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Documenti fondamentali

71650

Sigma-Aldrich

Fosfato di sodio

puriss. p.a., crystallized, ≥99.0% (T)

Sinonimo/i:

sec-fosfato di sodio, Idrogenofosfato di disodio, Sodio fosfato bibasico

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About This Item

Formula condensata:
Na2HPO4 · 12H2O
Numero CAS:
Peso molecolare:
358.14
Numero CE:
Numero MDL:
Codice UNSPSC:
12161700
ID PubChem:
NACRES:
NA.21

Grado

puriss. p.a.

Livello qualitativo

Saggio

≥99.0% (T)

Stato

crystals

Qualità

crystallized

pH

9.0-9.3 (25 °C, 50 mg/mL in H2O)

Solubilità

water: soluble 35.8 g/L at 20 °C

Anioni in tracce

chloride (Cl-): ≤5 mg/kg
fluoride (F-): ≤5 mg/kg
sulfate (SO42-): ≤50 mg/kg

Cationi in tracce

As: ≤0.5 mg/kg
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

Stringa SMILE

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

InChI

1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2
DGLRDKLJZLEJCY-UHFFFAOYSA-L

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Descrizione generale

Sodium phosphate is a colorless crystalline sodium salt. It is widely used as a 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.

Applicazioni

Sodium phosphate dibasic dodecahydrate may be used to prepare the 0.1M phosphate buffer having pH 7.4.

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


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