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S9390

Phosphate de sodium dibasic heptahydraté

Name: Phosphate de sodium dibasic heptahydraté
Brand: SIGALD

ACS reagent, 98.0-102.0%

Synonyme(s) :

Hydrogénophosphate de disodium heptahydraté, Phosphate disodique

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A propos de cet article

Formule linéaire :

Na₂HPO₄ · 7H₂O

Numéro CAS:

7782-85-6

Poids moléculaire :

268.07

NACRES:

NA.21

PubChem Substance ID:

329824623

UNSPSC Code:

12352302

EC Number:

237-707-0

MDL number:

MFCD00149180

Assay:

98.0-102.0%

Grade:

ACS reagent

Form:

powder

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Propriétés

grade

ACS reagent

Quality Level

200

vapor density

4.9 (vs air)

assay

98.0-102.0%

form

powder

impurities

≤0.005% Insoluble matter

pH

8.7-9.3 (25 °C, 5% in solution)

density

1.68 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤0.001%, sulfate (SO₄^2-): ≤0.005%

cation traces

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

SMILES string

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

InChI key

PYLIXCKOHOHGKQ-UHFFFAOYSA-L

Description

General description

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.

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Classe de stockage

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Numéro d'article de commerce international

Référence	GTIN
S9390-100G	04061835349715
S9390-1KG	04061835349722
S9390-500G	04061835349746
S9390-2.5KG	04061836961398