PX1570

Potassium phosphate dibasic

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

• Synonym(s): Potassium Hydrogen Phosphate, Dipotassium Phosphate, Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate
• Linear Formula: K₂HPO₄
• CAS Number: 7758-11-4
• Molecular Weight: 174.18
• MDL number: MFCD00011383
• UNSPSC Code: 12352302
• EC Index Number: 231-834-5

Properties

• Agency: meets USP/NF
• Quality Level: 200
• Assay: ≥98.0% (acidimetric)
• form: granular
• impurities: ≤0.01% Insoluble matter
• loss: ≤1.0% loss on drying, 105°C
• color: white
• pH: 9 (20 °C, 10 g/L in H₂O)
• solubility: 1600 g/L
• anion traces: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.005%
• cation traces: Fe: ≤0.001%; N: ≤0.001%; Na: ≤0.05%; heavy metals: ≤5 ppm
• shipped in: ambient
• storage temp.: room temp
• SMILES string: [K+].[K+].OP([O-])([O-])=O
• InChI: 1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChI key: ZPWVASYFFYYZEW-UHFFFAOYSA-L

Description

Application

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

Analysis Note

Assay (acidimetric)98.0% minChloride (Cl)0.003% maxColorWhiteFormGranular powderHeavy Metals (by ICP-OES)5ppm maxInsoluble matter0.01% maxIron (Fe)0.001% maxLoss on drying (105°C)1.0% maxNitrogen compounds (as N)0.001% maxSodium (Na)0.05% maxSulfate (SO4)0.005% maxpH of a 5% solution at 25°C8.5-9.6

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable