Dipotassium Phosphate

Dipotassium Phosphate is the dibasic potassium salt of orthophosphoric acid, with formula K₂HPO₄ and the trade abbreviation DKP.

It is a mildly alkaline, highly soluble white powder used as a buffer, an emulsifying salt in processed dairy, a non-dairy creamer stabiliser, and a source of potassium and phosphate in clinical nutrition.

We source bulk Dipotassium Phosphate from top China manufacturers for our partners, working with several of them. The manufacturers are mostly in Jiangsu, Sichuan and Shandong. For this ingredient the minimum order is 500 kg and a 20-foot container takes 21 MT, and 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

Minimum order: 500 kg
Qty in 20' FCL: 21 MT
Packaging: 25 kg kraft paper bag with PE inner liner

Function: Mineral salt

ISO 9001
HACCP
Halal
Kosher

Specifications

Item	Specification
1	Main contents % ≥
2	Phosphorus pentoxide % ≥
3	Potassium oxide (K2O) % ≥
4	PH value (10g/L solution)
5	Moisture % ≤
6	Sulfates(SO4) % ≤
7	Heavy metal, as Pb % ≤
8	Arsenic, as As % ≤
9	Fluoride as F % ≤
10	Water insoluble % ≤
11	Pb % ≤
12	Fe % ≤
13	Cl % ≤

Common Markets Grades

DKP comes in anhydrous and trihydrate forms.

The anhydrous grade is the standard for dry-blend applications. It is hygroscopic and is usually packed in moisture-barrier liners. Food-grade material meets the FCC monograph at 98 percent minimum assay.

The trihydrate grade (K₂HPO₄·3H₂O) is preferred where a more free-flowing crystal is required and where direct dissolution into liquid systems is the norm. It also serves as the reference form in several pharmacopoeial monographs.

USP and Ph. Eur. grades reach 99 percent and above with tight controls on chloride, sulphate, and heavy metals. These tighter grades are used in parenteral nutrition concentrates, dialysis solutions, and as a phosphate source in cell-culture media.

Applications

Emulsifying salt in processed cheese slices, spreads, and cheese sauces to prevent oil separation
Non-dairy creamer powders to neutralise coffee acidity and prevent feathering
Buffer and protein stabiliser in UHT milk, evaporated milk, and infant formula
Mineral fortification in sports drinks, electrolyte powders, and clinical-nutrition beverages
Fermentation nutrient in brewing, distilling, and microbial cultivation
Buffer salt in biochemistry and molecular-biology workflows, including PBS preparations
Phosphate and potassium source in total parenteral nutrition admixtures
Dialysis concentrates and oral electrolyte solutions
Mouthwashes and toothpastes as a buffering and mild abrasive component
Anti-freeze and corrosion-inhibitor formulations in industrial water treatment

Brands Using Dipotassium Phosphate

Widely-distributed consumer products that list Dipotassium Phosphate on the ingredient label.

Brand names, product names and logos are the property of their owners. They appear here as published evidence that the ingredient is used, taken from the brand's own label or website. Their appearance is not an endorsement, and it does not mean the brand buys from us or from any manufacturer listed on this site.

China Manufacturers of Dipotassium Phosphate

Top Dipotassium Phosphate 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 Dipotassium Phosphate

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 Dipotassium Phosphate 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 Dipotassium Phosphate together with other ingredients such as Sodium Acetate, Calcium Citrate and Sodium Lactate into one 20' FCL. If your quantity is small, we can also ship LCL.

Regulatory Status

DKP carries the EU food additive number E340(ii), and Regulation (EC) No 1333/2008 permits it across many food categories.

In the United States it is Generally Recognized as Safe under 21 CFR 182.1613 for general food use and 21 CFR 182.6285 for use as a sequestrant. It also appears in 21 CFR 184.1631 for non-dairy creamer applications.

JECFA evaluates the potassium phosphate group together with sodium and calcium phosphates under a combined health-based guidance value for total phosphate intake.

The salt has monographs in the United States Pharmacopeia, the European Pharmacopoeia, and the Japanese Pharmacopoeia, all of which set limits on arsenic, fluoride, and heavy metals.

Kosher and Halal certifications are routinely issued because the production chain uses only mineral feedstocks.

Manufacturing Process

Dipotassium Phosphate Manufacturing Process

Loading process diagram…

DKP is produced by neutralising food-grade phosphoric acid with potassium hydroxide at a 1:2 acid-to-base molar ratio.

The exothermic reaction is controlled by metering KOH into a phosphoric acid charge held near 80 °C. The end point is verified by potentiometric titration to ensure the dibasic stoichiometry is met without overshooting toward the tribasic salt.

The clarified liquor is concentrated under vacuum and then either spray-dried to yield the anhydrous powder or cooled and crystallised to recover the trihydrate. Drying conditions determine the final crystal water content, and final products are screened, milled, and packed under controlled humidity.

Production is concentrated in China, with additional capacity in Belgium (Prayon), the United States (Innophos), Germany (BK Giulini / ICL), and Israel.