Potassium bicarbonate

Base Information

• Chemical Name: Potassium bicarbonate
• CAS No.: 298-14-6
• Molecular Formula: KHCO3
• Molecular Weight: 100.115
• Hs Code.: 2836.40
• Mol file: 298-14-6.mol

Synonyms:Monopotassium carbonate;EPA Pesticide Chemical Code 073508;Purple K;Potassium acid carbonate;Kaligreen;potassium hydroxyformate;Potassium hydrogen carbonate;Carbonic acid,compounds,monopotassium salt;

Chemical Property of Potassium bicarbonate

Chemical Property:

• Appearance/Colour: white powder or crystals
• Melting Point: 292 °C
• Boiling Point: 333.6 °C at 760 mmHg
• PKA: 10.33(at 25℃)
• Flash Point: 169.8 °C
• PSA: 60.36000
• Density: 2,17 g/cm³
• LogP: -1.11230
• Storage Temp.: Store at RT.
• Solubility.: H2O: 1 M at 20 °C, clear, colorless
• Water Solubility.: Soluble in water. Insoluble in alcohol.

Purity/Quality:

99% ^*data from raw suppliers

Potassium bicarbonate ^*data from reagent suppliers

Safty Information:

• Pictogram(s): F, T, C, Xi
• Hazard Codes: F,T,C,Xi
• Statements: 22-35
• Safety Statements: 24/25-45-36/37/39-26

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• description: 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. It 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, it is very important to maintain normal potassium levels. However, if you are potentially taking this medication, it is important to be aware of the risks and potential side effects.
• 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 It 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
• Uses: 1,It 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 2,It is commonly used as analytical reagents 3,It can be used as acidity regulator and chemical leavening agent. Our country provides that it can be used to add to various types of leavening agent of food for appropriate use according to the production demand. 4,It 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. It can also be used for medicine, baking powder. Potassium Bicarbonate is an alkali and leavening agent obtained as colorless prisms or white powder. it 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. it is also used in confec- tionary products. Used as a buffer. In baking powders, effervescent salts.

Technology Process of Potassium bicarbonate

There total 39 articles about Potassium bicarbonate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 1.0%

carbon dioxide (124-38-9,18923-20-1) + carbon monoxide (201230-82-2) + potassium carbonate (584-08-7) → potassium formate (590-29-4) + potassium oxalate (583-52-8) + potassium hydrogencarbonate (298-14-6)

Guidance literature:

In neat (no solvent); High Pressure; 2 h at 380°C; cooling, dissolution in water, addn. of HClO4; HPLC;

DOI:10.1039/c39950000633

Reference yield:

dipotassium DL-malate → potassium carbonate (584-08-7) + potassium hydrogencarbonate (298-14-6)

Guidance literature:

manganese(II) sulfate; In water; Irradiation (UV/VIS); illumination for several days;

Reference yield:

potassium succinate (676-47-1,22445-04-1,34717-22-1,50741-11-2,51658-28-7) → potassium carbonate (584-08-7) + potassium hydrogencarbonate (298-14-6)

Guidance literature:

manganese(II) sulfate; In water; Irradiation (UV/VIS); illumination for several days;

upstream raw materials:

carbon dioxide

water

potassium carbonate

hydrogen sulfide

Downstream raw materials:

(2-ethoxycarbonylmethylene-3-methoxycarbonyl-3-methyl-6-phenyl-cyclohexyl)-acetic acid

3-Acetylgitoxigenin

2,3,4-trihydroxybenzoic acid

Dimethyl ether

Refernces

• 1、 Firman, Nur Faiizah Aqiilah,Noor, Alfian,Zakir, Muhammad,Maming,Fathurrahman, Achmad Fuad. "Absorption of carbon dioxide into potassium hydroxide: Preliminary study for its application into liquid scintillation counting procedure". . p. 4907 - 4912. Retrieved 2021/08/31.
• 2、 Huang, Jianfeng,Mensi, Mounir,Oveisi, Emad,Mantella, Valeria,Buonsanti, Raffaella. "Structural Sensitivities in Bimetallic Catalysts for Electrochemical CO2 Reduction Revealed by Ag-Cu Nanodimers". . p. 2490 - 2499. Retrieved 2019/03/04.