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Merck

30435

Fosfato de sodio dibasic dihydrate

puriss. p.a., reag. Ph. Eur., 98.5-101.0% (calc. to the dried substance)

Sinónimos:

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

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Fórmula lineal:
Na2HPO4 · 2H2O
Número CAS:
10028-24-7
Peso molecular:
177.99
NACRES:
NA.21
PubChem Substance ID:
329753513
UNSPSC Code:
12352302
EC Number:
231-448-7
MDL number:
MFCD00149182
Assay:
98.5-101.0% (calc. to the dried substance)
Form:
crystals

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InChI key

KDQPSPMLNJTZAL-UHFFFAOYSA-L

InChI

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

agency

USP/NF, reag. Ph. Eur.

grade

puriss. p.a.

assay

98.5-101.0% (calc. to the dried substance)

form

crystals

impurities

reducing impurities, complies, ≤0.0005% heavy metals (as Pb), ≤0.001% total nitrogen (N), ≤0.5% NaH2PO4 (calc. to dried subst.)

loss

19.5-21.0% loss on drying, 130 °C

pH

9.0-9.2 (20 °C, 5%)

anion traces

chloride (Cl-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤0.5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg

suitability

in accordance for appearance of solution

Quality Level

200

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General description

Sodium phosphate dibasic dihydrate is a highly hygroscopic and water-soluble compound. It is used in water softeners, cleaners also as buffers in particular formulations.

Application

Sodium phosphate dibasic dihydrate is used:
  • In the synthesis of BiOCl/BiPO4 composites from bismuth nitrate pentahydrate and potassium chloride by the microwave-assisted hydrothermal method.
  • To prepare sodium phosphate buffer solution.
  • As a phosphorus source in the synthesis of Mg-doped hydroxyapatite nanoplates.

Clase de almacenamiento

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
BCCP0556
BCCN0154
BCCL2646
BCCK2588
BCCJ6441

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