PX1520

Potassium Nitrate

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

• 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

Properties

• 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 (PO₄^3-): ≤5 ppm; sulfate (SO₄^2-): ≤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

Description

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

Safety Information

• Pictograms: GHS03
• Signal Word: Warning
• Hazard Statements: H272
• Precautionary Statements: P210 - P220 - P280 - P370 + P378 - P501
• 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