Description

Ammonium Tetraborate Tetrahydrate is an inorganic ammonium salt of tetraboric acid, widely utilized as a source of boron and ammonia in specialized industrial processes. Its significance lies in its dual functionality, providing both buffering capacity and flame-retardant properties in various formulations. This compound is essential for manufacturers in the ceramics, flame retardancy, and specialty chemical synthesis sectors seeking a consistent and high-purity reagent.

Application

• As a key component in the production of specialty glasses and ceramic glazes, where it acts as a flux and stabilizer.
• As a flame retardant additive in polymers, textiles, and wood treatment formulations.
• In the synthesis of other boron-containing compounds and catalysts for organic reactions.
• As a buffering agent and corrosion inhibitor in specific aqueous systems and metal treatment processes.
• In laboratory settings as an analytical reagent for boron determination and other chemical analyses.
• For the formulation of preservatives and fungicides in certain industrial applications.

Basic Information

Product Name	Ammonium Tetraborate Tetrahydrate
CAS No.	10135-84-9
Molecular Formula	B4H20N2O11 or (NH4)2B4O7·4H2O
Molecular Weight	263.38 g/mol
Synonyms	Ammonium Tetraborate; Diammonium Tetraborate Tetrahydrate; Ammonium Borate; Tetraboric Acid, Diammonium Salt, Tetrahydrate; Boric Acid, Ammonium Salt; (NH4)2B4O7·4H2O; Ammonium Biborate
EINECS	233-376-0

Quality Control

Our Ammonium Tetraborate Tetrahydrate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and physical characterization, to meet exacting industry standards. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee product integrity and traceability.

Storage

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

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as (NH4)2B4O7·4H2O)	≥ 98.0 %
pH (5% solution)	8.0 - 9.5
Loss on Drying	≤ 28.0 %
Water Insoluble Matter	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 10 ppm

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