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Merck
CN

S8639

Sodium phosphate tribasic dodecahydrate

ACS reagent, 98.0-102.0%

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
UNSPSC Code:
12161700
MDL number:
MFCD00149198

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InChI key

ASTWEMOBIXQPPV-UHFFFAOYSA-K

InChI

1S/3Na.H3O4P.12H2O/c;;;1-5(2,3)4;;;;;;;;;;;;/h;;;(H3,1,2,3,4);12*1H2/q3*+1;;;;;;;;;;;;;/p-3

grade

ACS reagent

assay

98.0-102.0%

impurities

≤0.001% Nitrogen compounds (as N), ≤0.01% Insoluble matter, ≤2.5% Excess alkali (as NaOH)

density

1.62 g/mL at 25 °C

anion traces

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

cation traces

Fe: ≤0.001%, heavy metals (as Pb): ≤0.001%

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Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
092H06181
072K0115
059H03431
057H0137
018H0668

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Diego Caccavo et al.
International journal of pharmaceutics, 486(1-2), 144-152 (2015-04-02)
Controlled release by oral administration is mainly achieved by pharmaceuticals based on hydrogels. Once swallowed, a matrix made of hydrogels experiences water up-take, swelling, drug dissolution and diffusion, polymer erosion. The detailed understanding and quantification of such a complex behavior

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