Description

Ammonium Pentaborate Tetrahydrate is an inorganic boron compound with the chemical formula NH4B5O8·4H2O. This material serves as a versatile and efficient source of both boron and ammonium ions for a wide range of industrial processes. It is particularly valued in applications requiring controlled release and flame retardancy. Key industries that utilize this compound include glass and ceramics manufacturing, wood treatment, and specialty chemical synthesis.

Application

• Flame Retardants: Used as an effective component in flame-retardant formulations for textiles, plastics, and wood products.
• Glass & Ceramics: Acts as a fluxing agent and source of boron oxide (B2O3) to modify thermal properties and improve durability in specialty glasses, glazes, and enamels.
• Wood Preservation: Employed in treatments to impart fire resistance and decay protection to lumber and engineered wood.
• Agriculture: Functions as a micronutrient fertilizer and a source of soluble boron for correcting boron deficiencies in crops.
• Chemical Synthesis: Serves as a precursor or reagent in the production of other boron-containing compounds and specialty chemicals.
• Adhesives & Sealants: Incorporated to enhance fire resistance properties in intumescent coatings and sealants.

Basic Information

Product Name	Ammonium Pentaborate Tetrahydrate
CAS No.	12046-04-7
Molecular Formula	NH4B5O8·4H2O or H20B5NO12
Molecular Weight	304.11 g/mol
Synonyms	Ammonium Pentaborate Octahydrate (common misnomer); Ammonium Pentaborate; Diammonium Decaborate Tetrahydrate; Ammonium Borate; Pentaboric Acid, Ammonium Salt, Tetrahydrate; Boron Ammonium Oxide Hydrate; AB5T; APB
EINECS	234-965-3

Quality Control

Our Ammonium Pentaborate Tetrahydrate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications, including assay (B2O3 and NH3 content), moisture, and impurity profiles. Certificates of Analysis (COA) documenting these results are provided with every shipment to guarantee traceability and consistency for your production needs.

Storage

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

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as B2O3)	≥ 65.0 %
Assay (as NH3)	≥ 5.5 %
Water Content (Loss on Drying)	22.0 - 25.0 %
Insolubles in Water	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 50 ppm

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