Skip to Content
Merck
CN

238503

Sodium tripolyphosphate

technical grade, 85%

Synonym(s):

Pentasodium tripolyphosphate Anhydrous, STPP, Sodium triphosphate, Sodium triphosphate pentabasic, Sodium tripolyphosphate pentabasic

Sign In to View Organizational & Contract Pricing

Select a Size

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:
329752508
NACRES:
NA.55
Assay:
85%
Grade:
technical grade
Form:
powder

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

technical grade

Quality Level

100

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000486443
0000486443
0000482453
0000482453
0000438853

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Monireh Rasoulzadehzali et al.
International journal of biological macromolecules, 116, 54-63 (2018-05-01)
The present project describes the facile preparation of novel pH-sensitive bio-nanocomposite hydrogel beads based on chitosan (CH) and GO-Ag nanohybrid particles for controlled release of anti-cancer drugs such as doxorubicin (DOX). The loading efficiency of doxorubicin into test beads was
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
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)
Veronica Martinez-Rios et al.
Food microbiology, 84, 103255-103255 (2019-08-20)
The aim of this study was to develop and validate a growth and growth boundary model with terms for melting salts to predict growth of Listeria monocytogenes in spreadable processed cheese. Cardinal parameter terms for phosphate salts and citric acid
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service