Description

Boric Acid (H3B3O6), Monohydrate (9Ci) is a specific hydrated form of boric acid, a versatile inorganic compound with the CAS registry number 51317-42-1. This monohydrate grade is valued for its consistent composition and purity, making it a reliable raw material for demanding industrial and technical applications. It is primarily utilized in sectors such as glass and ceramics manufacturing, flame retardants, and as a precursor for other boron compounds.

Application

• Glass & Ceramics Manufacturing: A key fluxing agent to lower melting temperatures and improve the thermal and chemical resistance of borosilicate glass, fiberglass, and ceramic glazes.
• Flame Retardants: Used as a component in cellulose insulation, textiles, and wood treatments due to its ability to release water and form a protective glassy layer when heated.
• Agriculture & Horticulture: Serves as a source of the micronutrient boron in fertilizers and as a mild fungicide and wood preservative.
• Chemical Synthesis: Acts as a crucial precursor and intermediate in the production of other boron-based chemicals, such as boron oxides and specialty borates.
• Metalworking & Metallurgy: Employed as a flux in welding and soldering, and in metal refining processes.
• Nuclear Industry: Used in some nuclear applications for neutron absorption due to the presence of the boron-10 isotope.

Basic Information

Product Name	Boric Acid (H3B3O6), Monohydrate (9Ci)
CAS No.	51317-42-1
Molecular Formula	H3BO3 · H2O or H5BO4
Molecular Weight	83.83 g/mol
Synonyms	Boric Acid Monohydrate; Orthoboric Acid Monohydrate; Boracic Acid Monohydrate; Trihydroxidoboron Monohydrate; Hydrogen Orthoborate Monohydrate; Boric Acid (H3BO3), Monohydrate; Boron Trihydroxide Monohydrate
EINECS	Contact for details

Quality Control

Our Boric Acid Monohydrate is produced and tested under strict quality management protocols to ensure batch-to-batch consistency and reliability. While available in standard technical and industrial grades, production can be aligned with common industry specifications. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment to guarantee compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can lead to caking or changes in assay.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as H3BO3)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 10 ppm

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