Molekula
Potassium hexahydroxoantimonate (V)
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
Potassium hexahydroxoantimonate (V) is an inorganic salt containing antimony in its +5 oxidation state, primarily used as a mordant in dyeing, a reagent in analytical chemistry, and in the production of flame retardants. It is a white crystalline solid with a high solubility in water, often employed where stable antimony compounds are required for specific industrial applications. This chemical has a CAS number of 12208-13-8 and a molecular formula of K[Sb(OH)6], with a molecular weight of 262.90 g/mol. It is safely stored at ambient conditions and carries a signal word of "Warning" for handling precautions. Molekula supplies Potassium hexahydroxoantimonate (V) 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 — £120.00 per pack ex VAT · £144.00 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.
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Identification | Conforms to reference |
| Insoluble Matter | ≤0.01% |
| Solubility in water | Slightly soluble |
| Assay (calculated on ignited subs) | ≥99.0% |
| Minimum sensitivity to sodium (Na) | 1:430 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90026308 |
| CAS Number | 12208-13-8 |
| Molecular Formula | K[Sb(OH)6] |
| Molecular Weight | 262.90 |
| SMILES | [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[K+].[Sb+3] |
| UN Number | UN1549 |
| REACH Code | Y110 |
| HTS Code | 28419050 |
| Tariff Code | 2841908590 |
Safety & GHS
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H302+332 Harmful if swallowed or inhaled
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), 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
No alternate names recorded for this product.
Frequently asked questions
What is potassium hexahydroxoantimonate (V) commonly used for?
It is primarily used in analytical chemistry as a reagent for the detection of sodium ions, which it precipitates as sparingly soluble sodium hexahydroxoantimonate, as well as in some specialized applications in flame retardants and as a mordant in dyeing.
What is the chemical formula and molecular weight of potassium hexahydroxoantimonate (V)?
The chemical formula is K[Sb(OH)₆], and its molecular weight is 262.90 g/mol.
How should potassium hexahydroxoantimonate (V) be stored?
Store at ambient temperature in a cool, dry place, away from incompatible substances. Ensure proper sealing to prevent moisture absorption.
What grade or purity is available for this product?
Molekula supplies this product in analytical reagent (AR) grade with a minimum purity of 98%.
Can Molekula supply potassium hexahydroxoantimonate (V) in bulk quantities?
Yes, bulk quantities are available upon request. Minimum order quantities and packaging options will be provided based on your needs.
What documentation is provided with an order of potassium hexahydroxoantimonate (V)?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.