Skip to Content
Merck
CN
All Photos(1)

Documents

Safety Information

PX1520

Supelco

Potassium Nitrate

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

Sign Into View Organizational & Contract Pricing
All Photos(1)
Synonym(s):
Potassium Nitrate, Nitrate of Potash
Empirical Formula (Hill Notation):
KNO3
CAS Number:
7757-79-1
Molecular Weight:
101.10
MDL number:
MFCD00011409
UNSPSC Code:
12352302
EC Index Number:
231-818-8

Agency

meets USP/NF

Quality Level

200

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

InChI

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

InChI key

FGIUAXJPYTZDNR-UHFFFAOYSA-N

Related Categories

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

Pictograms

Flame over circle
GHS03

Signal Word

Warning

Hazard Statements

H272

Hazard Classifications

Ox. Sol. 3

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

新产品

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service