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222003

Sigma-Aldrich

Sodium phosphate tribasic dodecahydrate

ACS reagent, ≥98%

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
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

Assay

≥98%

form

crystals or chunks

impurities

≤0.01% insolubles

pH

13 (25 °C, 190.1 g/L)

density

1.62 g/mL at 25 °C

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.01%

cation traces

Fe: ≤0.001%
excess alkali (as NaOH): ≤2.5%
heavy metals (as Pb): ≤0.001%

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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Application

Sodium phosphate tribasic dodecahydrate may be used in the following processes:
  • Fabrication of chitosan membranes for use as the polymer electrolyte in a direct borohydride fuel cell (DBFC).
  • Synthesis of hierarchical silver phosphate microcrystals with photocatalytic activity via template-free method.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Evaluation of multivalent phosphate cross-linked chitosan biopolymer membrane for direct borohydride fuel cells
Ma J, et al
Journal of Power Sources, 202, 18-27 (2012)
Template-free and eco-friendly synthesis of hierarchical Ag3PO4 microcrystals with sharp corners and edges for enhanced photocatalytic activity under visible light
Kumar S, et al
Materials Letters, 123, 172-175 (2014)
Cloud point phenomenon in amphiphilic drug solutions.
Kim EJ and Shah DO.
Langmuir, 18(26), 10105-10108 (2002)
Milne GWA.
Gardner's Commercially Important Chemicals: Synonyms, Trade Names, and Properties, 573-573 (2005)
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

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