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Potassium bicarbonate is used as an antacid, electrolyte replenisher and potassium supplement.
Potassium bicarbonate can also be used as an excipient in drug formulations.
An antacid is a medication used to neutralize gastric acid in a short timeframe after ingestion and the effect is soon overcome by meal-stimulated acid secretion.
CAS: 298-14-6
MF: CHKO3
MW: 100.12
EINECS: 206-059-0
Synonyms
POTASSIUM ACID CARBONATE;POTASSIUM BICARBONATE;POTASSIUM HYDROGEN CARBONATE;Carbonicacid,monopotassiumsalt;Carbonicacidmonopotassiumsalt;bicarbonate;Potassium hydrogen carbonate, ACS (dried basis);Potassium hydrogen carbonate, 99.7+%, for analysis
Potassium bicarbonate for the production of potassium carbonate, potassium acetate, potassium arsenite and other raw materials, but also for food, pharmaceuticals, fire extinguisher materials, antacids, and hair/skin products.
Potassium bicarbonate has also been employed in studies of renal disorders and the relationship of muscle injury to this process.
Has been shown to inhibit the growth of Aspergillus parasiticus in Czapek's agar, and also in alflatoxin synthesis.
Potassium bicarbonate is produced by reacting potassium carbonate liquid with carbon dioxide, then recrystallizing it.
All equipment from production to packaging is dedicated solely to potassium bicarbonate.
Potassium bicarbonate is a widely used reagent in research.
Potassium bicarbonate is employed as a catalyst in synthetic fiber polymerization and olefin dehydrogenation.
Potassium bicarbonate is a bubbly medication that is used to neutralize acid in the stomach and boost potassium levels in those whose bodies are experiencing severe potassium deficiencies.
Because the body requires potassium for a number of functions, Potassium bicarbonate is very important to maintain normal potassium levels.
However, if you are potentially taking this medication, Potassium bicarbonate is important to be aware of the risks and potential side effects.
A potassium salt that is the monopotassium salt of carbonic acid.
Potassium bicarbonate has fungicidal properties and is used in organic farming for the control of powdery mildew and apple scab.
Potassium bicarbonate is water soluble alkaline potassium salt with monoclinic crystalline structure.
Potassium bicarbonate is a raw material for the synthesis of many potassium compounds.
Potassium bicarbonate is a better coolant than sodium bicarbonate in the aerosol fire extinguishing apparatus.
Potassium bicarbonate shows potential as an antifungal agent.
Potassium bicarbonate Chemical Properties
Melting point: 292 °C
density: 2,17 g/cm3
storage temp.: Store at +15°C to +25°C.
solubility: H2O: 1 M at 20 °C, clear, colorless
form: fine crystals
pka: 10.33(at 25℃)
color: White
Specific Gravity: 2.17
Odor: Odorless
PH Range: 8 - 9
PH: 8.27(1 mM solution);8.25(10 mM solution);8.13(100 mM solution);
Water Solubility: Soluble in water. Insoluble in alcohol.
λmax λ: 260 nm Amax: 0.010
λ: 280 nm Amax: 0.01
Merck: 14,7609
BRN: 4535309
Stability: Stable.
Cosmetics Ingredients Functions BUFFERING
InChI: 1S/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
InChIKey: TYJJADVDDVDEDZ-UHFFFAOYSA-M
CAS DataBase Reference: 298-14-6(CAS DataBase Reference)
EPA Substance Registry System: Potassium bicarbonate (298-14-6)
Potassium bicarbonate is a GRAS food ingredient.
Potassium bicarbonate appears as colorless transparent monoclinic crystal, being soluble in water but insoluble in alcohol.
Potassium bicarbonate is stable under normal conditions.
Potassium bicarbonate contains no toxic chemicals and is not listed as a carcinogen or potential carcinogen.
Potassium bicarbonate is a widely used reagent in research and industrial applications.
Potassium bicarbonate is used in crop fertilization and soil maintenance in agriculture, as a dry powder ingredient in fire extinguishers, and as a catalyst in synthetic fiber polymerization and olefin dehydrogenation.
Potassium bicarbonate occurs as colorless, transparent crystals or as a white granular or crystalline powder.
Potassium bicarbonate is odorless, with a saline or weakly alkaline taste.
Uses
Potassium bicarbonate can be used for the production of potassium carbonate, potassium acetate and potassium arsenite as well as other raw materials, but also for medicine, food, fire extinguishing agent and other industries
Potassium bicarbonate is commonly used as analytical reagents
Potassium bicarbonate can be used as acidity regulator and chemical leavening agent.
Potassium bicarbonate is the raw material for the production of potassium carbonate, potassium acetate and potassium arsenite, being able to used as the extinguishing agent for oil and chemicals.
Potassium bicarbonate can also be used for medicine, baking powder.
Potassium Bicarbonate is an alkali and leavening agent obtained as colorless prisms or white powder.
Potassium bicarbonate is very soluble, with 1 g dis- solving in 2.8 ml of water.
upon heating, it liberates carbon dioxide which provides leavening in baked goods.
Potassium bicarbonate is also used in confec- tionary products.
Alkali metal carbonates and bicarbonates have wide-ranging pharmaceutical applications.
Potassium bicarbonate or citrate is used in over-the-counter drugs as active pharmaceutical ingredients (APIs) against urinary-tract infections (increasing the pH of the urine) in the United Kingdom.
Oralbicarbonate solutions such as potassium bicarbonate are typically given orally for chronic acidosis states low pH of the blood plasma.
Potassium bicarbonate can be again due to impaired kidney function.
The use of potassium bicarbonate for the treatment of acidosis has to be carefully evaluated, as even small changes of the potassium plasma levels can have severe consequences.
Agricultural Uses
Potassium bicarbonate, also called potassium hydrogen carbonate, is a white crystalline solid, soluble in water (insoluble in ethanol).
Potassium bicarbonate decomposes at about 120°C. Potassium bicarbonate contains about 28% potassium (K2O) and used as a potassium supplying fertilizer.
Potassium bicarbonate, which occurs naturally as calcinite, is made by passing carbon dioxide into saturated potassium carbonate solution.
Potassium bicarbonate is used as baking powder and as a fire extinguisher.
Pharmaceutical Applications
As an excipient, potassium bicarbonate is generally used in formulations as a source of carbon dioxide in effervescent preparations, at concentrations of 25–50% w/w.
Potassium bicarbonate is of particular use in formulations where sodium bicarbonate is unsuitable, for example, when the presence of sodium ions in a formulation needs to be limited or is undesirable.
Potassium bicarbonate is often formulated with citric acid or tartaric acid in effervescent tablets or granules; on contact with water, carbon dioxide is released through chemical reaction, and the product disintegrates.
On occasion, the presence of potassium bicarbonate alone may be sufficient in tablet formulations, as reaction with gastric acid can be sufficient to cause effervescence and product disintegration.
Potassium bicarbonate has also been investigated as a gasforming agent in alginate raft systems.
The effects of potassium bicarbonate on the stability and dissolution of paracetamol and ibuprofen have been described.
Potassium bicarbonate is also used in food applications as an alkali and a leavening agent, and is a component of baking powder.
Therapeutically, potassium bicarbonate is used as an alternative to sodium bicarbonate in the treatment of certain types of metabolic acidosis.
Potassium bicarbonate is also used as an antacid to neutralize acid secretions in the gastrointestinal tract and as a potassium supplement.
Food and drink
Potassium bicarbonate is a source of carbon dioxide for leavening in baking.
Potassium bicarbonate can substitute for baking soda (sodium bicarbonate) for those with a low-sodium diet, and it is an ingredient in low-sodium baking powders.
As an inexpensive, nontoxic base, Potassium bicarbonate is widely used in diverse application to regulate pH or as a reagent.
Examples include as buffering agent in medications and as an additive in winemaking.
Potassium bicarbonate is often added to bottled water to improve taste, and is also used in club soda.
Medical uses and health
Higher potassium intake may prevent development of kidney stone disease.
Higher potassium intake is associated with a reduced risk of stroke.
Fire extinguishers
Potassium bicarbonate is used as a fire suppression agent ("BC dry chemical") in some dry chemical fire extinguishers, as the principal component of the Purple-K dry chemical, and in some applications of condensed aerosol fire suppression.
Potassium bicarbonate is the only dry chemical fire suppression agent recognized by the U.S. National Fire Protection Association for firefighting at airport crash rescue sites.
Potassium bicarbonate is about twice as effective in fire suppression as sodium bicarbonate.
Agriculture
Potassium bicarbonate has widespread use in crops, especially for neutralizing acidic soil.
Potassium bicarbonate is an effective fungicide against powdery mildew and apple scab, allowed for use in organic farming.
Potassium bicarbonate is a contact killer for Spanish moss when mixed 1⁄4 cup per gallon.
Benefits
Sodium bicarbonate and potassium bicarbonate are key components of body tissues that help regulate the body’s acid/base balance.
This formula of buffered mineral compounds can assist in reestablishing the acid/base balance when the body’s own bicarbonate reserves are depleted because of metabolic acidosis caused by adverse reactions to food or other environmental exposures.
Potassium bicarbonate is excellent for heart health, If a person does not have enough potassium in the body, a condition known as hypokalemia, negative symptoms can occur.
These include fatigue, muscle cramping, constipation, bloating, muscle paralysis and potentially life-threatening heart rhythms, according to the Linus Pauling Institute.
Taking potassium bicarbonate can help to reduce these symptoms.
Potassium bicarbonate also can lower blood pressure and reduce the risk of developing kidney stones.
Production method
Carbonation way: potassium carbonate can be used as three-grade product as well as alkali as raw materials, including potassium carbonate 40% to 60%, potassium sulfate 10% to 15%, potassium chloride 3.5%.
Before feeding, it should be calcined to remove organic matter, taking advantage of the different solubility to remove potassium sulfate and potassium chloride.
Addition of lime milk or magnesium carbonate can be used to remove silicon, aluminum, phosphorus and other impurities through pressure filtration.
The filtrate, after evaporation, is used for preparation of potassium carbonate solution so that the total alkali concentration is 750~800 g/L (in potassium carbonate) before being sent into the carbonation tower.
Carbonization is carried out at a temperature of 50 °C or higher and at a reaction pressure of 0.4 MPa with sending carbon dioxide (concentration of 30% or more).
The potassium bicarbonate is continuously precipitated with increasing concentration.
After 5~6h carbonation, the mother liquor was separated by crystallization, washed, centrifuged and dried at 80 ℃ to obtain the product of potassium bicarbonate.
Its reaction equation is:
K2CO3 + CO2 + H2O → 2KHCO3
Ion exchange method:
The potassium chloride solution is countercurrent passed through the ion exchange column after removing calcium and magnesium, making the (R-Na) be converted into potassium type (RK).
Wash with soft water to remove the chloride ions, make the ammonium bicarbonate solution flow downstream through the resin exchange column, obtaining the mixed dilute solution of potassium bicarbonate and ammonium bicarbonate.
The dilute solution is mostly decomposed into potassium carbonate after evaporation decomposition.
The solution is further sent to the carbonation tower for carbonation of potassium bicarbonate, and then by crystallization, separation, washing and drying to obtain the potassium bicarbonate products.
Its
R-Na + KCl → R-K + NaCl
R-K + NH4HCO3 → R-NH4 + KHCO3
2KHCO3 → K2CO3 + CO2 ↑ + H2O
K2CO3 + CO2 + H2O → 2KHCO3
Potassium bicarbonate is obtained through the absorption of carbon dioxide via the 80% ethanol solution of potassium hydroxide or potassium carbonate saturated solution.
K2CO3 + CO2 + H2O → 2KHCO3
Production Methods
Potassium bicarbonate can be made by passing carbon dioxide into a concentrated solution of potassium carbonate, or by exposing moist potassium carbonate to carbon dioxide, preferably under moderate pressure.
Potassium bicarbonate also occurs naturally in the mineral calcinite.
Production and reactivity
Potassium bicarbonate is manufactured by treating an aqueous solution of potassium carbonate or potassium hydroxide with carbon dioxide:
K2CO3 + CO2 + H2O → 2 KHCO3
Decomposition of the bicarbonate occurs between 100 and 120 °C (212 and 248 °F):
2 KHCO3 → K2CO3 + CO2 + H2O
This reaction is employed to prepare high purity potassium carbonate.
