Accéder au contenu
Merck
Toutes les photos(1)

Principaux documents

71640

Sigma-Aldrich

Phosphate de sodium dibasic

puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)

Synonyme(s) :

Phosphate de sodium secondaire, Hydrogénophosphate de disodium, Hydrogénophosphate de sodium, Phosphate disodique

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme


About This Item

Formule linéaire :
Na2HPO4
Numéro CAS:
Poids moléculaire :
141.96
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352300
eCl@ss :
38070211
ID de substance PubChem :
Nomenclature NACRES :
NA.21

Le tarif et la disponibilité ne sont pas disponibles actuellement.

Qualité

ACS reagent
puriss. p.a.

Niveau de qualité

Essai

≥99.0% (T)

Forme

powder (or crystals)

Impuretés

≤0.001% total nitrogen (N)

Perte

≤0.2% loss on drying, 105 °C

pH

8.7-9.3 (25 °C, 50 mg/mL in H2O)

pKa (25 °C)

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

Traces d'anions

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

Traces de cations

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤0.001% (by ICP-OES)

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Comparer avec des articles similaires

Voir la comparaison complète

Montrer les différences

1 of 4

Cet article
HS120657HS120656BAF367381000
material

black , polystyrene

material

polystyrene , white

material

polystyrene , white

material

stainless steel

manufacturer/tradename

Heathrow Scientific 120679

manufacturer/tradename

Heathrow Scientific 120657

manufacturer/tradename

Heathrow Scientific 120656

manufacturer/tradename

Bel-Art F36738-1000

packaging

pack of 100 ea

packaging

pack of 100 ea

packaging

pack of 100 ea

packaging

pack of 1 ea

size

large

size

small

size

large

size

-

sterility

sterile; electron beam irradiated

sterility

non-sterile

sterility

non-sterile

sterility

-

L × W × H

127 mm × 88.9 mm × 0.5 mm

L × W × H

127 mm × 63.5 mm × 0.5 mm

L × W × H

127 mm × 88.9 mm × 0.5 mm

L × W × H

-

Description générale

Sodium phosphate dibasic is a sodium salt of phosphoric acid. It is highly hygroscopic and water-soluble compound used as a texturizer, emulsifier, and buffer. It can also be used as a reagent in water softeners, cleaners, and boiler treatments process.
Sodium phosphate is widely used buffer in molecular biology, biochemistry, and chromatographic studies. It exists in three forms: monobasic (NaH2PO4), dibasic (Na2HPO4), and tribasic (Na3PO4). Monobasic and dibasic forms in varying ratios are commonly used to compose the neutral sodium phosphate buffer solution.

Application

Sodium phosphate dibasic can be used:
  • As an efficient and low-cost catalyst for the synthesis of 2-aminochrome by the reaction between aromatic aldehyde, malononitrile, and α- or β-naphthol under solvent-free conditions.
  • As a buffer in the synthesis of cyclic, acyclic enones and α, β-unsaturated aldehydes from trimethylsilyl enol ethers by using palladium as a catalyst and oxone as oxidant.
  • As an efficient catalyst in the synthesis of 3,4-dihydropyrano[3,2-c] chromenes from aldehydes, malononitrile and 4-hydroxycoumarin.
  • As a phosphorous precursor with the phosphoric acid in the synthesis of hydroxyapatite by precipitation method using anionic surfactant SDS (sodium dodefcyl sulfate).

Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


  • Faites votre choix parmi les versions les plus récentes :

    Certificats d'analyse (COA)

    Lot/Batch Number

    Vous ne trouvez pas la bonne version ?

    Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

    Déjà en possession de ce produit ?

    Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

    Consulter la Bibliothèque de documents

    What is hemoglobin A1c? An analysis of glycated hemoglobins by electrospray ionization mass spectrometry.
    Peterson KP, et al.
    Clinical Chemistry, 44(9), 1951-1958 (1998)
    In vitro Studies: Inhibition of Nevirapine Metabolism by Nortriptyline in Hepatic Microsomes.
    Usach I and PerisJE.
    Bio-protocol, 5(19) (2015)
    Y C Chang et al.
    Molecular and cellular biology, 14(7), 4912-4919 (1994-07-01)
    Capsule formation plays a significant role in the pathogenicity of Cryptococcus neoformans. To study the molecular basis of capsule synthesis, the capsule-deficient phenotype of a mutant strain was complemented by transformation. A plasmid rescued from the resulting Cap+ transformant complemented
    Levon Manukyan et al.
    Biomedicines, 8(4) (2020-04-01)
    Coagulation Factor IX-rich protrhombin complex concentrate (FIX-PCC) is a therapeutic biologic product that consists of a mixture of several human plasma-derived proteins, useful for treating hemophilia B. Due to its complex composition, FIX-PCC is very challenging to bioprocess through virus
    Kaisorn L Chaichana et al.
    Journal of neuroscience methods, 180(1), 116-125 (2009-05-12)
    The discoveries of neural (NSCs) and brain tumor stem cells (BTSCs) in the adult human brain and in brain tumors, respectively, have led to a new era in neuroscience research. These cells represent novel approaches to studying normal phenomena such

    Protocoles

    This application illustrate how Rutin can be determined in skin cream samples using a monolithic Chromolith® HighResolution RP-18 endcapped column with UV detection.

    Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

    Contacter notre Service technique