Potassium Diformate
Potassium Diformate is the equimolar hydrogen-bonded complex of potassium formate and formic acid, with empirical formula KH(COOH)₂ and CAS number 20642-05-1.
The compound is used as a feed-grade antimicrobial and acidifier in pig and poultry diets, where it is registered as a zootechnical performance enhancer and as a substitute for in-feed antibiotic growth promoters. The salt-acid complex stores and dispenses the antimicrobial activity of formic acid in a free-flowing solid form that is easier and safer to handle than the neat acid.
We source bulk Potassium Diformate from top China manufacturers for our partners. The manufacturer is in Jiangsu. A smaller requirement can ship in a combined container with other ingredients.
Please send the grade you need, the volume and your destination port, and we will come back with a solution and a price.
or call +86-21-6858 0751
- Packaging
- 25 kg kraft paper bag with PE inner liner
- ISO 9001
- HACCP
- Halal
- Kosher
Specifications
| Item | Specification |
|---|---|
| Appearance | White crystalline granules |
| Assay | ≥ 98.0% |
| Formic Acid Content | 35-37% |
| Potassium Content | 28-32% |
| pH (10% solution) | 3.5-4.5 |
| Moisture | ≤ 0.5% |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
| Purity (on dried basis) | ≥99.0% |
| Loss on drying (105℃, 2h) | ≤4.0% |
| Water-insoluble substances | ≤0.1% |
| Iron (Fe) | ≤30 mg/kg |
| Lead (Pb) | ≤5 mg/kg |
Common Markets Grades
Potassium Diformate is a free-flowing white to off-white crystalline granulate.
The standard piglet grade has a calibrated particle size in the 0.5 to 2 mm range to allow uniform incorporation into compound feed without segregation during pneumatic transfer or pelleting.
A finer powder grade is produced for liquid-feed dispensing systems and for milk-replacer formulations used in early-weaning programs.
A coated grade with a fat or wax overlayer is produced for applications where downstream protection from moisture or premature dissolution is required. Material ships in 25 kg lined polyethylene bags and in 500 to 1000 kg bulk bags.
Applications
- Compound feed for weaning and starter piglets to support gut health and growth performance
- Grower and finisher pig diets as a performance enhancer and antimicrobial
- Broiler chicken feed for control of Salmonella and Campylobacter
- Layer hen feed for hygiene and shell-quality support
- Turkey feed in starter and grower phases
- Sow lactation diets for maternal health and litter performance
- Liquid feed systems for fattening pigs
- Milk replacers for piglet early-weaning programs
- Aquaculture feed for selected fish and shrimp species
- Stored feed and raw-material conservation as a mould and bacterial inhibitor
- Silage additives for forage preservation
China Manufacturers of Potassium Diformate
Top Potassium Diformate manufacturers in China.
Company names and logos are the property of the manufacturers themselves. They are listed here because our own directory records them as producing this ingredient. A listing is not an endorsement by them, and we do not represent them or speak on their behalf.
How We Help Source Potassium Diformate
Direct Factory Sourcing
We run the whole process: selecting the manufacturer from the top Chinese food ingredient producers, negotiating the price, verifying quality, and coordinating the logistics. You deal with us instead of with several factories at once.
Original Packaging and Documents from the Manufacturer
The manufacturer sends your Potassium Diformate out of its own factory in the original packing, through to your destination port. The COA, COO, MSDS, TDS and any certifications reach you from the manufacturer as well.
Free Samples and Lead Time
We send 100 to 500 g free for your own laboratory to test and you cover only the courier, usually within 2 to 3 working days. ETD is usually within 7 to 15 days once the order is confirmed, and we check that date against the factory's own manufacturing schedule before we give it to you.
Combined Shipment
We can load Potassium Diformate together with other ingredients such as Calcium Propionate, Sodium Diacetate and Sodium Propionate into one 20' FCL. If your quantity is small, we can also ship LCL.
Regulatory Status
In the European Union, Regulation (EC) No 1831/2003 on additives for use in animal nutrition authorises Potassium Diformate as a feed additive.
It was the first non-antibiotic feed additive in the European Union to receive zootechnical-performance-enhancer status, a category previously occupied exclusively by antibiotic growth promoters.
The substance is not authorised for direct addition to human food and is not classified as a food additive. Use is limited to animal-nutrition applications under the conditions set by the marketing authorisation.
Outside the European Union, the additive is registered for feed use in numerous markets including Norway, Switzerland, Turkey, several Latin American countries, and parts of Southeast Asia. Each authorisation carries category-specific maximum-use levels and target-species restrictions.
Kosher and Halal certifications are routinely available, and the manufacturing route uses no animal-derived inputs.
Manufacturing Process
Potassium Diformate is produced by reacting potassium formate with formic acid in a controlled equimolar ratio.
The potassium formate feedstock is itself made by neutralising formic acid with potassium hydroxide or potassium carbonate, or as a co-product of pentaerythritol manufacture. The neutralisation is run in aqueous solution and the formate concentration is verified before the next step.
The formate solution is then combined with the calculated volume of formic acid to give the 1:1 molar adduct. The mixture is concentrated under vacuum and crystallised in a cooled crystalliser to recover the diformate solid.
The crystals are centrifuged, washed lightly with cold solution to remove free formic acid from the surface, and dried in a fluid-bed dryer. The dried product is sized to the target granulometry by screening and milling.
The original commercial development and the dominant production capacity were established by BASF in Norway in the late 1990s under the trade name Formi, which remains a reference point in the feed industry.
