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72061

Sigma-Aldrich

Sodium triphosphate pentabasic

purum p.a., ≥98.0% (T)

Synonym(s):

Pentasodium tripolyphosphate, Sodium tripolyphosphate pentabasic

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About This Item

Linear Formula:
Na5P3O10
CAS Number:
7758-29-4
Molecular Weight:
367.86
EC Number:
231-838-7
MDL number:
MFCD00003514
UNSPSC Code:
12352302
PubChem Substance ID:
329763729
NACRES:
NA.21

grade

purum p.a.

Assay

≥98.0% (T)

form

powder

concentration

57-59% (calc. based on P2O5)

pH

9.0-10.0 (25 °C, 1% in H2O)

solubility

water: soluble 148 g/L at 20 °C

anion traces

chloride (Cl-): ≤1000 mg/kg
sulfate (SO42-): ≤500 mg/kg

cation traces

Ca: ≤200 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES string

[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O

InChI

1S/5Na.H5O10P3/c;;;;;1-11(2,3)9-13(7,8)10-12(4,5)6/h;;;;;(H,7,8)(H2,1,2,3)(H2,4,5,6)/q5*+1;/p-5

InChI key

HWGNBUXHKFFFIH-UHFFFAOYSA-I

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Application

for the determination of BSB acc. to DIN 38409-H 51

Other Notes

Straight chain phosphates

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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