Potassium dihydrogen phosphate solution 1.5 M, sterile-filtered

Supplier: HAMPTON RESEARCH MS

Synonyms: prim.-Potassium phosphateMonopotassiumphosphatePotassium dihydrogen orthophosphatePotassium phosphate monobasicMonobasic Potassium PhosphatePotassium orthophosphate monobasicMonopotassium phosphatePotassium dihydrogenorthophosphate

HR2-553
MSPP-HR2553EA 176.92 USD
MSPP-HR2553
Potassium dihydrogen phosphate solution 1.5 M, sterile-filtered
Potassium dihydrogen phosphate

Crystallization grade potassium phosphate monobasic for formulating screens or for optimization.


  • Sterile filtered


Formulated in type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25 °C, <5 ppb total organic carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (<0.01 ng/ml) and DNase-free (<4 pg/µl).

Formula: KH₂PO₄
MW: 136.09 g/mol
Melting Pt: 252.6 °C (lit.)
MDL Number: MFCD00011401
CAS Number: 7778-77-0
EINECS: 231-913-4
Merck Index: 14,07659

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Specification Test Results

Measured pH Range 3.8 - 4.3 (25 °C)
Measured Conductivity Range 67.7 - 79.1 mS/cm (25 °C)
Measured Refractive Index Range 1.35356 - 1.35459 (20 °C)
Total Impurities, Insoluble Matter Passes Filter Test
Al ≤0.0005%
As ≤0.00001%
Ba ≤0.0005%
Bi ≤0.0005%
Ca ≤0.001%
Cd ≤0.0005%
Cl ≤0.0005%
Co ≤0.0005%
Cr ≤0.0005%
Cu ≤0.0005%
Fe ≤0.0005%
Li ≤0.0005%
Mg ≤0.0005%
Mn ≤0.0005%
Mo ≤0.0005%
N ≤0.001%
Na ≤0.005%
Ni ≤0.0005%
Pb ≤0.0005%
SO₄ ≤0.003%
Sr ≤0.0005%
Zn ≤0.0005%
Purity ≥99.5%
pKa1 2.15 (25 °C)
pka2 6.82 (25 °C)
pka3 12.38 (25 °C)

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