trisodium phosphate

• ChemBase ID: 130038
• Molecular Formular: Na3O4P
• Molecular Mass: 163.940671
• Monoisotopic Mass: 163.92272795
• SMILES: [O-]P(=O)([O-])[O-].[Na+].[Na+].[Na+]
• Canonical SMILES: [O-]P(=O)([O-])[O-].[Na+].[Na+].[Na+]
• InChI: InChI=1S/3Na.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3
• InChIKey: RYFMWSXOAZQYPI-UHFFFAOYSA-K

NAMES AND DATABASE IDS

Names

• IUPAC name: trisodium phosphate
• IUPAC Traditional name: trisodium phosphate
• Synonyms: Sodium orthophosphate; Trisodium phosphate; Sodium phosphate; Sodium phosphate, tribasic, anhydrous, tech.; Sodium phosphate tribasic; Trisodium phosphate; Buffer solution HPCE pH 8.0; Sodium phosphate buffer solution; Buffer solution HPCE pH 3.0; Sodium phosphate tribasic; Sodium phosphate dodecahydrate, ACS; Sodium phosphate, tribasic dodecahydrate; Trisodium phosphate dodecahydrate; Sodium phosphate dodecahydrate; 磷酸三钠; 磷酸钠; 磷酸三钠, 无水, tech.; 用于 HPCE 的 pH 8.0 缓冲溶液; 磷酸钠缓冲液 溶液; 用于 HPCE 的 pH 3.0 缓冲溶液; 正磷酸钠; 磷酸钠十二水合物, ACS; 磷酸钠十二水合物

Database IDs

• CAS Number: 10101-89-0; 7601-54-9
• EC Number: 231-509-8
• MDL Number: MFCD00149198; MFCD00003510
• Merck Index: 148662
• PubChem SID: 24888003; 162224323; 24861072; 24845718; 24888005
• PubChem CID: 24243
• CHEBI ID: 37583
• ATC CODE: A06AD17; B05XA09; A06AG01; V10XX01
• CHEMBL: 363100
• Chemspider ID: 22665
• KEGG ID: D09000
• Unique Ingredient Identifier: J9O85FKF29
• Wikipedia Title: Trisodium_phosphate

CALCULATED PROPERTIES

• Acid pKa: 1.7961261
• H Acceptors: 4
• H Donor: 0
• LogD (pH = 5.5): -3.3916447
• LogD (pH = 7.4): -3.9718332
• Log P: -1.0201038
• Molar Refractivity: 11.2868 cm^3
• Polarizability: 5.564544 Å^3
• Polar Surface Area: 86.25 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 1.5 g/100 mL (0 °C) ; 8.8 g/100 mL (25 °C) in water; H2O: slightly soluble; Soluble in water
• Apperance: -100 Mesh Powder; Crystalline; solid
• Melting Point: 1583 °C(lit.); 73.5 °C decomp. (dodecahydrate); 74 °C(lit.); ca 75°C dec.
• Flash Point: Non-flammable
• Density: 1.62; 1.620 g/cm^3 (dodecahydrate)
• pKb: 2.23
• Conductivity: ~2.6 mS/cm at 20 °C; ~5.6 mS/cm at 20 °C
• Fluorescence: λex 200-600 nm; λem 300-800 nm (corresponds); λex 200-600; λem 300-800 nm (corresponds)
• pH: 3.0 (25 °C); 8.0±0.1 (25 °C)

Safety Information

• Storage Warning: Hygroscopic
• RTECS: TC9490000; TC9575000
• European Hazard Symbols: Corrosive (C); Irritant (Xi)
• UN Number: 3262; UN3262
• German water hazard class: 1
• Hazard Class: 8
• Packing Group: 3; III
• Risk Statements: 34; 36/37/38
• Safety Statements: 20-26-36/37/39-45-60; 26; 26-36/37/39-45
• TSCA Listed: 是
• EU Index: Not listed
• GHS Pictograms: GHS05; GHS07
• GHS Signal Word: Danger
• NFPA704:
  

  0

  2

  1
• GHS Hazard statements: H314-H318; H315-H318-H335
• GHS Precautionary statements: P261-P280-P305 + P351 + P338; P280-P305+P351+P338-P309-P310
• Personal Protective Equipment: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges; Eyeshields, Gloves
• RID/ADR: UN 3262 8/PG 3

Product Information

• Purity: ≥94%; ≥97.0%; 96%; 97%; 98.0-102.0%
• Concentration: 100 mM sodium phosphate; 20 mM sodium phosphate
• Grade: for HPCE; puriss.; SAJ first grade
• Suitability: in accordance for HPCE
• Impurities: ≤0.002% heavy metals (as Pb)
• Cation Traces: Fe: ≤20 mg/kg
• Antion Traces: chloride (Cl-): ≤200 mg/kg; sulfate (SO42-): ≤200 mg/kg
• Shelf Life: (limited shelf life, expiry date on the label)
• Loss on Drying: ≤7% loss on ignition, 800 °C
• abs.: UV absorption/200-800 nm in accordance
• Linear Formula: Na3PO4

DETAILS

Sigma Aldrich - 342483

Packaging
2.5 kg in poly bottle
25, 500 g in poly bottle

Sigma Aldrich - 82599

Preparation Note
prepared under clean room conditions and filtered through a 0.2 μm membrane filter

Sigma Aldrich - 82593

Preparation Note
prepared under clean room conditions and filtered through a 0.2 μm membrane filter