795410

Phosphate de sodium dibasic

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

• Synonyme(s) : Phosphate de sodium secondaire, Hydrogénophosphate de disodium, Hydrogénophosphate de sodium, Phosphate disodique
• Formule linéaire : Na₂HPO₄
• Numéro CAS: 7558-79-4
• Poids moléculaire : 141.96
• Numéro CE : 231-448-7
• Numéro MDL: MFCD00003496
• Code UNSPSC : 12161705
• ID de substance PubChem : 329768481
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent; anhydrous; free-flowing
• Niveau de qualité: 100
• Agence: suitable for EPA 533; suitable for SM 5210
• Gamme de produits: Redi-Dri^™
• Pureté: ≥99%
• Forme: powder
• Impuretés: ≤0.002% Chloride (Cl); ≤0.01% Insoluble matter
• Perte: ≤0.2% loss on drying, 105°C
• pH: 8.7-9.3 (25 °C, 5% in solution)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• Traces d'anions: sulfate (SO₄^2-): ≤0.005%
• Traces de cations: Fe: ≤0.002%; heavy metals: ≤0.001% (by ICP-OES)
• Chaîne SMILES: [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
• Clé InChI: BNIILDVGGAEEIG-UHFFFAOYSA-L

Description

Description générale

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.

Application

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

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.

• 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

Informations sur la sécurité

• 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