Description

Lithium Tetraborate is an inorganic compound widely used as a high-purity fluxing agent and analytical reagent. Its primary value lies in its ability to form stable, low-melting-point glasses with metal oxides, making it indispensable for precise elemental analysis. This product is essential for industries requiring accurate material composition data, such as analytical laboratories, glass and ceramic manufacturing, and metallurgy.

Application

• Fusion Flux for XRF and AA/ICP Analysis: Used to prepare homogeneous glass beads or discs for the accurate elemental analysis of ores, ceramics, cements, and alloys.
• Glass and Ceramic Production: Acts as a flux and glass former to lower melting temperatures and modify thermal expansion properties in specialty glasses and enamel frits.
• Laboratory Reagent: Serves as a high-purity chemical for calibration standards, buffer solutions, and sample preparation in analytical chemistry.
• Electrolyte Additive: Investigated for use in certain battery systems to enhance ionic conductivity and electrolyte stability.
• Welding and Brazing Fluxes: Incorporated into flux formulations to dissolve oxides and promote clean metal joins.
• Single Crystal Growth: Utilized as a solvent or flux in the growth of specific oxide crystals for research and electronic applications.

Basic Information

Product Name	Lithium Tetraborate
CAS No.	12007-60-2
Molecular Formula	Li2B4O7
Molecular Weight	169.12 g/mol
Synonyms	Lithium Borate; Diboron Lithium Heptaoxide; Lithium Borate (Li2B4O7); Tetraboric Acid, Dilithium Salt; Boron Lithium Oxide (B4Li2O7); Dilithium Tetraborate; Fluxing Agent 50/50; Spectroflux® 100 (Trade Name Equivalent)
EINECS	234-514-3

Quality Control

Our Lithium Tetraborate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Production adheres to relevant analytical reagent standards. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles to meet the stringent requirements of analytical and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (Li2B4O7)	≥ 99.0%
Loss on Drying	≤ 0.5%
Insoluble Matter	≤ 0.01%
Chloride (Cl)	≤ 0.001%
Sulfate (SO4)	≤ 0.002%
Heavy Metals (as Pb)	≤ 0.0005%
Iron (Fe)	≤ 0.001%
Calcium (Ca)	≤ 0.005%
Sodium (Na)	≤ 0.01%
Potassium (K)	≤ 0.005%

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