Description

Sodium Metaborate is an important inorganic borate compound with the CAS registry number 35585-58-1. It serves as a versatile source of borate ions, offering excellent buffering capacity and flame-retardant properties in various industrial processes. This chemical is essential for manufacturers in the glass, ceramics, detergent, and flame retardant industries seeking a reliable and consistent borate supply.

Application

• As a key component in the manufacture of specialty glass and ceramics, improving thermal and chemical resistance.
• As a corrosion inhibitor and buffering agent in industrial cooling water systems and metal treatment fluids.
• As a fire retardant and synergist in polymers, textiles, and wood treatment formulations.
• In the production of detergents and cleaning agents as a builder and water softener.
• As a herbicide and fungicide in agricultural chemical formulations.
• In analytical chemistry as a reagent and flux for sample preparation.
• As a cross-linking agent and adhesive component in specific polymer systems.
• For the synthesis of other boron-based chemicals and intermediates.

Basic Information

Product Name	Sodium Metaborate
CAS No.	35585-58-1
Molecular Formula	NaBO₂
Molecular Weight	65.80 g/mol
Synonyms	Sodium Boron Oxide; Boron Sodium Oxide (NaBO₂); Metaboric Acid, Sodium Salt; Sodium Oxoborane Oxide; Sodium Borate (NaBO₂); Sodium Metaborate Tetrahydrate (common hydrated form); Boric Acid (HBO₂), Sodium Salt; UNII-8MDF5V39QO
EINECS	252-638-3

Quality Control

Our Sodium Metaborate is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications for industrial applications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as NaBO₂)	≥ 98.0 %
pH (1% Solution)	10.0 - 11.5
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.1 %
Sulfate (SO₄)	≤ 0.1 %

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