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04269

Sigma-Aldrich

Phosphate de sodium monobasique dihydrate

98-100.5% (calc. to the dried substance), meets analytical specification of Ph. Eur., BP, USP, FCC, E 339

Synonyme(s) :

Dihydrogénophosphate de sodium dihydrate

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About This Item

Formule linéaire :
NaH2PO4 · 2H2O
Numéro CAS:
13472-35-0
Poids moléculaire :
156.01
Numéro CE :
231-449-2
Numéro MDL:
MFCD00149209
Code UNSPSC :
12161700
ID de substance PubChem :
329747903
Nomenclature NACRES :
NA.25

Pureté

98-100.5% (calc. to the dried substance)

Forme

powder or crystals

Qualité

meets analytical specification of Ph. Eur., BP, USP, FCC, E 339

Impuretés

heavy metals (as Pb), complies
 organic volatile impurities, complies
 reducing matter, complies
 related substances, complies
 residual solvents, complies
≤0.2% water-insoluble matter

Perte

21.5-24.0% loss on drying, 130 °C

pH

4.1-5.0 (20 °C, 1%)
4.2-4.5 (20 °C, 5%)

Traces d'anions

chloride (Cl-): ≤50 mg/kg
fluoride (F-): ≤10 mg/kg
sulfate (SO42-): ≤200 mg/kg

Traces de cations

Al:, in accordance
As: ≤1 mg/kg
Ca: ≤20 mg/kg
Ca:, in accordance
Cd: ≤1 mg/kg
Cu: ≤10 mg/kg
Fe: ≤5 mg/kg
Hg: ≤1 mg/kg
Mg: ≤20 mg/kg
Pb: ≤4 mg/kg
Zn: ≤10 mg/kg

Adéquation

complies for appearance of solution

Chaîne SMILES 

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

InChI

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

Clé InChI

VBJGJHBYWREJQD-UHFFFAOYSA-M

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Catégories apparentées

Application

Sodium phosphate monobasic dihydrate has been used for preparing phosphate buffer solution. It has also been used as a mobile phase for high-performance liquid chromatography.

Actions biochimiques/physiologiques

Sodium phosphate monobasic also referred to as sodium dihydrogen phosphate is a chemical reagent possesses high buffering capacity and is used for preparing biological buffers. It was used as a phosphate supplement for determining whether phosphate supplementation can prevent rickets in very low birth weight infants with prenatal deficiency of phosphate.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Funian Zhao et al.
Journal of chromatography. A, 1055(1-2), 109-114 (2004-11-25)
A method has been developed to analyze residual tetracyclines (TCs) (oxytetracycline (OTC), tetracycline (TC), chlortetracycline (CTC), methacycline (MTC), doxycycline (DC)) in ovine milk, using high-performance liquid chromatography (HPLC) with a coulometric electrode array system. The samples were pretreated, using liquid-liquid
P C Holland et al.
Lancet (London, England), 335(8691), 697-701 (1990-03-24)
A preliminary study showed that placental histology was abnormal for babies who subsequently had rickets. The findings--low plasma phosphate concentration; maximum percentage tubular reabsorption of phosphate; and high urinary calcium loss--are those of renal conservation of phosphate in the presence
Eva Bittrich et al.
Biointerphases, 5(4), 159-167 (2011-01-12)
With a coupled spectroscopic ellipsometry-quartz crystal microbalance with dissipation (QCM-D) experimental setup, quantitative information can be obtained about the amount of buffer components (water molecules and ions) coupled to a poly(acrylic acid) (PAA) brush surface in swelling and protein adsorption
L Escuder-Gilabert et al.
Journal of chromatography. A, 1363, 331-337 (2014-07-22)
The design of experiments (DOE) is a good option for rationally limiting the number of experiments required to achieve the enantioresolution (Rs) of a chiral compound in capillary electrophoresis. In some cases, the modeled Rs after DOE analysis can be
Wenhu Zhou et al.
Analytical chemistry, 87(7), 4001-4007 (2015-03-11)
RNA-cleaving DNAzymes provide a unique platform for developing biosensors. However, a majority of the work has been performed in clean buffer solutions, while the activity of some important DNAzymes in biological sample matrices is still under debate. Two RNA-cleaving DNAzymes
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