Dipotassium Phosphate or Potassium Phosphate Dibasic BP Ph Eur USP FCC Food grade Analytical Reagent Manufacturers |
Supplier, Manufacturer, Exporter of Dipotassium Phosphate or Potassium Phosphate Dibasic, Muby Chemicals of Mubychem Group, established in 1976, is the original manufacturers of Specialty Chemicals, Pharmaceutical Excipient, Fragrance Food & Flavor chemicals, Reagent Grade Chemicals, Shale Gas Fracturing Chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India and world wide contacts and toll manufacturers. We are exporting globally to countries like USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Dubai, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, China, Germany, France, Italy, Portugal Bangladesh, etc. The products are offered as per required specifications and in correct shape and size in mm or meshs or microns as specified by the buyer. The participating units have one or more accreditations like FDA - cGMP and GLP approval, ISO-9001 Certified, "REACH" Registered, ISO-14001, ISO/IEC 17025, ISO-22000, FSSC 22000, ISO 45001, Kosher Certified, Halal Certified, HACCP, FSSAI. We offer Commercial Pure & IP BP EP Ph Eur USP NF JP FCC Food Grade Analytical Reagent Grades of Chemicals |
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Dibasic Potassium Phosphate CAS Number 7758-11-4, EINECS EC Number 231-834-5, HS Code 283524**, Molecular Weight 174, Chemical Formula: K2HPO4
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Potassium Phosphate Dibasic
Di Potassium Phosphate, Dipotassium Phosphate, Dibasic Potassium Phosphate Suppliers
Dibasic Potassium Phosphate Dibasic
Di Potassium Phosphate Commercial Pure Specifications
Appearance: Fine White Crystals
Purity: 96% min
pH 1%: 8.7 - 9.3
Sulphate: 0.02% max
Heavy Metals: 10 ppm max
Arsenic: 4 ppm max
Moisture: 5% max
Insoluble: 0.1% max
Dipotassium Hydrogen Phosphate BP Ph Eur Grade Specifications
Dipotassium Phosphate BP
K2HPO4 -- 174.2 -- CAS 7758-11-4
Dibasic Potassium Phosphate BP
Potassium Phosphate Dibasic BP
DEFINITION
Dipotassium phosphate contains not less than 98.0 per cent and not more than the equivalent of 101.0 per cent of K2HPO4, calculated with reference to the dried substance.
CHARACTERS
A white powder or colourless crystals, very hygroscopic, very soluble in water, very slightly soluble in alcohol.
IDENTIFICATION
A. Solution S (see Tests) is slightly alkaline
B. Solution S gives reaction of phosphates.
C. Solution S gives reaction of potassium.
TESTS
Solution S: Dissolve 5.0 g in distilled water and dilute to 50 ml with the same solvent.
Appearance of solution: Solution S is clear and colourless.
Reducing substances: Heat on a water-bath for 5 min a mixture of 5 ml of solution S, 5 ml of dilute sulphuric acid and 0.25 ml of 0.02 M potassium permanganate. The solution remains faintly pink.
Chlorides: To 2.5 ml of solution S add 10 ml of dilute nitric acid and dilute to 15 ml with water. The solution complies with the limit test for chlorides (200 ppm).
Sulphates: To 1.5 ml of solution S add 2 ml of dilute hydrochloric acid and dilute to 15 ml with distilled water. The solution complies with the limit test for sulphates (0.1 per cent).
Arsenic: 5 ml of solution S complies with limit test A for arsenic (2 ppm).
Iron: 10 ml of solution S complies with the limit test for iron (10 ppm).
Heavy metals: Dissolve 2.0 g in 8 ml of water. Acidify with about 6 ml of dilute hydrochloric acid (pH 3 to 4) and dilute to 20 ml with water. 12 ml of the solution complies with limit test A for heavy metals (10 ppm).
Sodium: If intended for use in the manufacture of parenteral dosage forms, it contains not more than 0.1 per cent of Na, determined by atomic emission spectrometry.
Loss on drying
Not more than 2.0 per cent, determined on 1.000 g by drying in an oven at 125C to 130C.
Bacterial endotoxins: Less than 1.1 IU/mg, if intended for use in the manufacture of parenteral dosage forms without a further appropriate procedure for the removal of bacterial endotoxins.
Dibasic Potassium Phosphate USP Grade Specifications
Dipotassium Phosphate USP Grade Specifications
Dibasic Potassium Phosphate USP
Potassium Phosphate Dibasic USP
K2HPO4 174.18
Phosphoric acid, dipotassium salt.
