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04276

Sigma-Aldrich

Phosphate de sodium dibasic

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

Synonyme(s) :

Phosphate de sodium secondaire, Hydrogénophosphate de disodium, Hydrogénophosphate de sodium, Phosphate disodique

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About This Item

Formule linéaire :
Na2HPO4
Numéro CAS:
7558-79-4
Poids moléculaire :
141.96
Numéro CE :
231-448-7
Numéro MDL:
MFCD00003496
Code UNSPSC :
12161700
eCl@ss :
38070211
ID de substance PubChem :
329747909
Nomenclature NACRES :
NA.25

Agence

meets analytical specifications of BP
meets analytical specifications of Ph. Eur.
meets analytical specifications of USP

Niveau de qualité

200

Qualité

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

Pureté

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

Forme

powder

Impuretés

reducing matter, complies
 residual solvents, complies
≤0.001% heavy metals (as Pb)
≤0.002% ammonium (NH4)
≤0.2% water-insoluble matter
≤1% NaH2PO4 (calc. to dried subst.)
≤2.0% pyrophosphate (as Na4P2O7)

Perte

≤1% loss on drying, 105°C, 4h
≤1% loss on drying, 130 °C

pH

8.4-9.6 (20 °C, 1%)

pKa (25 °C)

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

Solubilité

H2O: soluble 8 parts
H2O: very soluble (Hot)
alcohol: insoluble

Traces d'anions

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

Traces de cations

As: ≤2 mg/kg
Cd: ≤1 mg/kg
Cu: ≤10 mg/kg
Fe: ≤20 mg/kg
Hg: ≤1 mg/kg
Pb: ≤4 mg/kg
Zn: ≤10 mg/kg

Adéquation

complies for appearance of solution

Chaîne SMILES 

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

InChI

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

Clé InChI

BNIILDVGGAEEIG-UHFFFAOYSA-L

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Application

Sodium phosphate dibasic has been used for preparing phosphate buffer which in turn is utilized in X-gal staining.

Actions biochimiques/physiologiques

Sodium phosphate dibasic is an important component of running buffer of denaturing gel electrophoresis. It induces glomerular calcification as well as other nephrotic syndrome in Sprague-Dawley rats.

Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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Noriko Tsuchiya et al.
Toxicologic pathology, 32(4), 408-412 (2004-06-19)
To elucidate the nephrotoxicity of phosphate, dibasic sodium phosphate solution was given to Sprague-Dawley rats by daily bolus intravenous administration at concentrations of 0, 1, 25, 250, or 360 mM (0, 1, 28, 284, or 408 mg/kg Na2HPO4) for 14
B Duvillié et al.
Endocrinology, 143(4), 1530-1537 (2002-03-19)
The targeted disruption of the two nonallelic insulin genes in mouse was reported previously to result in intrauterine growth retardation, severe diabetes immediately after suckling, and death within 48 h of birth. We have further used these animals to investigate
Noriko Tsuchiya et al.
Toxicologic pathology, 37(3), 270-279 (2009-02-27)
Sprague-Dawley rats received once daily tail-vein injections of 360 mM dibasic sodium phosphate solution at 8 mL/kg for fourteen or twenty-eight days. Clinical examination revealed persistent proteinuria from three days after the first dosing and thereafter severe proteinuria from eight
Samuel Adler et al.
Gastrointestinal endoscopy, 76(6), 1170-1174 (2012-10-03)
Colon capsule endoscopy (CCE) is a noninvasive technique for the detection of colorectal lesions. However, for CCE to be offered as an out-of-clinic procedure, the system needs to automatically alert the patient when to ingest the laxative (booster). We tested
Megan A Rees et al.
Journal of proteome research, 14(1), 120-132 (2014-10-21)
Interactions between a host and a bacterial pathogen are mediated by cross-talk between molecules present on, or secreted by, pathogens and host binding-molecules. Identifying proteins involved at this interface would provide substantial insights into this interaction. Although numerous studies have
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