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Sigma-Aldrich

Sodium phosphate tribasic dodecahydrate

puriss. p.a., ACS reagent, ≥98.0% (T)

Sinónimos:
Trisodium phosphate (tert) dodecahydrate, TSP, Trisodium phosphate dodecahydrate
Fórmula lineal:
Na3PO4 · 12H2O
Número de CAS:
Peso molecular:
380.12
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NB.24

Quality Level

grade

ACS reagent
puriss. p.a.

assay

≥98.0% (T)

form

crystals or chunks

impurities

≤0.001% total nitrogen (N)
≤2.5% free alkali (as NaOH)

pH

13 (25 °C, 190.1 g/L)

density

1.62 g/mL at 25 °C

anion traces

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤1 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: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 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

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General description

Sodium phosphate tribasic dodecahydrate is a hydrated trisodium salt of phosphoric acid. It is widely used in various water treatment methods.

Application

Sodium phosphate tribasic dodecahydrate (SP tribasic dodecahydrate) may be used to compose buffer solutions (pH in the range of 2 to 12) for use in a study. It may be used to prepare 500mM SP (sodium phosphate) buffer solutions for use in cloud point (CP) experiments.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK Germany

WGK 1

Flash Point F

Not applicable

Flash Point C

Not applicable

Certificado de Análisis

Certificado de origen

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