71283

Ammonium sodium phosphate dibasic tetrahydrate

puriss. p.a., ≥99.0% (NT)

• Synonym(s): sec-Sodium ammonium phosphate, Ammonium sodium hydrogen phosphate, Sodium ammonium hydrogen phosphate
• Linear Formula: NaNH₄HPO₄ · 4H₂O
• CAS Number: 7783-13-3
• Molecular Weight: 209.07
• MDL number: MFCD00066970
• UNSPSC Code: 12352300
• PubChem Substance ID: 329763154

Properties

• grade: puriss. p.a.
• Assay: ≥99.0% (NT)
• form: crystals
• solubility: water: soluble(lit.)
• anion traces: chloride (Cl^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Ag: ≤5 mg/kg; Al: ≤5 mg/kg; As: ≤0.5 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤10 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Tl: ≤10 mg/kg; Zn: ≤5 mg/kg
• SMILES string: [NH4+].[Na+].OP([O-])([O-])=O
• InChI: 1S/H3N.Na.H3O4P.4H2O/c;;1-5(2,3)4;;;;/h1H3;;(H3,1,2,3,4);4*1H2/q;+1;;;;;/p-1
• InChI key: IQTQISLCLWJRPM-UHFFFAOYSA-M

Description

General description

Ammonium sodium phosphate dibasic tetrahydrate (Ammonium sodium hydrogen phosphate) is a colorless ammonium salt. On heating, it undergoes decomposition to afford sodium polyphosphate.[1]

Application

Ammonium sodium phosphate dibasic tetrahydrate (Sodium ammonium phosphate tetrahydrate) may be used in the following studies:

• To compose the growth medium during the biocatalytic synthesis of 4-fluorocatechol.[2]
• Preparation of microcosmic salt beads, which are used in qualitative analysis.[1]

Other Notes

Reagent for the decomposition of barium sulfate in phosphate salt beads[3][4]

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable