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Altri documenti

S9390

Sigma-Aldrich

Fosfato di sodio eptaidrato

ACS reagent, 98.0-102.0%

Sinonimo/i:

Sodio fosfato bibasico, Sodio fosfato bibasico eptaidrato

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About This Item

Formula condensata:
Na2HPO4 · 7H2O
Numero CAS:
7782-85-6
Peso molecolare:
268.07
Numero CE:
237-707-0
Numero MDL:
MFCD00149180
Codice UNSPSC:
12352300
ID PubChem:
329824623
NACRES:
NA.21

Grado

ACS reagent

Livello qualitativo

200

Densità del vapore

4.9 (vs air)

Saggio

98.0-102.0%

Forma fisica

powder

Impurezze

≤0.005% Insoluble matter

pH

8.7-9.3 (25 °C, 5% in solution)

Densità

1.68 g/mL at 25 °C (lit.)

Anioni in tracce

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

Cationi in tracce

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

Stringa SMILE

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
PYLIXCKOHOHGKQ-UHFFFAOYSA-L

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Categorie correlate

Descrizione generale

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.

Applicazioni

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.

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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Sigma-Aldrich

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SAFC

1.06574

Sodio fosfato bibasico eptaidrato

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