Description

Sodium Metaborate Tetrahydrate is an inorganic borate salt with versatile chemical functionality. This compound is valued for its role as a buffering agent, corrosion inhibitor, and source of borate ions in aqueous systems. It serves as a critical raw material in industries such as detergents, metal treatment, and specialty glass manufacturing. Sodium Metaborate Tetrahydrate CAS NO 10555-76-7 is supplied to meet the stringent quality demands of industrial and technical applications.

Application

• As a buffering agent and builder in industrial and institutional cleaning formulations.
• In metal surface treatment processes for corrosion inhibition and conversion coatings.
• As a fluxing agent and component in the manufacture of specialty glasses and ceramics.
• In water treatment applications for controlling scale and corrosion.
• As a chemical intermediate for the synthesis of other boron-containing compounds.
• In laboratory settings as a reagent for analytical chemistry and research.
• Within the pulp and paper industry for process control and bleaching applications.
• As a fire retardant synergist in specific polymer and material formulations.

Basic Information

Product Name	Sodium Metaborate Tetrahydrate
CAS No.	10555-76-7
Molecular Formula	NaBO2·4H2O
Molecular Weight	137.86 g/mol
Synonyms	Sodium Metaborate 4-Hydrate; Boron Sodium Oxide Tetrahydrate; Sodium Borate Tetrahydrate; Metaboric Acid Sodium Salt Tetrahydrate; Sodium Oxoboronate Tetrahydrate; NaBO2·4H2O; Boric Acid (HBO2), Sodium Salt, Tetrahydrate
EINECS	Contact for details

Quality Control

Our Sodium Metaborate Tetrahydrate is manufactured under a rigorous quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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 nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as NaBO2·4H2O)	≥ 98.0 %
pH (5% solution)	10.0 - 11.5
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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