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Merck

S7907

Fosfato de sodio dibasic

BioXtra, ≥99.0%

Sinónimos:

Fosfato de sec-sodio, Fosfato de disodio, Hidrogenofosfato de disodio, Hidrogenofosfato de sodio

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Fórmula lineal:
Na2HPO4
Número CAS:
7558-79-4
Peso molecular:
141.96
PubChem Substance ID:
24899769
eCl@ss:
38070211
UNSPSC Code:
12161700
NACRES:
NA.25
EC Number:
231-448-7
MDL number:
MFCD00003496

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Nombre del producto

Fosfato de sodio dibasic, BioXtra, ≥99.0%

InChI key

BNIILDVGGAEEIG-UHFFFAOYSA-L

InChI

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

SMILES string

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

product line

BioXtra

assay

≥99.0%

form

powder or crystals

impurities

≤0.1% Insoluble matter

pH

8.0-11.0 (20 °C, 1 M in H2O)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤0.05%
sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.0005%
Ca: ≤0.002%
Cu: ≤0.0005%
Fe: ≤0.002%
K: ≤0.005%
Mg: ≤0.005%
NH4+: ≤0.05%
Pb: ≤0.001%
Zn: ≤0.0005%

absorption

<0.05 at 260 in H2O at 1 M
<0.05 at 280 in H2O at 1 M

Quality Level

200

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Categorías relacionadas

Application

Sodium phosphate dibasic has been used:
  • as a component of phosphate buffered saline (PBS)
  • as a component of buffer for the preparation of cryopreservation diluent
  • in the preparation of McIlvaine buffer (citrate-phosphate buffer) for toluidine blue staining
  • in the preparation of the S9 mix for the Ames test, and SOS Chromotest
  • in the preparation of calcium deficient hydroxyapatite (CDHA) paste during the fabrication process of the CDHA scaffold

Features and Benefits

  • The BioXtra product line ensures high-quality products for consistent results.
  • High level of assay ( ≥99.0%), indicating its purity.
  • Powder form for easy handling and use.

General description

Sodium phosphate dibasic (NaH2PO4), also known as disodium phosphate, is a commonly used phosphate salt in biochemistry research due to its versatile properties. It is a key component in the preparation of phosphate buffer saline (PBS) and phosphate buffer, a commonly used buffer solution in many biological applications. In addition to its buffer properties, NaH2PO4 is also used as a precipitating agent to form silver orthophosphate (Ag3PO4) powders, making it a valuable tool in many laboratory settings. Disodium phosphate is also a widely used emulsifier in dairy products such as cheese and other foods.

Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
BCCG3093
BCCG2293
BCCG2294
BCCF7510
BCCD9459

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SKUGTIN
S790704053252612343

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