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Sigma-Aldrich

Kaliumnitrat

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99%

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About This Item

Empirische Formel (Hill-System):
KNO3
CAS-Nummer:
7757-79-1
Molekulargewicht:
101.10
EG-Nummer:
231-818-8
MDL-Nummer:
MFCD00011409
UNSPSC-Code:
12352302
PubChem Substanz-ID:
329753710
NACRES:
NB.24

Qualität

ACS reagent
puriss. p.a.

Agentur

USP/NF
reag. ISO
reag. Ph. Eur.

Assay

≥99%

Form

crystalline

Verunreinigungen

≤0.001% ammonium (NH4)
≤0.005% water insolubles

pH-Wert

5.5-7.5 (20 °C, 5%)

mp (Schmelzpunkt)

334 °C (lit.)

Anionenspuren

chloride (Cl-): ≤10 mg/kg
iodate (IO3-): ≤5 mg/kg
nitrite (NO2-): ≤10 mg/kg
phosphate (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤20 mg/kg

Kationenspuren

Ca: ≤10 mg/kg
Cu: ≤5 mg/kg
Fe: ≤2 mg/kg
Mg: ≤20 mg/kg
Na: ≤50 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)

SMILES String

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

InChI

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

InChIKey

FGIUAXJPYTZDNR-UHFFFAOYSA-N

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Allgemeine Beschreibung

Potassium nitrate (KNO3) is a water-soluble inorganic salt that is commonly used as a source of nitrate ions. It is also used as a cocatalyst in various organic transformations.

Anwendung

Potassium nitrate can be used in the following:      
  • KNO3/Al2O3 is used as a base heterogeneous catalyst in the production of biodiesel via transesterification reaction. 
  • KNO3/Br2 catalytic system is used for the aerobic oxidations of sulfides and alcohols.

Piktogramme

Flame over circle
GHS03

Signalwort

Warning

H-Sätze

H272

Gefahreneinstufungen

Ox. Sol. 3

Lagerklassenschlüssel

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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