238503
Sodium tripolyphosphate
technical grade, 85%
Synonym(s):
Pentasodium tripolyphosphate Anhydrous, STPP, Sodium triphosphate, Sodium triphosphate pentabasic, Sodium tripolyphosphate pentabasic
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About This Item
Linear Formula:
Na5P3O10
CAS Number:
Molecular Weight:
367.86
NACRES:
NA.55
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-838-7
MDL number:
Assay:
85%
Grade:
technical grade
Form:
powder
grade
technical grade
Quality Level
assay
85%
form
powder
pH
9.5-10.3 (1 g/L)
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
General description
Sodium tripolyphosphate (STPP) is widely employed as a deflocculant. The major applications of STPP as laundry detergents and cleansing agents. STPP provides benefits such as pH buffering, soil emulsification and hard water sequestration for effective surfactant performance.
Application
Sodium tripolyphosphate is used:
- As a corrosion inhibitor for steel.
- In the preparation of chitosan nanoparticles (CSNPs) by ionic gelation.
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Ultrastructural, Morphological, and Antifungal Properties of Micro and Nanoparticles of Chitosan Crosslinked with Sodium Tripolyphosphate.
Cota-Arriola O, et al.
Journal of Polymers and the Environment, 21(4), 971-980 (2013)
Sodium tripolyphosphate and polyphosphate as dispersing agents for kaolin suspensions: rheological characterization.
Papo A, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 201(1), 219-230 (2002)
Ming-Hui Yang et al.
International journal of molecular sciences, 16(1), 1657-1676 (2015-01-15)
Silk fibroin (SF) is a protein with bulky hydrophobic domains and can be easily purified as sericin-free silk-based biomaterial. Silk fibroin modified chitosan nanoparticle (SF-CSNP), a biocompatible material, has been widely used as a potential drug delivery system. Our current