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S7778

Sigma-Aldrich

Sodium phosphate tribasic dodecahydrate

BioXtra, ≥98.0% (titration)

Synonym(s):

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

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About This Item

Linear Formula:
Na3PO4 · 12H2O
CAS Number:
10101-89-0
Molecular Weight:
380.12
EC Number:
231-509-8
MDL number:
MFCD00149198
UNSPSC Code:
12161700
PubChem Substance ID:
24899764
NACRES:
NA.25

product line

BioXtra

Quality Level

200

assay

≥98.0% (titration)

form

powder

impurities

Insoluble matter, passes filter test
≤3% Free alkali (as NaOH)

pH

~13.0 (20 °C, 0.5 M in water)

solubility

H2O: 0.5 M at 20 °C, clear, colorless

density

1.62 g/mL at 25 °C

anion traces

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.005%

cation traces

Al: ≤0.0005%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

absorption

≤0.023 at 280 in H2O at 0.5 M
≤0.035 at 260 in H2O at 0.5 M

application(s)

diagnostic assay manufacturing

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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pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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