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Documentos Principais

S9390

Sigma-Aldrich

Fosfato de sódio

ACS reagent, 98.0-102.0%

Sinônimo(s):

Fosfato dissódico, Hidrogenofosfato dissódico

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About This Item

Fórmula linear:
Na2HPO4 · 7H2O
Número CAS:
Peso molecular:
268.07
Número CE:
Número MDL:
Código UNSPSC:
12352302
ID de substância PubChem:
NACRES:
NA.21

grau

ACS reagent

Nível de qualidade

densidade de vapor

4.9 (vs air)

Ensaio

98.0-102.0%

Formulário

powder

Impurezas

≤0.005% Insoluble matter

pH

8.7-9.3 (25 °C, 5% in solution)

densidade

1.68 g/mL at 25 °C (lit.)

traços de ânion

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

traços de cátion

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

cadeia de caracteres 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

chave InChI

PYLIXCKOHOHGKQ-UHFFFAOYSA-L

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Descrição geral

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.

Aplicação

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.

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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