Lithium tetraborate
Lithium tetraborate (CAS 12007-60-2), chemical formula Li2B4O7, is an inorganic compound with a molecular weight of 169.12 g/mol. It is primarily utilised as a spectroscopic fluxing agent. This compound is noted for its insolubility in water and high melting point, making it suitable for high-temperature applications in analytical chemistry.

Spectroscopic Fluxing Agent
Lithium tetraborate serves as a key component in fused bead preparation for X-ray fluorescence (XRF) and inductively coupled plasma (ICP) spectroscopy. Its properties facilitate the dissolution of solid samples, allowing for accurate elemental analysis.
Analytical Chemistry Reagent
As a specialised reagent, it is employed in various analytical procedures where a stable, high-temperature flux is required. Its use ensures the homogeneity of the sample melt for consistent analytical results.
Decomposition Reagent
This chemical is valuable in decomposition methods for certain types of samples, aiding in the breakdown of refractory materials prior to analysis.
| Molecular weight | 169.12 |
|---|---|
| Linear formula | Li2B4O7 |
| Assay | 98.0-102.0% |
| Density | ≥0.25 g/mL at 25 °C(lit.) |
| Solubility | H2O: slightly soluble(lit.) |
| Application | Used as a spectroscopic fluxing agent. |
| Melting point | 760-880 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Lithium Tetraborate primarily used for?
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Lithium tetraborate is primarily used as a spectroscopic fluxing agent in analytical chemistry, particularly for preparing fused beads for XRF and ICP analysis.
What is the CAS number and chemical formula for Lithium Tetraborate?
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The CAS number for Lithium Tetraborate is 12007-60-2, and its chemical formula is Li2B4O7.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Lithium Tetraborate with an assay of 98.0-102.0%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Lithium Tetraborate be handled safely?
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Lithium Tetraborate is a Warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust.
Is Lithium Tetraborate a controlled substance?
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Based on the provided data, Lithium Tetraborate (CAS 12007-60-2) is not listed as a controlled substance. We export worldwide in compliance with all regulations.
How can I request a quote or sample for Lithium Tetraborate?
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Please contact our sales team via the website or your dedicated account manager to request a quote or a sample. We are happy to discuss your specific requirements.
What are the shipping and packaging details for Lithium Tetraborate?
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Lithium Tetraborate is carefully packed to ensure safe transit and is exported globally. Specific packaging details will be provided upon request and order confirmation.
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