Description

Tetrapolyphosphate Hexaammonium is a specialized ammonium polyphosphate salt with significant industrial utility. This compound is valued for its role as a source of both ammonium and condensed phosphate ions in various chemical processes and formulations. It is particularly relevant for manufacturers in the water treatment, flame retardant, and specialty fertilizer sectors seeking consistent, high-purity inorganic reagents. The product is identified by CAS No. 16751-28-3.

Application

• Flame Retardant Synergist: Used in intumescent coatings and polymer formulations to enhance fire resistance.
• Water Treatment Chemical: Acts as a corrosion and scale inhibitor in industrial cooling and boiler water systems.
• Specialty Fertilizer Component: Provides a controlled-release source of nitrogen and phosphorus in advanced agricultural products.
• Ceramic & Binder Precursor: Serves as a binding agent or flux in the production of ceramics and refractory materials.
• Laboratory Reagent: Employed in analytical chemistry and research as a standard or process chemical.
• Paper & Textile Processing Aid: Functions as a dispersant or retention aid in pulp and fabric treatment processes.

Basic Information

Item	Details
Product Name	Tetrapolyphosphate Hexaammonium
CAS No.	16751-28-3
Molecular Formula	H24N6O13P4
Molecular Weight	546.10 g/mol
Synonyms	Ammonium Tetrapolyphosphate; Hexaammonium Tetrapolyphosphate; Ammonium Polyphosphate (specific grade); APP; (NH4)6P4O13; Condensed Ammonium Phosphate; Inorganic Polyphosphate Salt; Nitrogen-Phosphate Compound
EINECS	240-797-3

Quality Control

Our Tetrapolyphosphate Hexaammonium is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms to standard
Assay (as (NH4)6P4O13)	≥ 98.0 %
P2O5 Content	≥ 51.0 %
N Content	≥ 15.0 %
pH (10% solution)	6.0 - 8.0
Water Solubility	Freely soluble
Loss on Drying	≤ 2.0 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.