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Merck
CN

71911

Sodium phosphate tribasic dodecahydrate

puriss. p.a., ACS reagent, ≥98.0% (T)

Synonym(s):

TSP, Trisodium phosphate (tert) dodecahydrate, Trisodium phosphate dodecahydrate

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About This Item

Linear Formula:
Na3PO4 · 12H2O
CAS Number:
Molecular Weight:
380.12
NACRES:
NB.24
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-509-8
MDL number:
Assay:
≥98.0% (T)
Form:
crystals or chunks
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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

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.


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pictograms

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Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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Milne GWA.
Gardner's Commercially Important Chemicals: Synonyms, Trade Names, and Properties, 573-573 (2005)
Cloud point phenomenon in amphiphilic drug solutions.
Kim EJ and Shah DO.
Langmuir, 18(26), 10105-10108 (2002)
Inkyu Park et al.
Biosensors & bioelectronics, 22(9-10), 2065-2070 (2006-10-24)
A microneedle sensor platform with integrated silicon nanowire tip was developed for intracellular biochemical detection. Because of the virtue of miniaturized size and high sensitivity, this sensor has a great potential for studying individual cell or localized bioenvironment by revealing



Global Trade Item Number

SKUGTIN
71911-1KG04061826258842
71911-250G04061832855240