30435

Phosphate de sodium dibasic dihydrate

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

• Synonyme(s) : sec-sodium phosphate, Hydrogénophosphate de disodium dihydrate, Hydrogénophosphate disodique dihydrate, Phosphate disodique
• Formule linéaire : Na₂HPO₄ · 2H₂O
• CAS Number: 10028-24-7
• Poids moléculaire : 177.99
• Numéro CE : 231-448-7
• Numéro MDL: MFCD00149182
• Code UNSPSC : 12352302
• ID de substance PubChem : 329753513
• Nomenclature NACRES : NA.21

Propriétés

• Agence: USP/NF; reag. Ph. Eur.
• Niveau de qualité: 200
• Qualité: puriss. p.a.
• Essai: 98.5-101.0% (calc. to the dried substance)
• Forme: crystals
• Impuretés: reducing impurities, complies; ≤0.0005% heavy metals (as Pb); ≤0.001% total nitrogen (N); ≤0.5% NaH₂PO₄ (calc. to dried subst.)
• Perte: 19.5-21.0% loss on drying, 130 °C
• pH: 9.0-9.2 (20 °C, 5%)
• Traces d'anions: chloride (Cl^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Traces de cations: As: ≤0.5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg
• Adéquation: in accordance for appearance of solution
• Chaîne SMILES: O.O.[Na+].[Na+].OP([O-])([O-])=O
• InChI: 1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2
• Clé InChI: KDQPSPMLNJTZAL-UHFFFAOYSA-L

Description

Description générale

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.

Informations sur la sécurité

• 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