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S9390

Sigma-Aldrich

Phosphate de sodium dibasic heptahydraté

ACS reagent, 98.0-102.0%

Synonyme(s) :

Hydrogénophosphate de disodium heptahydraté, Phosphate disodique

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About This Item

Formule linéaire :
Na2HPO4 · 7H2O
Numéro CAS:
7782-85-6
Poids moléculaire :
268.07
Numéro CE :
237-707-0
Numéro MDL:
MFCD00149180
Code UNSPSC :
12352302
ID de substance PubChem :
329824623
Nomenclature NACRES :
NA.21

Qualité

ACS reagent

Niveau de qualité

200

Densité de vapeur

4.9 (vs air)

Pureté

98.0-102.0%

Forme

powder

Impuretés

≤0.005% Insoluble matter

pH

8.7-9.3 (25 °C, 5% in solution)

Densité

1.68 g/mL at 25 °C (lit.)

Traces d'anions

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

Traces de cations

Fe: ≤0.001%
heavy metals: ≤0.001% (by ICP)

Chaîne SMILES 

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

InChI

1S/2Na.H3O4P.7H2O/c;;1-5(2,3)4;;;;;;;/h;;(H3,1,2,3,4);7*1H2/q2*+1;;;;;;;;/p-2

Clé InChI

PYLIXCKOHOHGKQ-UHFFFAOYSA-L

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Description générale

Sodium phosphate dibasic heptahydrate is a hydrated form of disodium phosphate (DSP) or disodium hydrogen orthophosphate. DSP is widely used as a pH regulator and saline laxative.

Application

A mixture of sodium phosphate dibasic heptahydrate, potassium phosphate monobasic, and NaCl in deionized water is used for the preparation of phosphate-buffered saline (PBS, pH 7.4). PBS is used as a buffer solution in biological research to keep the pH constant.

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

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Irina Petrova et al.
Scientific reports, 9(1), 8745-8745 (2019-06-21)
Circulating cancer markers are metabolic products found in body fluids of cancer patients, which are specific for a certain type of malignant tumors. Cancer marker detection plays a key role in cancer diagnosis, treatment, and disease monitoring. The growing need
Christian M Schürch et al.
Cell, 182(5), 1341-1359 (2020-08-09)
Antitumoral immunity requires organized, spatially nuanced interactions between components of the immune tumor microenvironment (iTME). Understanding this coordinated behavior in effective versus ineffective tumor control will advance immunotherapies. We re-engineered co-detection by indexing (CODEX) for paraffin-embedded tissue microarrays, enabling simultaneous
Walter Grünberg et al.
The British journal of nutrition, 110(6), 1012-1023 (2013-04-03)
Hypophosphataemia is frequently encountered in dairy cows during early lactation. Although supplementation of P is generally recommended, controversy exists over the suitability of oral P supplementation in animals with decreased or absent rumen motility. Since the effects of transruminal P
Matthew H Crouthamel et al.
Arteriosclerosis, thrombosis, and vascular biology, 33(11), 2625-2632 (2013-08-24)
Elevated serum phosphate has emerged as a major risk factor for vascular calcification. The sodium-dependent phosphate cotransporter, PiT-1, was previously shown to be required for phosphate-induced osteogenic differentiation and calcification of cultured human vascular smooth muscle cells (VSMCs), but its
Francesca Vallese et al.
Nature communications, 11(1), 6069-6069 (2020-11-29)
Membrane contact sites between virtually any known organelle have been documented and, in the last decades, their study received momentum due to their importance for fundamental activities of the cell and for the subtle comprehension of many human diseases. The
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