Description

Sodium Metaborate Dihydrate CAS NO 16800-11-6 is an inorganic borate salt widely used as a versatile source of borate ions in industrial processes. This compound is valued for its role as a buffering agent, corrosion inhibitor, and fluxing component. It is essential for manufacturers in the glass, ceramics, metallurgy, and detergent industries seeking reliable and consistent chemical performance.

Application

• As a fluxing agent and component in the production of specialty glasses, ceramics, and enamels.
• As a corrosion inhibitor in aqueous systems, cooling towers, and metalworking fluids.
• As a buffering agent and source of boron in various chemical synthesis and formulation processes.
• In the formulation of industrial and institutional cleaning compounds and detergents.
• As a component in fire retardant formulations and treatments for materials.
• In agricultural applications as a micronutrient source and in certain pesticide formulations.
• For water treatment applications to control scale and corrosion.
• In laboratory research and analytical chemistry as a reagent.

Basic Information

Product Name	Sodium Metaborate Dihydrate
CAS No.	16800-11-6
Molecular Formula	NaBO2 · 2H2O
Molecular Weight	101.83 g/mol
Synonyms	Sodium Metaborate Tetrahydrate (common misnomer); Boric Acid, Sodium Salt, Dihydrate; Sodium Borate (Metaborate); Metaboric Acid, Sodium Salt, Dihydrate; NaBO2·2H2O; Boron Sodium Oxide (B4Na2O7) hydrate; Sodium Metaborate-4-Water
EINECS	240-824-6

Quality Control

Our Sodium Metaborate Dihydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your requirements.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture and caking.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as NaBO2·2H2O)	≥ 98.0 %
pH (5% solution)	10.0 - 11.5
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %

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