Molekula
Sodium metaborate tetrahydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium metaborate tetrahydrate is a water-soluble inorganic compound used as a stabilizer, buffer, and catalyst in industrial and laboratory applications. It is available in powder or crystalline form. CAS: 10555-76-7, Molecular formula: NaBO2 · 4H2O, Molecular weight: 137.86 g/mol, Storage: Ambient, Signal word: Warning. Molekula supplies Sodium metaborate tetrahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
-
500 g — £47.00 per pack ex VAT · £56.40 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Solid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90031890 |
| CAS Number | 10555-76-7 |
| IUPAC Name | sodium;oxido(oxo)borane;tetrahydrate |
| Molecular Formula | NaBO2 · 4H2O |
| Molecular Weight | 137.86 |
| Exact Mass | 138.0312 |
| SMILES | B(=O)[O-].O.O.O.O.[Na+] |
| InChIKey | JAKYJVJWXKRTSJ-UHFFFAOYSA-N |
| InChI | InChI=1S/BO2.Na.4H2O/c2-1-3;;;;;/h;;4*1H2/q-1;+1;;;; |
| PubChem CID | 23694267 |
| REACH Code | Y110 |
| HTS Code | 28402000 |
| Tariff Code | 2840209090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H319 Causes serious eye irritation
- H360 May damage fertility or the unborn child
- H373 May cause damage to organs through prolonged or repeated exposure
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+341 IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- BH8NaO6
- SODIUM TETRAHYDRATE OXOBORINATE
- sodium;oxido(oxo)borane;tetrahydrate
Frequently asked questions
What is sodium metaborate tetrahydrate used for?
It is used as a flux in metallurgy, a stabilizer in detergents, and in the synthesis of boron-containing compounds.
What is the chemical formula and molecular weight?
The formula is NaBO2 · 4H2O with a molecular weight of 137.86 g/mol.
How should sodium metaborate tetrahydrate be stored?
Store at ambient temperature in a dry, well-ventilated area away from moisture and incompatible substances.
What grade is available?
Available in technical grade; custom grades may be available upon request.
Can Molekula supply it in bulk?
Yes, Molekula can supply sodium metaborate tetrahydrate in bulk quantities; please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.