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Merck

795496

Potassium phosphate dibasic

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

동의어(들):

Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate

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제품정보 (DICE 배송 시 비용 별도)

Linear Formula:
K2HPO4
CAS 번호:
Molecular Weight:
174.18
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-834-5
MDL number:
Assay:
≥98%
Grade:
ACS reagent, anhydrous
Form:
powder
Solubility:
water: soluble
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Quality Level

grade

ACS reagent, anhydrous

agency

suitable for SM 5210

product line

Redi-Dri

assay

≥98%

form

powder

quality

free-flowing

impurities

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

loss

≤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)

solubility

water: soluble

anion traces

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

cation traces

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

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

General description

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.

Features and Benefits

  • 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

Legal Information

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


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저장 등급

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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시험 성적서(COA)

Lot/Batch Number

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문서

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

관련 콘텐츠

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.


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



국제 무역 품목 번호

SKUGTIN
795496-500G04061832961057
795496-100G04061832958231
795496-1KG04061832958293
795496-2.5KG04061832961040