04273

Sodium phosphate dibasic dodecahydrate

meets analytical specification of Ph. Eur., BP, E339, 98.5-102.5% (T)

• Synonym(s): sec-Sodium phosphate, Disodium hydrogen phosphate dodecahydrate, Disodium phosphate, di-Sodium hydrogen phosphate dodecahydrate
• Linear Formula: Na₂HPO₄ · 12H₂O
• CAS Number: 10039-32-4
• Molecular Weight: 358.14
• EC Number: 231-448-7
• MDL number: MFCD00149181
• PubChem Substance ID: 329747907
• NACRES: NA.25

Properties

• Agency: meets analytical specifications of BP; meets analytical specifications of Ph. Eur.
• Quality Level: 200
• assay: 98.5-102.5% (T)
• form: crystals
• quality: meets analytical specification of Ph. Eur., BP, E339
• impurities: reducing matter, complies; residual solvents, complies; ≤0.001% heavy metals (as Pb); ≤1.0% NaH₂PO₄; 57-61% water (Karl Fischer)
• loss: 57-61% loss on drying
• pH: 8.4-9.6 (20 °C, 1%)
• anion traces: chloride (Cl^-): ≤10 mg/kg; fluoride (F^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: As: ≤1 mg/kg; Cd: ≤1 mg/kg; Cu: ≤20 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; K: ≤50 mg/kg; Pb: ≤4 mg/kg; Zn: ≤10 mg/kg
• suitability: complies for appearance of solution
• SMILES string: O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O
• InChI: 1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2
• InChI key: DGLRDKLJZLEJCY-UHFFFAOYSA-L

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable