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Merck
CN

72061

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
NACRES:
NA.21
PubChem Substance ID:
329763729
UNSPSC Code:
12352302
EC Number:
231-838-7
MDL number:
MFCD00003514
Assay:
≥98.0% (T)
Form:
powder
Solubility:
water: soluble 148 g/L at 20 °C

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Product Name

Sodium triphosphate pentabasic, purum p.a., ≥98.0% (T)

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

SMILES string

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

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

Quality Level

200

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Application

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

Other Notes

Straight chain phosphates

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP0545
BCCM0410
BCCL3208
BCCF7893
BCCC2990

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Meenakshi Malhotra et al.
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BMC microbiology, 11, 4-4 (2011-01-07)
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Jessica L Adams et al.
Journal of acquired immune deficiency syndromes (1999), 62(3), 260-266 (2012-11-01)
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K Konecsni et al.
Food chemistry, 134(4), 1775-1779 (2013-02-28)
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