Skip to Content

Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

Merck
CN
All Photos(2)

Key Documents

View All Documentation

238503

Sigma-Aldrich

Sodium tripolyphosphate

technical grade, 85%

Synonym(s):

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

Sign Into View Organizational & Contract Pricing

Select a Size

4 L
CN¥2,166.96

CN¥2,166.96

Please contact Customer Service for Availability
Request a Bulk Order
All Photos(2)

Select a Size

Change View
4 L
CN¥2,166.96

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
grade:
technical grade
form:
powder

CN¥2,166.96

Please contact Customer Service for Availability
Request a Bulk Order

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

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
114529P3532PX0530
Phenol red (phenolsulfonphthalein) Reag. Ph Eur

159375

Phenol red

Phenol Red ACS reagent

114529

Phenol Red

Phenol Red powder, BioReagent, suitable for cell culture

P3532

Phenol Red

Phenol Red Meets ACS Specifications GR ACS

PX0530

Phenol Red

form

solid

form

powder

form

powder

form

powder

storage temp.

no temp limit

storage temp.

room temp

storage temp.

room temp

storage temp.

10-30°C

assay

98.0-102.0% (bromatometric, calculated on dried substance)

assay

-

assay

-

assay

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

-

mp

>300 °C

mp

-

mp

>300 °C

mp

>300 °C

agency

reag. Ph. Eur.

agency

-

agency

-

agency

-

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

  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    0000438853
    0000438852
    0000438852
    0000438853
    0000285549

    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

    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)
    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
    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