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795410

Sigma-Aldrich

Natriumphosphat

anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%

Synonym(e):

sec-Natriumphosphat, Dinatriumphosphat, Natriumhydrogenphosphat, di-Natriumhydrogenphosphat

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About This Item

Lineare Formel:
Na2HPO4
CAS-Nummer:
7558-79-4
Molekulargewicht:
141.96
EG-Nummer:
231-448-7
MDL-Nummer:
MFCD00003496
UNSPSC-Code:
12161705
PubChem Substanz-ID:
329768481
NACRES:
NA.21

Qualität

ACS reagent
anhydrous
free-flowing

Qualitätsniveau

100

Agentur

suitable for EPA 533
suitable for SM 5210

Produktlinie

Redi-Dri™

Assay

≥99%

Form

powder

Verunreinigungen

≤0.002% Chloride (Cl)
≤0.01% Insoluble matter

Verlust

≤0.2% loss on drying, 105°C

pH-Wert

8.7-9.3 (25 °C, 5% in solution)

pKa (25 °C)

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

Anionenspuren

sulfate (SO42-): ≤0.005%

Kationenspuren

Fe: ≤0.002%
heavy metals: ≤0.001% (by ICP-OES)

SMILES String

[Na+].[Na+].[H]OP([O-])([O-])=O

InChI

1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

InChIKey

BNIILDVGGAEEIG-UHFFFAOYSA-L

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Allgemeine Beschreibung

Redi-Dri™ technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri™ ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri™ saves you time, energy and money by keeping your salts usable for longer!
Sodium phosphate dibasic is an inorganic salt with the chemical formula Na2HPO4. Sodium phosphate dibasic is highly soluble in water but insoluble in ethanol. It is used as a sequestering agent, buffering agent, pH regulator and saline laxative.

Anwendung

Sodium phosphate dibasic can be used as a buffer in the reverse phase HPLC method.

Leistungsmerkmale und Vorteile

  • 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.

  • 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

Rechtliche Hinweise

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

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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