04272

di-Sodium hydrogen phosphate dihydrate

meets analytical specification of Ph. Eur., BP, 98.5-101% (calc. to the dried substance)

• Synonym(s): sec-Sodium phosphate, Disodium hydrogen phosphate dihydrate, Disodium phosphate, Sodium phosphate dibasic dihydrate
• Linear Formula: Na₂HPO₄ · 2H₂O
• CAS Number: 10028-24-7
• Molecular Weight: 177.99
• EC Number: 231-448-7
• MDL number: MFCD00149182
• UNSPSC Code: 12161700
• PubChem Substance ID: 329747906
• NACRES: NA.25

Properties

• Agency: meets analytical specifications of BP; meets analytical specifications of Ph. Eur.
• Assay: 98.5-101% (calc. to the dried substance)
• form: crystals
• quality: meets analytical specification of Ph. Eur., BP
• impurities: reducing matter, complies; residual solvents, complies; ≤0.001% heavy metals (as Pb); ≤1% NaH₂PO₄ (calc. to dried subst.)
• loss: 19.5-21% loss on drying, 130 °C
• pH: 9.0-9.4 (20 °C, 1%)
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: As: ≤2 mg/kg; Fe: ≤10 mg/kg
• suitability: complies for appearance of solution
• 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

Application

Sodium phosphate dibasic dihydrate has been used for isolating DNA and RNA from bacterial samples of human gastrointestinal (GI) tract.

Biochem/physiol Actions

Sodium phosphate dibasic dihydrate is an important component of running buffer of denaturing gel electrophoresis.

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable