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Products > Optimize Reagents > Optimize – Salts > Potassium phosphate dibasic
Potassium phosphate dibasic
Applications
- Crystallization grade Potassium phosphate dibasic for formulating screens or for optimization
Features
- Sterile filtered solution
- 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)
Description
Potassium phosphate dibasic
Synonyms: Dipotassium hydrogenphosphate or Dipotassium phosphate or sec.-Potassium phosphate or di-Potassium hydrogen phosphate anhydrous
K2HPO4
HK2O4P
Mr 174.18
CAS Number [7758-11-4]
EC Number 231-834-5
Merck 14,7658
MDL Number MFCD00011383
PubChem Substance ID 24881849
Purity ≥ 99.0%
pKa1 = 2.15 at 25°C
pka2 = 6.82 at 25°C
pka3 = 12.38 at 25°C
Measured pH Range: 9.5 – 9.8 at 25°C
Measured Conductivity Range: 126.9 – 154.8 mS/cm at 25°C
Measured Refractive Index Range: 1.40735 – 1.40877 at 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 ≤0.005%
Co ≤0.0005%
Cr ≤0.0005%
Cu ≤0.0005%
Fe ≤0.0005%
Li ≤0.0005%
Mg ≤0.0005%
Mn ≤0.0005%
Mo ≤0.0005%
Na ≤0.5%
Ni ≤0.0005%
Pb ≤0.0005%
SO4 ≤0.005%
Sr ≤0.0005%
Zn ≤0.0005%
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CAT NO
HR2-635
NAME
DESCRIPTION
200 mL
PRICE
$93.00
cart quote
Support Material(s)
HR2-635 Potassium phosphate dibasic SDSCertificate Of Analysis
Related Item(S)
- Sodium potassium phosphate (Quik Optimize)
- Quik Screen
References
1. Preliminary crystallographic study of the Fab fragments of two monoclonal anti-2-phenyloxazolone antibodies. Mariuzza, RA; Boulot, G; Guillon, V; Poljak, RJ; Berek, C; Jarvis, JM; Milstein, C. J Biol Chem 260, 10268-10270, 1985.
2. New crystal form of the photosynthetic reaction centre from Rhodobacter sphaeroides of Improved diffraction quality. Buchanan, SK; Fritzsch, G; Ermler, U; Michel, H. J Mol Biol 230, 1311- 1314, 1993.
Hampton Research, first in crystallization since 1991, developing and delivering crystallization and optimization screens, reagents, plates, and other tools for the crystallization of biological macromolecules, including proteins (antibody), peptides (insulin), and nucleic acids (DNA).
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