Molekula
Potassium iodate
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 iodate is an inorganic compound (IKO₃) primarily used as a food additive (E917) for iodization, a nutritional supplement, and in water treatment for disinfection and algae control. It is also employed in chemical synthesis, photography, and as an oxidizing agent in analytical chemistry. CAS 7758-05-6, molecular weight 214.00 g/mol, stable at ambient storage conditions. Classified as dangerous (signal word: Danger) due to potential health hazards if inhaled or ingested in large quantities. Molekula supplies potassium iodate 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 — £38.60 per pack ex VAT · £46.32 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 to off white crystalline powder |
| Identification | Conforms to reference |
| Iodides | ≤0.002% |
| Lead (Pb) | ≤4 ppm |
| Loss on drying @ 105oC for 3 hours | ≤0.5 % |
| Description | A white, odourless, crystalline powder. One g dissolves in about 15ml of water. It is insoluble in alcohol. The pH of a 1 in 20 aqueous solution is between 5 and 8. |
| Assay as KIO3 (after drying)-Iodometric | 99.0-101.0% |
| Chlorate (ClO3-) | ≤0.01% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 100 °C |
| Transport Class | 5.1 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystals or crystalline powder |
| Odour | Odorless |
| Melting Point | 560 °C |
Source: PubChem CID 23665710 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 39780798 |
| CAS Number | 7758-05-6 |
| IUPAC Name | potassium iodate |
| EC Number | 231-831-9 |
| Molecular Formula | IKO3 |
| Molecular Weight | 214.00 |
| Exact Mass | 213.8529 |
| SMILES | [O-]I(=O)=O.[K+] |
| InChIKey | JLKDVMWYMMLWTI-UHFFFAOYSA-M |
| InChI | InChI=1S/HIO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1 |
| PubChem CID | 23665710 |
| UN Number | UN1479 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2829.90.4000 |
| Tariff Code | 2829908000 |
Safety & GHS
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Oxidizing
GHS03
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H272 May intensify fire; oxidizer
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H361 Suspected of damaging fertility or the unborn child
Precautionary statements
- P202 Do not handle until all safety precautions have been read and understood
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P220 Keep/Store away from clothing/combustible materials
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- 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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
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
- Caswell No. 693A
- IKO3
- IODIC ACID (HIO3) POTASSIUM SALT (1:1)
- Iodic acid (HIO3), potassium salt
- Iodic acid, potassium salt
- Kaliumjodat
- KIO3
- Potassium iodine oxide
- Potassium iodine oxide (KIO3)
- Potassium triodate
Frequently asked questions
What is potassium iodate primarily used for?
Potassium iodate (CAS 7758-05-6) is commonly used as a disinfectant, oxidizing agent, and in the production of iodized salt, water treatment, and as a reagent in analytical chemistry.
What is the chemical formula and molecular weight of potassium iodate?
The chemical formula is KIO₃ (not IKO₃), and its molecular weight is 214.00 g/mol.
How should potassium iodate be stored?
Store in a cool, dry place at ambient temperature, away from incompatible substances like strong reducing agents or organic materials.
What grades of potassium iodate does Molekula supply?
Molekula supplies analytical reagent (AR) and industrial grades of potassium iodate, depending on purity and application requirements.
Can Molekula supply potassium iodate in bulk quantities?
Yes, we offer bulk packaging options (e.g., 25 kg drums or larger) for industrial and commercial customers—please inquire for availability.
What documentation comes with a potassium iodate order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a packing list; additional certifications (e.g., REACH, FDA compliance) are available upon request.
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.