Molekula
Potassium chlorate
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 chlorate is an inorganic oxidizing agent used in pyrotechnics, laboratory synthesis, and chemical manufacturing. It is a white crystalline solid with high reactivity and potential for explosive decomposition. CAS: 3811-04-9, Molecular formula: KClO3, Molecular weight: 122.55 g/mol. Stored at ambient temperatures. Signal word: Danger. Molekula supplies Potassium chlorate 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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1 kg — £59.20 per pack ex VAT · £71.04 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/ off white crystalline powder |
| Assay | ≥ 97.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 5.1 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White monoclinic crystals |
| Melting Point | 368 °C |
| Boiling Point | 400 °C (decomposes) |
| Density | 2.32 g/cm³ |
| Refractive Index | 1.440 |
Source: PubChem CID 6426889 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 15758168 |
| CAS Number | 3811-04-9 |
| IUPAC Name | potassium chlorate |
| EC Number | 223-289-7 |
| Molecular Formula | KClO3 |
| Molecular Weight | 122.55 |
| Exact Mass | 121.9173 |
| SMILES | [O-]Cl(=O)=O.[K+] |
| InChIKey | VKJKEPKFPUWCAS-UHFFFAOYSA-M |
| InChI | InChI=1S/ClHO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1 |
| PubChem CID | 6426889 |
| UN Number | UN1485 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2829.19.01.00 |
| Tariff Code | 2829190000 |
Safety & GHS
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Oxidizing
GHS03
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Toxic
GHS06
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H271 May cause fire or explosion; strong oxidizer
- H301 Toxic if swallowed
- H312+H332 Harmful in contact with skin or inhaled
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- 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+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, 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
- Anforstan
- Berthollet salt
- Berthollet's salt
- Chlorate of potash
- Fekabit
- Kaliumchlorat
- Oxymuriate of potash
- Potassium oxymuriate
- Potcrate
- Salt of tarter
Frequently asked questions
What is potassium chlorate used for?
Potassium chlorate is primarily used in the production of explosives, fireworks, and matches due to its strong oxidizing properties.
What is the chemical formula and molecular weight of potassium chlorate?
The chemical formula is KClO3 and the molecular weight is 122.55 g/mol.
How should potassium chlorate be stored?
It should be stored at ambient temperature in a dry, cool, and well-ventilated area away from combustible materials.
What grade of potassium chlorate does Molekula supply?
Molekula supplies potassium chlorate in reagent grade, suitable for laboratory and industrial applications.
Can Molekula supply potassium chlorate in bulk?
Yes, Molekula can supply potassium chlorate in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a purchase of potassium chlorate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS standards.
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.