Description

Boric Acid, Sodium Salt CAS NO 1333-73-9 is a versatile inorganic compound widely used as a source of boron and sodium. It is valued for its flame-retardant properties, buffering capacity, and role as a precursor in chemical synthesis. This product is essential for manufacturers in the glass, ceramics, flame retardant, and detergent industries seeking a reliable and consistent source of high-purity material.

Application

• As a key raw material in the production of borosilicate and specialty glasses for enhanced thermal and chemical resistance.
• As an effective flame retardant and smoke suppressant in polymers, textiles, and wood treatments.
• In the formulation of detergents, cleaning agents, and water softening products.
• As a buffering agent and corrosion inhibitor in various industrial processes and metalworking fluids.
• In the ceramics industry for glazes and enamels to improve durability and finish.
• As a precursor for the synthesis of other boron-containing chemicals and compounds.
• In agricultural applications as a micronutrient fertilizer and pest control agent.

Basic Information

Product Name	Boric Acid, Sodium Salt
CAS No.	1333-73-9
Molecular Formula	NaBO₂ · xH₂O (commonly as Sodium Metaborate)
Molecular Weight	65.80 (Anhydrous NaBO₂)
Synonyms	Sodium Metaborate; Boron Sodium Oxide; Sodium Borate, Anhydrous; Sodium Boron Oxide; Boric Acid (HBO2), Sodium Salt; Metaboric Acid, Sodium Salt; Sodium Oxoborane Oxide
EINECS	215-604-7

Quality Control

Our Boric Acid, Sodium Salt is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing key parameters such as assay, moisture content, and impurity levels. Our quality commitment aligns with industrial and technical grade specifications to meet the rigorous demands of our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic nature, the container must be kept tightly sealed after each use to prevent moisture absorption and caking. Recommended storage temperature is between 15°C and 25°C.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as NaBO₂), min	98.0%
Loss on Drying, max	2.0%
pH (5% solution)	10.0 - 11.5
Water Insolubles, max	0.1%
Heavy Metals (as Pb), max	10 ppm

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