Description

Phosphoric Acid, Anhydride With Boric Acid (1:3), Zinc Salt (1:3) CAS NO 84332-91-2 is a specialized inorganic coordination compound, functioning as a zinc borophosphate. This material is valued for its role as a multifunctional additive, offering synergistic properties derived from its zinc, boron, and phosphate components. It is primarily sought by manufacturers in the polymer, ceramic, and coatings industries seeking to enhance flame retardancy, corrosion inhibition, and thermal stability in their formulations.

Application

• Flame Retardant Synergist in plastics, rubber, and textiles, enhancing the efficacy of primary retardants.
• Corrosion Inhibiting Pigment in primer coatings for metals, providing long-term protective passivation.
• Ceramic Glaze Component to modify thermal expansion and improve surface hardness and durability.
• Smoke Suppressant in halogen-free flame retardant systems for wire and cable applications.
• Stabilizer and Cross-linking Agent in certain elastomer and adhesive formulations.
• Wood Treatment Additive to impart fire resistance and fungal decay protection.

Basic Information

Product Name	Phosphoric Acid, Anhydride With Boric Acid (1:3), Zinc Salt (1:3)
CAS No.	84332-91-2
Molecular Formula	B3O9P3Zn3 (Representative)
Molecular Weight	Contact for details
Synonyms	Zinc Borophosphate; Zinc Boron Phosphate; Boron Zinc Phosphate; Flame Retardant ZBP; Zinc Polyborophosphate; Triboron Triphosphate Tris(zinc salt); 2,4,6-Trioxa-1,3,5,7-tetraboratricyclo[3.3.1.13,7]tetraphosphoric acid, zinc salt (1:3)
EINECS	Contact for details

Quality Control

Our production of Zinc Borophosphate adheres to a strict quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed for key parameters including zinc content, boron content, phosphate content, and particle size distribution. Certificates of Analysis (COA) documenting these results are provided with every shipment. We support customer audits and can tailor specifications to meet specific regulatory or performance requirements.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect flow properties and performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Zinc (Zn) Content	Contact for details
Boron (B) Content	Contact for details
Phosphate (P2O5) Content	Contact for details
Loss on Drying	≤ 2.0%
Particle Size (D50)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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