Name | Potassium citrate monohydrate |
Synonyms | KALII CITRAS TRI-POTASSIUM CITRATE H2O POTASSIUM CITRATE TRIBASIC POTASSIUM CITRATE-1-HYDRATE Potassium citrate monohydrate POTASSIUM CITRATE, MONOHYDRATE TRIPOTASSIUM CITRATE MONOHYDRATE tripotassium citrate monohydrate tri-Potassium citrate monohydrate POTASSIUM CITRATE TRIBASIC HYDRATE POTASSIUM CITRATE, TRIBASIC MONOHYDRATE Potassium citrate, tribasic monohydrate citric acid tripotassium cell culture*tested monohydrate tripotassium 2-hydroxypropane-1,2,3-tricarboxylate hydrate tripotassium 2-hydroxypropane-1,2,3-tricarboxylate dihydrate tripotassium 2-hydroxypropane-1,2,3-tricarboxylate monohydrate |
CAS | 6100-05-6 |
EINECS | 612-062-1 |
InChI | InChI=1/C6H8O7.3K.2H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;;2*1H2/q;3*+1;;/p-3 |
InChIKey | PJAHUDTUZRZBKM-UHFFFAOYSA-K |
Molecular Formula | C6H11KO8 |
Molar Mass | 250.24 |
Density | 1.98 |
Melting Point | 275°C (dec.)(lit.) |
Water Solubility | Soluble in water and glycerol. Practically insoluble in alcoholSoluble in water and glycerol. Insoluble in alcohol |
Solubility | G is soluble in 0-65ml of water, slowly soluble in 2-5ml of glycerol, insoluble in ethanol. |
Appearance | White crystal or powder |
Specific Gravity | 1.98 |
Color | White crystalline |
Odor | Odorless |
Merck | 14,7623 |
BRN | 3924344 |
PH | 7.5-9.0 (25℃, 50mg/mL in H2O) |
Storage Condition | Inert atmosphere,Room Temperature |
Stability | Stable. Incompatible with strong oxidizing agents. |
Sensitive | Easily absorbing moisture |
MDL | MFCD00150442 |
Use | Analytical reagents. Prepare buffer solution. Gold plating. |
Risk Codes | R22 - Harmful if swallowed R35 - Causes severe burns |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 1 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 29181500 |
White crystalline granules or powder. Deliquescence. 1g of the product is soluble in 0.65mL water, slowly soluble in 2.5ml glycerol, insoluble in ethanol. Its aqueous solution is alkaline to litmus. The pH value is about 8.5. Loss of water of crystallization at 180 °c.
citric acid was added to the potassium hydroxide solution for reaction, and the crystals were concentrated.
Common analytical reagents. Used in buffer solution preparation, electroplating and pharmaceutical industry.
pH range | 8-9.5 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Overview | food grade potassium citrate is an important chemical raw material, used in the food industry as a buffer, chelating agent, stabilizer, antioxidants, emulsifiers, flavoring agents, etc., can be used for milk and dairy products, jelly, jam, meat, canned hydrogel snacks, cheese emulsification, Citrus Preservation, etc. |
Application | as a food additive, food grade potassium citrate can be used to adjust the acidity and potassium nutritional supplement source; in the pharmaceutical industry for hypokalemia and potassium deficiency and alkalinizing urine, helps to reduce the acidity of urine, has the effect of treating kidney disease and gout; Can also be made into efficient compound fertilizer, it can also be used in papermaking, gold plating and other industries. |
preparation | weigh 608.27G of liquid potassium hydroxide having a content of 48% and draw it into a stirring apparatus, and turn on the stirring speed 200r/ min. Weigh 333.33 grams of food grade citric acid solids, slowly add to the stirring equipment, add, adjust the speed of 400r/min. After 30min of reaction, the material gradually became viscous and paste-like. At this time, the material temperature was 28 ° C. At normal temperature. After the reaction time is 9 hours, 1g of sample is taken, dissolved in 20ml of carbon dioxide-free water, the material is completely dissolved, the pH is 10.2, the reaction is completed, and the product is directly dried by steam in the stirring equipment for 2 hours to obtain the finished product. The content of potassium citrate was 100.1%, and other indexes met the requirements of the national standard. |
content analysis | accurately weigh about 250mg of sample pre-dried at 180 ℃ for 4H, add 40ml of glacial acetic acid, warm to complete dissolution. After cooling to room temperature, 2 drops of crystal violet solution (TS-74) were added and titrated with 0.1mol/L perchloric acid. At the same time, the blank test was carried out and corrected. Per mL of 0.1mol/L perchloric acid corresponds to 10.213mg of potassium citrate (C6H5K3O7). |
toxicity | ADI is not specified (FAO/WHO,2001). GRAS(FDA,§ 182.1625,2000). |
usage limit | GB 2760-96: all kinds of food, GMP. GB 2760 -- 2002(mg/1000g, as a potassium source for fortification): infant formula powder ≤ 400; Older infant formula powder 1500; the infants and young children were supplemented with cereal powder (200, 1000). FAO/WHO(1984,g/kg): evaporated milk, sweetened condensed milk, cream alone 2, combined with other stabilizers 3 (based on anhydrous, the same below); Milk powder, dehydrated Cream 5; processed cheese 40; Keep the pH of jam and orange peel jelly at 2.8 to 3.5, margarine, baby food, cold drinks, edible caseinate, etc., are GMP. |
Use | analytical reagent. A buffer solution was prepared. Gold-plated. |