Potassium 19 K 39.0983

Potassium Phosphate Monobasic ACS Powder

Jost Code: 2669

Synonyms: Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate

Potassium Phosphate can be used as a laboratory reagent and as a buffering agent. Product specifications, SDSs and certifications are available under Additional Information.

Chemical Formula
KH2PO4
CAS Number
7778-77-0
Molecular Weight
136.1
Use
Laboratory Reagent or buffer
Description
White powder
Containers
55 lb/25 kg large carton; inner liner is Tyvek with desiccants
Storage
Store in a clean, dry warehouse in the original unopened containers.
Revision Date
07/15/2021
Assay
99.0% minimum
pH (5%)
4.1 - 4.5
Insoluble Matter
0.01% maximum
LOD
0.2% maximum
Chloride
0.001% maximum
Sulfate
0.003% maximum
Heavy Metals
10 ppm maximum
Iron
0.002% maximum
Sodium
50 ppm maximum
Lead
0.1 ppm maximum
Particle Size
Mesh Thru 40
100% minimum
Microbial Test Results
Aerobic Plate Count
1000 cfu/g maximum
Yeast and Mold Count
100 cfu/g maximum
Total Coliforms
Negative