significant changes in its biochemical and biomechanical environments that likely contribute to the progression of
T Kahn et al.
The American journal of physiology, 229(3), 746-753 (1975-09-01)
Effects of sodium nitrate were compared with sodium chloride loading on transport of electrolytes by the nephron. Maximal levels of free water clearance/clomerular filtration rate (CH2O/GFR) averaged 8.4% with nitrate loading and 14.4% with saline loading. Since ethacrynic acid and
Suna Choi et al.
Journal of controlled release : official journal of the Controlled Release Society, 131(1), 70-76 (2008-08-12)
One of the most important requirements for non-viral gene delivery systems is the ability to mediate high levels of gene expression with low toxicity. After the DNA/vector complexes are taken up by cells through endocytosis, DNA is typically contained within
Daryoush Afzali et al.
Journal of chromatography. A, 1247, 35-41 (2012-06-08)
In the present study, a new approach which uses immunoaffinity column clean-up combined with dispersive liquid-liquid microextraction (DLLME) is proposed for the preconcentration of ultra trace amounts of aflatoxins (B₁, B₂, G₁ and G₂). The aflatoxins are then determined using
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