1.06572

tri-Sodium phosphate dodecahydrate

for analysis EMSURE^®

• Synonym(s): tri-Sodium phosphate dodecahydrate, Sodium phosphate tribasic, Trisodium phosphate
• Empirical Formula (Hill Notation): Na₃O₄P · 12H₂O
• CAS Number: 10101-89-0
• Molecular Weight: 380.12
• UNSPSC Code: 12352302
• EC Index Number: 231-509-8
• NACRES: NA.21
• MDL number: MFCD00149198
• Assay: 98.0-102.0% (alkalimetric)
• Form: crystals
• Solubility: 285 g/L

Properties

• Quality Segment: 300
• product line: EMSURE^®
• assay: 98.0-102.0% (alkalimetric)
• form: crystals
• potency: 7400 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.001% Total nitrogen (N), ≤0.01% Insoluble matter, ≤2.5% Free alkali (as NaOH)
• pH: 12 (20 °C, 10 g/L in H₂O)
• mp: 75 °C (Elimination of water of crystallisation)
• solubility: 285 g/L
• density: 1.62 g/cm³ at 20 °C
• bulk density: 950 kg/m³
• anion traces: chloride (Cl^-): ≤0.005%, fluoride (F^-): ≤0.0005%, sulfate (SO₄^2-): ≤0.005%
• cation traces: Fe: ≤0.001%, excess alkali (as NaOH): ≤2.5%, heavy metals (as Pb): ≤0.001%
• storage temp.: 2-30°C
• SMILES string: [Na+].[Na+].[Na+].[P](=O)([O-])([O-])[O-].O.O.O.O.O.O.O.O.O.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

Analysis Note

Assay (alkalimetric): 98.0 - 102.0
Identity: passes test
Insoluble matter: ≤ 0.01 %
Free alkali (as NaOH): ≤ 2.5 %
Chloride (Cl): ≤ 0.005 %
Fluoride (F): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Fe (Iron): ≤ 0.001 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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: 13 - Non Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable