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PX1520

Potassium Nitrate

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Synonym(s):

Potassium Nitrate, Nitrate of Potash

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About This Item

Empirical Formula (Hill Notation):
KNO3
CAS Number:
7757-79-1
Molecular Weight:
101.10
UNSPSC Code:
12352302
EC Index Number:
231-818-8
MDL number:
MFCD00011409
Assay:
≥99.0%
Grade:
ACS reagent
Form:
crystals
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grade

ACS reagent

Quality Level

200

agency

meets USP/NF

assay

≥99.0%

form

crystals

impurities

≤0.005% Insoluble matter

color

white

pH

5.0-7.5 (20 °C, 50 g/L in H2O)

mp

334 °C

anion traces

chloride (Cl-): ≤0.002%, 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%, Na: ≤0.005%, heavy metals: ≤5 ppm

shipped in

ambient

storage temp.

room temp

SMILES string

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

InChI

1S/K.NO3/c;2-1(3)4/q+1;-1

InChI key

FGIUAXJPYTZDNR-UHFFFAOYSA-N

Application

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Analysis Note

Assay99.0% minCalcium (Ca)0.005% maxChloride (Cl)0.002% maxColorWhiteFormCrystalsHeavy Metals (by ICP-OES)5ppm maxInsoluble matter0.005% maxIodate (IO3)5ppm maxIron (Fe)3ppm maxMagnesium (Mg)0.002% maxNitrite (NO2)0.001% maxPhosphate (PO4)5ppm maxSodium (Na)0.005% maxSulfate (SO4)0.003% maxpH of a 5% solution at 25°C4.5-8.5

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pictograms

Flame over circle
GHS03

signalword

Warning

hcodes

H272

Hazard Classifications

Ox. Sol. 3

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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