Molekula
Barium hydroxide octahydrate
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
Barium hydroxide octahydrate is an inorganic compound composed of barium, oxygen, and water, widely used in chemical synthesis, pH regulation, and as a precursor in the production of barium salts, ceramics, and analytical reagents. It is also employed in the manufacture of soaps, textiles, and as a drying agent. This chemical has a CAS number of 12230-71-6, a molecular formula of Ba(OH)2·8H2O, and a molecular weight of 315.46 g/mol. It should be stored at ambient conditions but handled with caution due to its hazardous nature, indicated by the signal word "Danger." Molekula supplies barium hydroxide octahydrate 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.
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100 g — £33.00 per pack ex VAT · £39.60 inc. VAT
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500 g — £62.00 per pack ex VAT · £74.40 inc. VAT
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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 | White solid |
| Identification | Conforms to reference |
| Assay | >99% |
| Sulfide | <0.1% |
| Iron (Fe) | <0.01% |
| Lead (Pb) | <0.01% |
| Calcium (Ca) | <0.1% |
| HCl Insoluble Matter | <0.01% |
| Strontium (Sr) | <0.5% |
| Chlorine (Cl) | <0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Boiling Point | 780 °C at 760 mmHg |
| Vapour Pressure | 227 mmHg at 77.900000000000006 °C |
Source: PubChem CID 17749109 (PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 17895645 |
| CAS Number | 12230-71-6 |
| IUPAC Name | barium(2+);dihydroxide;octahydrate |
| Molecular Formula | Ba(OH)2 · 8H2O |
| Molecular Weight | 315.46 |
| Exact Mass | 315.9952 |
| SMILES | O.O.O.O.O.O.O.O.[OH-].[OH-].[Ba+2] |
| InChIKey | ZUDYPQRUOYEARG-UHFFFAOYSA-L |
| InChI | InChI=1S/Ba.10H2O/h;10*1H2/q+2;;;;;;;;;;/p-2 |
| PubChem CID | 17749109 |
| UN Number | UN3262 |
| REACH Code | Y110 |
| HTS Code | 28164020 |
| Tariff Code | 2816400090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- EUH071 Corrosive to the respiratory tract
- H302+332 Harmful if swallowed or inhaled
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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, French, German, Italian, Portuguese, 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
- BaO10
- Barium dihydroxide octahydrate
- Barium hydroxide (Ba(OH)2), octahydrate
- Barium hydroxide octahydrate ACS grade
- Barium hydroxide--water (1/2/8)
- barium(2+);dihydroxide;octahydrate
- Dihydroxybarium octahydrate
Frequently asked questions
What is barium hydroxide octahydrate commonly used for?
Barium hydroxide octahydrate is primarily used in chemical synthesis, as a pH regulator, in the production of barium salts, and as a reagent in analytical chemistry.
What is the chemical formula and molecular weight of barium hydroxide octahydrate?
The chemical formula is **Ba(OH)₂·8H₂O**, and the molecular weight is **315.46 g/mol**.
How should barium hydroxide octahydrate be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and incompatible substances.
What grades or purities of barium hydroxide octahydrate does Molekula supply?
Molekula supplies **analytical and reagent-grade** barium hydroxide octahydrate, meeting standard purity requirements for laboratory use.
Can Molekula supply barium hydroxide octahydrate in bulk quantities?
Yes, Molekula can provide barium hydroxide octahydrate in **bulk quantities** upon request, subject to availability and order specifications.
What documentation comes with an order of barium hydroxide octahydrate?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
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.