04277

Sodium phosphate tribasic dodecahydrate

≥98%

• Synonym(s): TSP, Trisodium phosphate (tert) dodecahydrate, Trisodium phosphate dodecahydrate
• Linear Formula: Na₃PO₄ · 12H₂O
• CAS Number: 10101-89-0
• Molecular Weight: 380.12
• PubChem Substance ID: 57646747
• UNSPSC Code: 12161700
• NACRES: NA.25
• EC Number: 231-509-8
• MDL number: MFCD00149198
• Assay: ≥98%
• Form: crystalline
• Solubility: boiling water: soluble 1 part, water: soluble 3.5 parts, alcohol: insoluble

Properties

• Quality Segment: 200
• assay: ≥98%
• form: crystalline
• impurities: ≤0.001% heavy metals (as Pb), ≤2.5% free alkali (as NaOH)
• solubility: boiling water: soluble 1 part, water: soluble 3.5 parts, alcohol: insoluble
• density: 1.62 g/mL at 25 °C
• anion traces: chloride (Cl^-): ≤0.01%, sulfate (SO₄^2-): ≤0.01%
• cation traces: As: ≤1 mg/kg, Fe: ≤10 mg/kg
• SMILES string: O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[Na+].[O-]P([O-])([O-])=O
• InChI: 1S/3Na.H3O4P.12H2O/c;;;1-5(2,3)4;;;;;;;;;;;;/h;;;(H3,1,2,3,4);12*1H2/q3*+1;;;;;;;;;;;;;/p-3
• InChI key: ASTWEMOBIXQPPV-UHFFFAOYSA-K

Description

Application

Sodium phosphate tribasic dodecahydrate was used to prepare buffer solution used in the analysis of pyronaridine in human whole blood and plasma by using high-performance liquid chromatography.[1]

Biochem/physiol Actions

Sodium phosphate tribasic also referred to as Trisodium phosphate or TSP is a widely used cleaning agent. Trisodium phosphate disrupts cytoplasmic as well as outer membranes of Salmonella enterica cells and hence prevents the spread of bacteria.[2] Further, it is corrosion inhibitor for iron and inhibits the rate of the anodic iron dissolution reaction in unbuffered solutions.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges