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795496

Sigma-Aldrich

Phosphate de potassium dibasic

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥98%

Synonyme(s) :

Dipotassium phosphate, Hydrogénophosphate dipotassique, sec.-Phosphate de potassium

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About This Item

Formule linéaire :
K2HPO4
Numéro CAS:
Poids moléculaire :
174.18
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352302
ID de substance PubChem :
Nomenclature NACRES :
NA.21

Qualité

ACS reagent
anhydrous
free-flowing

Niveau de qualité

Agence

suitable for SM 5210

Gamme de produits

Redi-Dri

Pureté

≥98%

Forme

powder

Impuretés

≤0.001% Nitrogen compounds (as N)
≤0.01% Insoluble matter

Perte

≤1.0% loss on drying, 105°C

pH

8.5-9.6 (25 °C, 5% in solution)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

Traces d'anions

chloride (Cl-): ≤0.003%
sulfate (SO42-): ≤0.005%

Traces de cations

Fe: ≤0.001%
Na: ≤0.05%
heavy metals: ≤5 ppm (by ICP-OES)

Chaîne SMILES 

[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

Clé InChI

ZPWVASYFFYYZEW-UHFFFAOYSA-L

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Description générale

Potassium phosphate dibasic is a useful biological buffer having a pH in the range of 8.5–9.6. Potassium phosphate is present in various forms: monobasic (KH2PO4), dibasic (KH2PO4), and tribasic (K3PO4). Potassium phosphate buffers are widely employed in equilibrium dialysis, high performance liquid chromatography (HPLC) and affinity capillary electrophoresis studies.

Application

Potassium phosphate dibasic has been used in the preparation of MMG (maltose, methyl green) medium, phosphate buffered saline and hypotonic solution.

Caractéristiques et avantages

  • Increased efficiency – Eliminate time and effort of loosening hardened powders
  • Safety – Avoid risks of using tools of force to break up clumps
  • Economy – Faster preparation and solvation increase productivity and reduce costs
  • Assured quality – Excellent, expert-tested quality with no anti-caking agents
  • Flexible volumes – Available from research amounts to scale-up quantities

Informations légales

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Consulter la Bibliothèque de documents

Mohammad Karimi et al.
Materials science & engineering. C, Materials for biological applications, 98, 227-240 (2019-03-01)
The aim of this study was to find an optimum dose of the synthetic amorphous calcium phosphate (ACP) nanoparticles to be incorporated in resin-modified glass ionomer cements (RMGICs) for triggering the release of PO43-/Ca2+, alkaline phosphatase (ALP) activity and osteogenic

Articles

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Contenu apparenté

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

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