Dipotassium hydrogen phosphate CAS 7758-11-4
Dibasic Potassium Phosphate contains not less than 98.0 percent and not more than 100.5 percent of K2HPO4, calculated on the dried basis.
Identification: A solution (1 in 20) responds to the tests for Potassium and for Phosphate.
pH: between 8.5 and 9.6, in a solution (1 in 20).
Loss on drying: Dry it at 105 to constant weight: it loses not more than 1.0% of its weight.
Insoluble substances: Dissolve 10 g in 100 mL of hot water, filter through a tarred filtering crucible, wash the insoluble residue with hot water, and dry at 105 for 2 hours: the weight of the residue so obtained does not exceed 20 mg (0.2%).
Carbonate: To 1 g add 3 mL of water and 2 mL of 3 N hydrochloric acid: not more than a few bubbles are evolved.
Chloride: A 1.0-g portion shows no more chloride than corresponds to 0.40 mL of 0.020 N hydrochloric acid (0.03%).
Sulfate: A 0.20-g portion shows no more sulfate than corresponds to 0.20 mL of 0.020 N sulfuric acid (0.1%).
Arsenic: 3 ppm.
Iron: the limit is 0.003%.
Sodium: A solution (1 in 10) tested on a platinum wire imparts no pronounced yellow color to a non-luminous flame.
Heavy metals: the limit is 0.001%.
Limit of fluoride: The limit is 0.001%.
Limit of monobasic or tribasic salt: Dissolve 3 g in 30 mL of water, cool to 20C, and add 3 drops of thymol blue TS: a blue color is produced, which is changed to yellow (with a greenish tinge) by the addition of not more than 0.4 mL of 1 N hydrochloric acid.
Potassium Phosphate Dibasic FCC Food Grade Specifications
Dipotassium Monophosphate, Dipotassium Phosphate FCC Food Grade
Dibasic Potassium Phosphate FCC Food Grade Specifications
K2HPO4 Formula weight 174.18
INS: 340(ii) CAS: 7758-11-4
DESCRIPTION
Potassium Phosphate, Dibasic, occurs as a colorless or white, granular salt that is deliquescent when exposed to moist air. One gram is soluble in about 3 mL of water. It is insoluble in alcohol. The pH of a 1% solution is about 9.
Function: Buffer; sequestrant; yeast food.
REQUIREMENTS
Identification: A 1:20 aqueous solution gives positive tests for Potassium and for Phosphate.
Assay: Not less than 98.0% of K2HPO4 after drying.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 10 mg/kg.
Insoluble Substances: Not more than 0.2%.
Lead: Not more than 2 mg/kg.
Loss on Drying: Not more than 2.0%.
Potassium Phosphate Dibasic Analytical Reagent Grade Specifications
Dibasic Potassium Phosphate Analytical Reagent
Dipotassium Phosphate Analytical Reagent
Dipotassium Hydrogen Phosphate
K2HPO4
Formula Weight 174.18
CAS Number 7758-11-4
REQUIREMENTS
Assay: 98.0% K2HPO4
pH of a 5% solution: 8.5-9.6 at 25C
MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Loss on drying at 105C: 1.0%
Chloride (Cl): 0.003%
Nitrogen compounds (as N): 0.001%
Sulfate (SO4): 0.005%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 0.001%
Sodium (Na): 0.05%
Dipotassium phosphate (K2HPO4) - also phosphoric acid, dipotassium salt; dipotassium hydrogen orthophosphate; potassium phosphate, dibasic - is a highly water-soluble salt which is often used as a fertilizer, food additive and buffering agent. It is a common source of phosphorus and potassium. As a food additive, Dipotassium phosphate is on the FDA's Generally recognized as safe, or GRAS, list of substances. It is used in non-dairy creamers to prevent coagulation. The dipotassium salt, K2HPO4 is used alone or in combination with other phosphate compounds as an electrolyte replenisher.
Potassium Phosphate, Dibasic, Anhydrous (K2HPO4) is a reagent with a very high buffering capacity. Widely used in molecular biology, biochemistry, and chromatography. Neutral potassium phosphate buffer solutions may be prepared with a mixture of the monobasic and dibasic forms to varying degrees, depending on the desired pH. Potassium Phosphate buffers are very useful in numerous applications. It has been used to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes; it was found that KP buffers offered improved pH stability as opposed to NaP buffers. Potassium Phosphate has also been used for the extraction of keratohyalin protein from bovine tissue.
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Last
11 July, 2024
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