1.19753

Hydrogénophosphate de sodium dihydraté

buffer substance for chromatography LiChropur^™

• Synonyme(s) : Phosphate de sodium dibasic dihydrate, sec-sodium phosphate, Hydrogénophosphate de disodium dihydrate, Hydrogénophosphate disodique dihydrate, Phosphate disodique
• Formule linéaire : Na₂HPO₄ · 2H₂O
• Numéro CAS: 10028-24-7
• Poids moléculaire : 177.99
• NACRES: NB.21
• EC Index Number: 231-448-7
• UNSPSC Code: 12161703
• MDL number: MFCD00149182
• Assay: ≥99.0% (acidimetric)
• Grade: reagent grade
• Form: solid

Propriétés

• grade: reagent grade
• Quality Segment: 100
• assay: ≥99.0% (acidimetric)
• form: solid
• potency: >2000 mg/kg LD₅₀, oral (Rat)
• technique(s): HPLC: suitable
• pH: 9.0-9.4 (20 °C, 50 g/L in H₂O)
• mp: 92.5 °C (Elimination of water of crystallisation)
• density: 2.1 g/cm³ at 20 °C
• bulk density: 850‑1000 kg/m³
• storage temp.: 2-30°C
• SMILES string: 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
• InChI key: KDQPSPMLNJTZAL-UHFFFAOYSA-L

Description

Analysis Note

Identity: passes test
pH-value (5 %; water): 9.0 - 9.2
Assay (acidimetric): ≥ 99.0 %
Self-absorption (215 nm; 0.2 mol/l; 1 cm; water): ≤ 0.15
Self-absorption (220 nm; 0.2 mol/l; 1 cm; water): ≤ 0.05
Self-absorption (254 nm; 0.2 mol/l; 1 cm; water): ≤ 0.02

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Classe de stockage: 13 - Non Combustible Solids
• Que se passe-t-il ?: WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable