795410

Fosfato di sodio

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

• Sinonimo/i: sec-fosfato di sodio, Idrogenofosfato di sodio, Sodio fosfato bibasico
• Formula condensata: Na₂HPO₄
• Numero CAS: 7558-79-4
• Peso molecolare: 141.96
• Numero CE: 231-448-7
• Numero MDL: MFCD00003496
• Codice UNSPSC: 12161705
• ID PubChem: 329768481
• NACRES: NA.21

Proprietà

• Grado: ACS reagent; anhydrous
• Livello qualitativo: 100
• agenzia: suitable for EPA 533; suitable for SM 5210
• Nome Commerciale: Redi-Dri^™
• Saggio: ≥99%
• Forma fisica: powder
• Qualità: free-flowing
• Impurezze: ≤0.002% Chloride (Cl); ≤0.01% Insoluble matter
• Perdita: ≤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)
• Anioni in tracce: sulfate (SO₄^2-): ≤0.005%
• Cationi in tracce: Fe: ≤0.002%; heavy metals: ≤0.001% (by ICP-OES)
• Stringa SMILE: [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; BNIILDVGGAEEIG-UHFFFAOYSA-L

Descrizione

Descrizione generale

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.

Applicazioni

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

Caratteristiche e vantaggi

• 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

Note legali

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable