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E340 Potassium phosphatesis a kind of highly efficient and rapid dissolving phosphorus and potassium compound fertilizer containing, phosphorus and potassium, two elements for providing the necessary nutrients for plant growth and development, being applicable to any soil and crop, especially being applicable to the treatment of regions of simultaneous lack of phosphorus and potassium nutrients and phosphorus-preferred and potassium-preferred crops.
E340 Potassium phosphates is mostly used for root top dressing, seed soaking, and seed dressing, being able to yield significant effect.
E340 Potassium phosphates sued for the roots fertilization, it can be used as basal fertilizer, seed fertilizer or moderate-late phase topdressing.
CAS Number: 7778-77-0
Molecular Formula: H3O4P.K
Molecular Weight: 137.09
EINECS: 231-913-4
Synonyms: Potassium dihydrogen phosphate, 7778-77-0, Potassium phosphate monobasic, MONOPOTASSIUM PHOSPHATE, Monobasic potassium phosphate, Potassium acid phosphate, Phosphoric acid monopotassium salt, Potassium phosphate monobasic, Monopotassium monophosphate, Monopotassium orthophosphate, Monopotassium dihydrogen phosphate, potassium biphosphate, Potassium dihydrogen orthophosphate, Sorensen’s potassium phosphate, Potassium dihydrogenorthophosphate, KH2PO4, Potassium phosphate K(H2PO4), Orthophosphoric acid monopotassium salt, HSDB 5046, EINECS 231-913-4, Potassium orthophosphate dihydrogen, EPA Pesticide Chemical Code 076413, Potassium hydrogen phosphate KH2PO4, Phosphoric acid potassium salt (1:1), INS NO.340(I), INS-340(I), Potassium phosphate monobasic NF, Monopotassium dihydrogen monophosphate, Monopotassium dihydrogen orthophosphate, E-340(I), Potassium phosphate monobasic anhydrous, DTXSID0035667, CHEBI:63036, EC 231-913-4, EINECS 240-213-8, POTASSIUM PHOSPHATE MONOBASIC [II], [MI], [FCC], [JAN], [HSDB], [VANDF], [USP-RS], [WHO-DD], EP monograph forms, Potassium phosphate monobasic ORANGE BOOK, TIS-U-SOL component potassium phosphate monobasic, Potassium phosphates component monobasic potassium phosphate, Monobasic potassium phosphate USP-RS, Monobasic potassium phosphate MART., K Phos Original, Kali Phos 3X, 12X, 30X, 200X, Potassium bisphosphate, Kali Phosphoricum 8006, potassium phosphate unspecified form, USEPA OPP pesticide code 076413, Potassium phosphate INCI, potassium dihydrogenphosphate, MFCD00011401, MKP, KDP, potassium dihydrogen orthophosphate V, DB09413, potassium phosphate monobasic HPLC grade, Puratronic grade, trace metals grade, potassium dihydrogen phosphate solution and related reagent preparations, WNK lysine deficient protein kinase 1;Anti-PRKWNK1 (AB2) antibody produced in rabbit;Monobasic Potassium Phosphate (5 g);Potassium dihydrogen phosphate BP2009;Potassium dihydrogen phosphate, extra pure, Ph Eur, BP, NF, E 340;Potassium dihydrogen phosphate, HPLC grade;Potassium dihydrogen phosphate, molecular biology grade;Potassium dihydrogen phosphate/ 99.5+%
E340 Potassium phosphates aqueous solution can react with silver nitrate, generating yellow phosphorus dihydrogen phosphate precipitation, being able to be used as a differential reaction.
E340 Potassium phosphates is a food additive belonging to the class of acidifying, sequestering, stabilising, softening, buffering and neutralising agents antioxidant of inorganic nature.
E340 Potassium phosphates are a group of potassium salts of phosphoric acid, mainly including monopotassium phosphate (KH₂PO₄), dipotassium phosphate (K₂HPO₄), and tripotassium phosphate (K₃PO₄), and they are used as acidity regulators, buffering agents, emulsifiers, stabilizers, and mineral sources in food and industrial applications because they help control pH, stabilize proteins, improve texture, and supply potassium and phosphate.
E340 Potassium phosphates are widely used in processed foods, beverages, and pharmaceutical formulations.
This improves pH control, stability, and nutritional balance.
E340 Potassium phosphates consist of potassium ions (K⁺) combined with phosphate groups (PO₄³⁻) in different ratios, which determines whether they behave as mildly acidic, neutral, or alkaline salts.
E340 Potassium phosphates allows precise control of acidity in complex formulations.
This improves buffering flexibility and formulation precision.
E340 Potassium phosphates appear as white crystalline powders or granules, highly soluble in water, forming clear solutions that can be acidic or alkaline depending on the specific type used.
E340 Potassium phosphates are stable under normal storage conditions and non-volatile.
This improves handling and processing convenience.
E340 Potassium phosphates acts as a buffer system and mineral additive, helping maintain stable pH, prevent protein instability, improve emulsification, and enhance mineral content (potassium and phosphate) in foods and supplements.
This makes them especially important in protein-rich and processed systems.
E340 Potassium phosphates improves stability and functional nutrition.
E340 Potassium phosphates are best described as multifunctional potassium–phosphate salts used to regulate acidity, stabilize formulations, improve texture, and provide essential minerals in food, pharmaceutical, cosmetic, and industrial applications.
E340 Potassium phosphates are also important in protein chemistry and food structure control, because phosphate ions interact strongly with proteins, changing their charge and solubility.
E340 Potassium phosphates allows manufacturers to control whether proteins stay dissolved, form gels, or bind water in a stable structure.
This is a key reason they are widely used in processed foods.
E340 Potassium phosphates improves protein functionality and texture engineering.
In processed meat technology, E340 Potassium phosphates help extract myofibrillar proteins (especially myosin) from muscle tissue, which then form stable emulsions that trap water and fat, improving juiciness and reducing cooking loss.
They are essential in products like sausages and deli meats.
E340 Potassium phosphates improves yield, moisture retention, and product texture.
In dairy chemistry, they help prevent calcium-induced protein aggregation by binding calcium ions and stabilizing casein systems, which is important in UHT milk, creamers, and processed cheese.
This reduces curdling and heat instability.
E340 Potassium phosphates improves thermal stability and dairy consistency.
E340 Potassium phosphates act indirectly by modifying ionic strength and pH, which affects how surfactants and proteins behave at oil–water interfaces, improving stability of sauces, dressings, and processed foods.
They are not primary emulsifiers but strong stabilizing helpers.
E340 Potassium phosphates improves emulsion stability and phase control.
E340 Potassium phosphates is widely used because it can cover a broad pH range depending on the ratio of mono-, di-, and tripotassium forms, making it one of the most flexible phosphate buffer systems in industrial formulations.
This makes it valuable in both acidic and mildly alkaline systems.
E340 Potassium phosphates improves buffering precision and formulation versatility.
Melting point: 252.6 °C (lit.)
Boiling point: > 450 °C
bulk density: 1200 kg/m3
Density: 2.338 g/mL at 25 °C (lit.)
vapor pressure: 0 Pa at 25℃
refractive index: 1.4864
storage temp.: Store at +5°C to +30°C.
solubility: H2O: 1.5 M at 20 °C, clear, colorless
form: powder
Specific Gravity: 2.338
color: White transparent
PH: 4.2–4.6 (20 g/L, H2O, 20℃)
pKa: (1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
Odor: Odorless
biological source: rabbit
Water Solubility: 222 g/L (20 ºC)
Sensitive: Hygroscopic
λmax:
λ: 260 nm, Amax: 0.046
λ: 280 nm, Amax: 0.040
Decomposition: 253 °C
Merck: 14,7659
Specific Activity: 25–33 nmol/min·mg
Stability: Hygroscopic
Cosmetics Ingredients Functions: BUFFERING
InChI: 1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChIKey: GNSKLFRGEWLPPA-UHFFFAOYSA-M
SMILES: [K+].OP(O)([O-])=O
E340 Potassium phosphates are used not only for electrolyte balance but also because phosphate is directly involved in ATP (energy molecule) production, making them relevant in metabolic energy systems.
This supports their use in performance-related formulations.
E340 Potassium phosphates improves metabolic support and functional nutrition.
E340 Potassium phosphates can indirectly reduce spoilage rates by stabilizing pH and limiting conditions that favor microbial growth, although they are not preservatives themselves.
Their main role is stability support rather than antimicrobial action.
E340 Potassium phosphates improves shelf-life stability and quality retention.
In industrial cleaning and detergent systems, E340 Potassium phosphates help soften water by binding calcium and magnesium ions, improving cleaning efficiency and preventing scale formation in equipment.
They also enhance detergent performance in some formulations.
E340 Potassium phosphates improves cleaning efficiency and scale control.
In fertilizer and plant nutrition systems, they provide readily available potassium and phosphorus, supporting root development, flowering, and energy transfer in plants through ATP-related pathways.
They are especially important in high-efficiency liquid fertilizers.
E340 Potassium phosphates improves crop productivity and nutrient delivery.
E340 Potassium phosphates is a fundamental component of DNA, RNA, ATP, and cell membranes, making potassium phosphates closely aligned with essential biological chemistry.
This is why they are widely tolerated in food systems.
This improves biological compatibility and nutritional relevance.
E340 Potassium phosphates are essential nutrients but can cause ecological imbalance when over-released into water systems, so their discharge is carefully regulated to prevent eutrophication.
E340 Potassium phosphates is a major environmental consideration in industrial use.
This improves environmental safety and regulatory control.
E340 Potassium phosphates is the European food additive code for potassium phosphates.
These inorganic salts act as acidity regulators, stabilizers, and emulsifiers in various processed foods.
E340 Potassium phosphates improve texture, extend shelf life, and keep water and fats mixed in products like dairy, baked goods, and powdered beverages.
E340 Potassium phosphates are widely used in protein-based food systems, because they help stabilize proteins by controlling ionic strength and pH, preventing unwanted coagulation or separation in products like processed meats, dairy products, and plant-based alternatives.
They improve water retention and texture in protein-rich foods.
E340 Potassium phosphates improves texture stability and product yield.
In processed meat products, E340 Potassium phosphates are used to increase water-holding capacity, improve juiciness, and stabilize emulsions in sausages, ham, and restructured meat products.
They also help extract and stabilize muscle proteins.
E340 Potassium phosphates improves texture, moisture retention, and product quality.
E340 Potassium phosphates are used to prevent protein precipitation and improve heat stability in milk-based beverages, creamers, and processed cheese systems.
They help maintain smooth texture during processing and storage.
E340 Potassium phosphates improves dairy stability and consistency.
E340 Potassium phosphates are used as a source of both potassium and phosphate, supporting electrolyte balance and energy metabolism in functional beverages.
They also contribute to buffering capacity in drinks.
E340 Potassium phosphates improves hydration and metabolic support.
E340 Potassium phosphates is widely used because it provides precise pH control across acidic to alkaline ranges depending on the specific phosphate form used, making it essential in multi-ingredient formulations.
It is often combined with other phosphate or citrate salts.
E340 Potassium phosphates improves formulation control and pH stability.
E340 Potassium phosphates are used as buffering agents in injectable and oral solutions, helping maintain stable pH for active ingredients and improving drug stability.
They are especially important in sterile liquid preparations.
This improves medicinal stability and effectiveness.
In food processing technology, they help improve emulsification in sauces, dressings, and processed foods by stabilizing fat–water interfaces and improving dispersion of ingredients.
This improves texture and prevents phase separation.
In industrial applications, E340 Potassium phosphates are used in water treatment, detergents, and cleaning systems because they help control pH, soften water, and stabilize chemical mixtures.
E340 Potassium phosphates also act as corrosion inhibitors in some systems.
E340 Potassium phosphates improves process efficiency and system stability.
In agriculture and fertilizers, E340 Potassium phosphates are important nutrient sources, supplying both potassium and phosphorus, which are essential for plant growth, energy transfer, and root development.
E340 Potassium phosphates are widely used in liquid fertilizers.
E340 Potassium phosphates improves plant nutrition and crop yield.
In environmental systems, excessive phosphate release can contribute to eutrophication in water bodies, so industrial discharge is regulated to prevent ecological imbalance.
This makes controlled usage important.
E340 Potassium phosphates improves environmental protection and sustainability management.
Uses:
In the food industry, E340 Potassium phosphates is used for the manufacture of baked goods, for leavening agent, flavoring agent, fermentation additives, nutritional fortifiers, yeast food. Also used as a buffer, chelating agent.
E340 Potassium phosphates can be used as fertilizer, flavoring agent and the culture agent of brewing yeast; used for the preparation of buffer solution, also used in medicine and manufacturing of potassium metaphosphate.
E340 Potassium phosphates can be used for the fertilization of rice, wheat, cotton, rape, tobacco, sugar cane, apple and other crops.
E340 Potassium phosphates can be used as chromatography reagents and buffer, but also for the synthesis of medicine.
As a highly efficient fertilizer, it is suitable for all kinds of soil and crops.
E340 Potassium phosphates can also used as a bacterial culture agent, the flavoring agent for the synthesis of sake and the raw material for making potassium metaphosphate.
In medicine, it is used for the uric acidification as a nutritional agent.
Used as feed nutritional supplements;As a quality improver, it has effects of improving the complexation metal ions and pH value, increasing the ionic strength of food, and thus improving the adhesion and water holding capacity of food.
E340 Potassium phosphates are mainly used as acidity regulators, buffering agents, emulsifiers, stabilizers, and mineral sources because they help control pH, stabilize proteins, improve texture, and provide potassium and phosphate.
In processed foods, they are used to stabilize proteins and improve texture.
E340 Potassium phosphates improves moisture retention and product quality.
In meat and dairy products, they are used to enhance water retention and stability.
E340 Potassium phosphates improves juiciness and consistency.
In beverages and sports drinks, they are used as buffering agents and electrolytes.
E340 Potassium phosphates improves hydration and mineral balance.
In pharmaceuticals, they are used as pH buffers in liquid formulations.
E340 Potassium phosphates improves drug stability and effectiveness.
In industrial systems, E340 Potassium phosphates are used for pH control and water treatment.
This improves process stability and efficiency.
E340 Potassium phosphates is a specialty fertilizer that is a good source of phosphorus and potassium.
It is an acid, chloride-free, dry soluble fertilizer, and is a natural pH buffer with a buffer pH in pure water of 4.5. Monopotassium phosphate can be solubilized and blended with liquid fertilizers that will not salt out at a low pH, and is also safe to use as a foliar fertilizer.
E340 Potassium phosphates are mainly used as buffering agents, acidity regulators, emulsifiers, stabilizers, and mineral sources because they help control pH, stabilize proteins, improve texture, and supply potassium and phosphate.
In processed meats, they are used to improve water retention and texture.
This improves juiciness and product yield.
In dairy products, E340 Potassium phosphates are used to stabilize proteins and prevent curdling.
E340 Potassium phosphates improves heat stability and consistency.
In beverages, they are used as buffers and electrolytes.
E340 Potassium phosphates improves hydration and pH control.
In pharmaceuticals, they are used as buffering agents in liquid formulations.
E340 Potassium phosphates improves drug stability.
In industrial systems, E340 Potassium phosphates are used for pH control, cleaning, and water treatment.
This improves process efficiency and stability.
E340 Potassium phosphates are mainly used as buffering agents, acidity regulators, emulsifiers, stabilizers, and mineral sources because they help control pH, stabilize proteins, improve texture, and supply potassium and phosphate in food and industrial systems.
In processed foods, E340 Potassium phosphates are used to regulate acidity and improve texture by stabilizing proteins and controlling water binding, especially in complex formulations.
E340 Potassium phosphates improves consistency and product quality.
In meat products, they are used to increase water-holding capacity, improve juiciness, and stabilize emulsions in sausages, ham, and processed meats.
E340 Potassium phosphates improves yield, tenderness, and moisture retention.
In dairy products, they are used to prevent protein instability and curdling, especially in heat-treated milk, creamers, and processed cheese.
E340 Potassium phosphates improves thermal stability and smooth texture.
In beverages and sports drinks, E340 Potassium phosphates are used as buffering agents and electrolyte sources, helping maintain pH stability and support mineral balance.
This improves hydration and formulation stability.
In pharmaceutical formulations, E340 Potassium phosphates are used as pH buffers in liquid medicines and injectable solutions, helping maintain stable conditions for active ingredients.
E340 Potassium phosphates improves drug stability and effectiveness.
In industrial systems, they are used for water treatment, cleaning formulations, and pH control, where they help soften water and stabilize chemical processes.
E340 Potassium phosphates improves efficiency and system stability.
Safety Profile:
E340 Potassium phosphates are generally considered low hazard substances, especially in regulated food use, because they are based on potassium and phosphate ions that are naturally involved in human metabolism.
However, risks can still occur with high intake or industrial exposure.
The main hazard is mild irritation of the eyes, skin, and respiratory system, mainly from exposure to dust in industrial settings or concentrated solutions.
E340 Potassium phosphates is a physical irritation effect rather than strong chemical toxicity.
This improves workplace safety awareness.
Skin contact is generally low risk, though prolonged exposure to concentrated solutions may cause slight dryness or irritation in sensitive individuals.
Eye contact may cause mechanical irritation, especially from fine powder or splashes of concentrated solution.
Protective eyewear is recommended in manufacturing environments.
E340 Potassium phosphates improves handling safety.
Inhalation of dust may cause temporary respiratory irritation, particularly in poorly ventilated areas during handling of powdered forms.
Dust control and ventilation are recommended.
E340 Potassium phosphates improves occupational health safety.
From a toxicological perspective, E340 Potassium phosphates are considered safe within regulated dietary limits, but excessive phosphate intake over long periods may contribute to mineral imbalance, especially in individuals with kidney disorders, because phosphate regulation is closely linked to kidney function.
E340 Potassium phosphates requires controlled consumption in sensitive populations.
E340 Potassium phosphates improves nutritional safety awareness.
From a medical standpoint, imbalance of phosphate levels (if intake is extremely high or excretion is impaired) can affect calcium balance and bone metabolism, but this is not a concern under normal food use conditions.
