CAS 7681-11-0
Potassium Iodide
CAS 7681-11-0KI~166.00 g/mol
Potassium Iodide (CAS 7681-11-0) is a versatile chemical widely used in sectors ranging from pharmaceuticals to photography. As a high-purity, white crystalline powder, it's crucial in applications such as organic synthesis, nutrient iodine source in iodized salt, and disinfection in water treatment systems. Key industries including the food, pharmaceutical, and chemical sectors in East Africa routinely integrate this compound into their processes. Known for its role in producing silver iodide for photographic films and serving as an iodine source for animal feed, Potassium Iodide is essential in multiple formulations and applications.
Main applicationPhotography — Produces silver iodide for film emulsions
Potassium Iodide's importance lies in its cross-industry applications, from ensuring iodine sufficiency in food products to facilitating advanced organic synthesis in pharmaceuticals. Its availability in East Africa supports local industries, contributing to economic growth and innovation. As a crucial reagent in chemical processes, it empowers sectors like food processing, pharmaceuticals, and water treatment, making it a valuable resource for maintaining industry standards and quality.
Also known as
- KI
- Iodide of potash

Trade pricing
Quoted per enquiry
Pricing depends on volume, grade and delivery point. Our desk responds within two working hours.
Available packaging
- Available in 25 kg bags.
Documentation
Batch-specific COA issued with every consignment.
Technical specifications
- CAS number
- 7681-11-0
- Chemical formula
- KI
- Molecular weight
- ~166.00 g/mol
- Grade
- Technical grade
- Purity
- 99%
- Appearance
- White crystalline or granular solid
- Concentration
- 99-100.5 %
Potassium Iodide, with the molecular formula KI and a molecular weight of ~166.00 g/mol, is available in a high-purity form of ≥99%. Often supplied as a white crystalline or granular solid, it is known for its stability and easy solubility in water. Selection criteria for purchasing Potassium Iodide include purity grade, typically Extra Pure or ACS reagent grade, assuring low levels of impurities such as insoluble matter and heavy metals. This grants it the reliability required for sensitive applications like pharmaceutical production and analytical chemistry. Packaging, often available in 25 kg bags, caters to both bulk industrial use and precision in laboratory settings.
Delivery
Potassium Iodide is dispatched from our Nairobi warehouse across Kenya, and export delivery is arranged to the wider East African market. Lead time depends on quantity and grade and is confirmed with your quotation — see delivery and collection for the towns we reach and how dispatch works.
Applications & uses
- Photography — Produces silver iodide for film emulsions
- Organic synthesis — Intermediate in aryl iodide production
- Biomedical research — Serves as a fluorescence quencher/enhancer
- Photovoltaics — Component in dye-sensitized solar cells
- Water treatment — Used in disinfection and emergency purification
- Food industry — Iodine source in iodized salt and supplements
- Animal feed — Iodine source and bromide substitute
- Chemical analysis — Regulates halide reactions
Industries we supply this to
Why buy this from Sparks
- High purity — Ensures effectiveness and safety in critical applications
- Stable form — Easy to handle and store without degradation
- Versatile — Applicable across multiple industries
- Low impurities — Suitable for pharmaceutical and food-grade applications
- Soluble — Facilitates easy incorporation into solutions
- Locally supplied — Regional availability supports quick procurement
Quality assurance
- Batches are checked against the specification values listed above before dispatch.
State what your process, auditor or customs clearance requires when you request a quotation, and it is confirmed with the quote.
Safety, handling & storage
Always consult the full Safety Data Sheet before handling. Personnel must use appropriate PPE and follow local regulations for storage, transport and disposal.
Frequently asked questions
What is the CAS number of Potassium Iodide?
The CAS registry number for Potassium Iodide is 7681-11-0. Its chemical formula is KI, with a molecular weight of ~166.00 g/mol. Quote this number when requesting a quotation or checking documentation, as it identifies the substance unambiguously regardless of the trade name used.
What are the other names for Potassium Iodide?
Potassium Iodide is also referred to as KI and Iodide of potash. These names describe the same substance, so a specification or enquiry written against any of them can be matched to this product.
What grade of Potassium Iodide is supplied?
Potassium Iodide is supplied as Technical grade. State the grade your process requires when requesting a quotation — where an alternative grade can be sourced, it is confirmed at quotation stage rather than assumed.
What concentration is Potassium Iodide supplied at?
Potassium Iodide is supplied at a concentration of 99-100.5%. Concentration and assay are separate figures: the concentration describes the strength of the material as supplied, and the certificate of analysis issued for your consignment carries the measured values for that batch.
What is the purity of Potassium Iodide?
The purity/assay figure recorded for Potassium Iodide is 99%. Figures are typical values for the grade supplied; the certificate of analysis for your specific batch is the authoritative record and can be provided on request.
What does Potassium Iodide look like?
Potassium Iodide is described as white crystalline or granular solid. Appearance is a useful first check on receipt of goods, though it does not replace the certificate of analysis for confirming that the material meets specification.
What is Potassium Iodide used for?
Common applications include photography — Produces silver iodide for film emulsions, organic synthesis — Intermediate in aryl iodide production, biomedical research — Serves as a fluorescence quencher/enhancer, photovoltaics — Component in dye-sensitized solar cells, water treatment — Used in disinfection and emergency purification and food industry — Iodine source in iodized salt and supplements. The suitability of the product for a particular process depends on the grade and specification required, which is worth confirming against your own process conditions.
Which industries use Potassium Iodide?
Potassium Iodide is supplied to the Water Treatment, Food Processing & Beverage, Agriculture & Agrochemicals, Mining & Minerals, Construction & Admixtures, Pharmaceuticals & Healthcare, Cosmetics & Personal Care, Cleaning & Detergents, Paints, Coatings & Inks, Textile & Leather Tanning, Oil, Gas & Energy and Laboratories & Research sectors. These are the industries this product is listed against in our catalogue; if your application falls outside them, we can advise on suitability before you order.
What packaging is Potassium Iodide available in?
Available in 25 kg bags. Where a different pack size or bulk delivery is required, it is confirmed at quotation stage against availability rather than listed here as standard.
What is the HS code for Potassium Iodide?
Potassium Iodide is recorded against the EC number 231-659-4 and the HS customs code 2827.6010. Quote this on customs and export paperwork; it is confirmed again on the commercial invoice for your specific consignment.
Related to Potassium Iodide
Where this product sits in the catalogue, and the sectors that use it.
References
Technical information on this page was compiled from the following published sources. Safety and handling data always comes from the supplier’s own safety data sheet.
- 1.7681-11-0 CAS | POTASSIUM IODIDE | Metallic Salts (Metal Salts) | Article No. 05390lobachemie.com
- 2.Potassium iodide granular, Meets ACS Specifications GR ACS 7681-11-0merckmillipore.com
- 3.Kenya Iodides and iodide oxides exports by country | 2024 | Datawits.worldbank.org
- 4.Potassium iodideen.wikipedia.org
- 5.potassium iodideams.usda.gov
- 6.4.4.4 Potassium Iodideassets.publishing.service.gov.uk
- 7.Potassium Iodide in East Africa - Finstar Industrial Chemicalsfinstarindustrialchemicals.co.ke
- 8.Connect with Verified Potassium Iodide Buyers in Kenya | Volzavolza.com
- 9.InfoTradeKenyainfotradekenya.go.ke
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