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1.05065

Supelco

Potassium nitrate

99.995 Suprapur®

Synonym(s):
Potassium nitrate, Nitric acid potassium salt
Empirical Formula (Hill Notation):
KNO3
CAS Number:
Molecular Weight:
101.10
MDL number:
EC Index Number:
231-818-8

grade

for inorganic trace analysis

Quality Level

assay

99.995%

potency

3015 mg/kg LD50, oral (Rat)

pH

5.0-7.5 (20 °C, 50 g/L in H2O)

mp

334 °C

solubility

320 g/L

bulk density

800 kg/m3

storage temp.

2-30°C

InChI

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

InChI key

FGIUAXJPYTZDNR-UHFFFAOYSA-N

Related Categories

Analysis Note

Purity (metallic): ≥ 99.995 %
Assay (acidimetric): ≥ 99.0 %
Chloride (Cl): ≤ 5 ppm
Sulfate (SO₄): ≤ 30 ppm
Al (Aluminium): ≤ 0.05 ppm
Ba (Barium): ≤ 1.0 ppm
Ca (Calcium): ≤ 0.1 ppm
Cd (Cadmium): ≤ 0.005 ppm
Ce (Cerium): ≤ 0.005 ppm
Co (Cobalt): ≤ 0.005 ppm
Cr (Chromium): ≤ 0.005 ppm
Cs (Cesium): ≤ 5 ppm
Cu (Copper): ≤ 0.005 ppm
Eu (Europium): ≤ 0.005 ppm
Fe (Iron): ≤ 0.05 ppm
Hg (Mercury): ≤ 0.01 ppm
La (Lanthanum): ≤ 0.005 ppm
Li (Lithium): ≤ 0.2 ppm
Mn (Manganese): ≤ 0.005 ppm
Mg (Magnesium): ≤ 0.10 ppm
Na (Sodium): ≤ 20 ppm
Ni (Nickel): ≤ 0.005 ppm
Pb (Lead): ≤ 0.005 ppm
Rb (Rubidium): ≤ 30 ppm
Sc (Scandium): ≤ 0.005 ppm
Sm (Samarium): ≤ 0.005 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.005 ppm
Y (Yttrium): ≤ 0.005 ppm
Yb (Ytterbium): ≤ 0.005 ppm
Zn (Zinc): ≤ 0.010 ppm

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Flame over circle

Signal Word

Warning

Hazard Statements

Hazard Classifications

Ox. Sol. 3

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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