Sodium metaborate hydrate
Sodium metaborate hydrate (CAS: 15293-77-3) is a sodium salt of metaboric acid, typically supplied as a hydrate with the linear formula NaBO2 · xH2O. It is an essential chemical used in various industrial and research applications. Its properties make it a valuable compound in chemical synthesis and formulation, serving as a key component in diverse chemical processes.

Chemical Synthesis
Sodium metaborate hydrate serves as a reagent or intermediate in the synthesis of various boron-containing compounds and other specialty chemicals. It is incorporated into complex organic and inorganic reaction pathways.
Industrial Formulations
This compound can be utilised in the formulation of industrial products, potentially acting as a buffering agent, fluxing agent, or component in specialised mixtures. Its properties aid in achieving desired product characteristics.
Research and Development
In research settings, sodium metaborate hydrate is employed for laboratory investigations and the development of new chemical entities and processes. It supports experimental work requiring a source of sodium and borate ions.
| Molecular weight | 65.80 (anhydrous basis) |
|---|---|
| Linear formula | NaBO2 · xH2O |

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) | 3 |
| 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 Sodium metaborate hydrate used for?
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Sodium metaborate hydrate is used in chemical synthesis, industrial formulations, and research and development activities.
What is the CAS number and formula for Sodium metaborate hydrate?
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The CAS number is 15293-77-3, and the linear formula is NaBO2 · xH2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies sodium metaborate hydrate, often as a technical or research grade. We do not represent this product as USP, BP, or EP grade unless explicitly stated otherwise.
How should Sodium metaborate hydrate be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. Refer to the Safety Data Sheet for comprehensive guidance.
Is Sodium metaborate hydrate a controlled substance?
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The provided data does not indicate that Sodium metaborate hydrate is a controlled substance.
How is Sodium metaborate hydrate packed and shipped?
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Sodium metaborate hydrate is carefully packed to ensure product integrity during transit and is available for export globally by Tech Serve Solutions.
How can I request a sample or quote for Sodium metaborate hydrate?
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To request a sample or obtain a quote for Sodium metaborate hydrate, please contact the Tech Serve Solutions sales team through our website or by phone.
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