71496

Sodium phosphate monobasic

purum p.a., anhydrous, ≥99.0% (T)

• Synonym(s): Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate
• Linear Formula: NaH₂PO₄
• CAS Number: 7558-80-7
• Molecular Weight: 119.98
• EC Number: 231-449-2
• MDL number: MFCD00003527
• UNSPSC Code: 12161700
• eCl@ss: 38070208
• PubChem Substance ID: 329763329
• NACRES: NA.25

Properties

• grade: anhydrous; purum p.a.
• Quality Level: 200
• assay: ≥99.0% (T)
• form: crystals
• pH: 4.0-4.5 (25 °C, 50 mg/mL in H₂O)
• solubility: water: 0.5 g/10 mL, clear, colorless
• anion traces: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤500 mg/kg
• cation traces: Ca: ≤200 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤300 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• application(s): sample preparation
• SMILES string: [Na+].OP(O)([O-])=O
• InChI: 1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
• InChI key: AJPJDKMHJJGVTQ-UHFFFAOYSA-M

Description

General description

Sodium phosphate monobasic is an effective oral osmotic laxative at minimal concentration. It is used for colonic cleansing before endoscopic examination of colon.

Application

Sodium phosphate monobasic has been used:

• as an inorganic phosphate source in cell culture media.
• in preparation of phosphate buffered saline.
• in preparation of phosphate buffer in glucose assay.

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)