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Sodium Tripolyphosphate
CAS: Anhydrous CAS 7758-29-4
CAS: Hexahydrate 15091-98-2
Molecular Formula: Na5P3O10 Anhydrous and Na5P3O10-6H2O Hexahydrate
Molecular Weight: 367.86 Anhydrous and 475.96 Hexahydrate
Sodium Tripolyphosphate
General Properties and Specifications of Sodium triphosphate or STPP or Sodium tripolyphosphate or Pentasodium tripolyphosphate Anhydrous:
Description: Free flowing white powder or crystals without any visible contamination.
P2O5 Content: 57% to 58%
Solubility: Soluble in water.
Relative density: 2.52
Melting point: 622C
Clarity and color of solution: Colorless to slight turbidity
pH: 9.2-10.0 for 1% solution.
Cl: 100 microg/g maximum.
SO4: 10 microg/g maximum.
Pb: 4 microg/g maximum.
As: 0.75 microg/g maximum.
Loss on drying: 0.5% at 120C for 2 hours.
Specifications of Sodium Tripolyphosphate FCC Food Grade:
Pentasodium Triphosphate; Triphosphate; Sodium Triphosphate
Na5P3O10 Formula weight, anhydrous 367.86
Na5P3O10·6H2O Formula weight, hexahydrate 475.96
INS: 451(i) CAS: anhydrous 7758-29-4
CAS: hexahydrate 15091-98-2
DESCRIPTION
Sodium Tripolyphosphate occurs as white, slightly hygroscopic granules, or as a powder. It is anhydrous or contains six molecules of water of hydration. It is freely soluble in water, but insoluble in alcohol. The pH of a 1:100 aqueous solution is about 9.5
Function: Emulsifier; sequestrant.
REQUIREMENTS
Identification
A. A 1:20 aqueous solution gives positive tests for Sodium>
B. Add a few drops of silver nitrate to 1 mL of a 1:100 aqueous solution. A white precipitate forms that is soluble in 1.7 N nitric acid.
Assay: Anhydrous: Not less than 85.0% of Na5P3O10; Hexahydrate: Not less than 65.0% of Na5P3O10.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.005%.
Insoluble Substances: Not more than 0.1%.
Lead: Not more than 2 mg/kg.
Please visit SDS Safety Data Sheet of Sodium Tripolyphosphate Suppliers.
American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.
Suppliers and Manufacturers' Representative:
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Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
Email: info@ammol.org