Sodium Phosphate tribasic

Synonym: TSP, Trisodium phosphate (tert) Dodecahydrate, Trisodium phosphate dodecahydrate
CAS Number 10101-89-0 | MDL Number MFCD00149198 | EC Number 231-509-8

Sodium Phosphate tribasic Chemical Structure

Product CodeNA1890
CAS Number10101-89-0
Assay (purity)98+%
Purity methodby elemental analysis
Molecular weight380.12
Appearancewhite crystalline solid
Melting point75C
Boiling point100C(dec.)
Molecular formulaNa3PO4.12H2O
Linear formulaNa3PO4.12H2O

Ereztech manufactures and sells this product in small and bulk volumes. Glass ampules, bottles or metal ampules or bubblers are available for packaging. For additional analytical information or details about purchasing Sodium Phosphate tribasic contact us at

Safety information

Signal wordDANGER
Hazard statementsH314
Precautionary statementsP260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501
In TSCA registryYes

Certificates of analysis (CoA)

If you don’t see the needed lot of Sodium Phosphate tribasic below please contact customer support at

External identifiers for TSP

Pubchem CID61473
IUPAC Nametrisodium;phosphate;dodecahydrate
InchI IdentifierInChI=1S/3Na.H3O4P.12H2O/c;;;1-5(2,3)4;;;;;;;;;;;;/h;;;(H3,1,2,3,4);12*1H2/q3*+1;;;;;;;;;;;;;/p-3

Ereztech synthesizes and sells additional NA-compounds.

To purchase Sodium Phosphate tribasic contact us at