Description

Sodium Metaborate Hydrate is an inorganic borate compound with the chemical formula NaBO₂·xH₂O. This versatile chemical serves as a stable and effective source of borate ions, making it valuable for applications requiring controlled alkalinity and buffering action. It is primarily utilized in industries such as detergents, glass manufacturing, metallurgy, and as a corrosion inhibitor or flux agent.

Application

• Detergent & Cleaning Formulations: Acts as a builder and water softener, enhancing the cleaning efficiency of soaps and detergents.
• Glass & Ceramics Industry: Used as a flux to lower melting temperatures and modify the thermal and chemical properties of glass and enamel frits.
• Metallurgy: Employed as a flux in welding and brazing, and in metal surface treatment for cleaning and corrosion protection.
• Corrosion Inhibition: Functions as an anodic inhibitor in cooling water systems and antifreeze solutions to protect metal surfaces.
• Agriculture: Can be used as a source of boron in micronutrient fertilizers, essential for plant cell wall formation and development.
• Chemical Synthesis: Serves as a reagent or catalyst in various organic and inorganic synthesis processes.
• Fire Retardants: Incorporated into materials to impart flame-retardant properties.
• Laboratory & Analytical Reagent: Used in analytical chemistry and as a buffer component in specific laboratory procedures.

Basic Information

Product Name	Sodium Metaborate Hydrate
CAS No.	15293-77-3
Molecular Formula	NaBO₂·xH₂O
Molecular Weight	65.80 (anhydrous basis)
Synonyms	Sodium Metaborate; Boric Acid, Sodium Salt; Sodium Boron Oxide; Sodium Oxoboranolate; Metaboric Acid Sodium Salt; NaBO₂; Sodium Metaborate Tetrahydrate (common hydrated form); Sodium Metaborate Octahydrate
EINECS	239-172-9

Quality Control

Our Sodium Metaborate Hydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications, including assay, impurity profile, and loss on drying. Certificates of Analysis (COA) documenting these results are provided to guarantee consistency, purity, and reliability for your industrial processes.

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) and must be kept in original packaging or a moisture-proof container to prevent caking and degradation.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as NaBO₂·xH₂O)	≥ 98.0 %
Boron Content (as B)	Contact for details
Sodium Content (as Na)	Contact for details
Loss on Drying	Contact for details
Water Insoluble Matter	≤ 0.5 %
pH (1% Solution)	~10 - 11

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