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Dipotassium hydrogen phosphate

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Identification
Molecular formula
K2HPO4
CAS number
7758-11-4
IUPAC name
dipotassium;hydrogen phosphate
State
State

At room temperature, dipotassium hydrogen phosphate is a solid. It is stable under normal conditions and remains non-volatile, making it suitable for use in various applications such as a buffering agent in pharmaceuticals and food processing.

Melting point (Celsius)
340.00
Melting point (Kelvin)
613.00
Boiling point (Celsius)
100.00
Boiling point (Kelvin)
373.00
General information
Molecular weight
174.18g/mol
Molar mass
174.1780g/mol
Density
2.4400g/cm3
Appearence

Dipotassium hydrogen phosphate typically appears as a white, crystalline powder. It is an odorless compound that is highly soluble in water, forming a colorless solution.

Comment on solubility

Solubility of Dipotassium Hydrogen Phosphate

Dipotassium hydrogen phosphate, often referred to as K2HPO4, is a compound that exhibits notable water solubility characteristics. Here are some key points to consider:

  • Highly Soluble: K2HPO4 is known to be quite soluble in water, making it useful in various applications, including fertilizers and food additives.
  • Solubility in Other Solvents: While it is highly soluble in water, the solubility in organic solvents is minimal, indicating its strong ionic nature.
  • Temperature Dependence: Like many salts, the solubility of K2HPO4 can increase with temperature, which should be taken into account when preparing solutions.

In practical applications, the solubility of dipotassium hydrogen phosphate adds to its versatility, with usage in biological and chemical processes. Keep in mind that the solution's pH can also affect other solubility equilibria in mixed systems, often leading to precipitation reactions with certain ions.

In summary, K2HPO4 is a soluble compound, valued for its ability to easily dissolve in water, enhancing its practical applicability across various fields.

Interesting facts

Interesting Facts about Dipotassium Hydrogen Phosphate

Dipotassium hydrogen phosphate, a widely utilized chemical compound, has numerous applications in different fields due to its unique properties. Here are some fascinating facts concerning this compound:

  • Biological Role: Dipotassium hydrogen phosphate serves as an essential nutrient in agriculture, particularly in fertilizers. It provides vital potassium and phosphorus, promoting healthy plant growth and enhancing crop yields.
  • Buffering Agent: This compound acts as a buffering agent in biochemical and biological experiments. It helps maintain a stable pH in various solutions, making it crucial in laboratory settings and when developing pharmaceuticals.
  • Food Industry: In the food industry, dipotassium hydrogen phosphate is used as an emulsifier, stabilizer, and thickening agent. It enhances the texture and quality of processed foods, ensuring they maintain their desired consistency.
  • Research Applications: Chemists often utilize dipotassium hydrogen phosphate in various research projects. It is frequently used in cell culture and microbiological studies, owing to its role in providing necessary ions and maintaining osmotic balance.
  • Hydration and Electrolyte Balance: Due to its potassium content, dipotassium hydrogen phosphate is important in formulations designed to balance electrolytes. It can be found in some rehydration solutions, helping regulate body fluids effectively.

In summary, dipotassium hydrogen phosphate not only plays a vital role in agriculture and food science but also proves invaluable in research and healthcare. Its multifunctionality makes it a compound of interest for scientists and students alike. As the famous chemist Robert H. Grubbs once said, "Science is merely the word we use to describe a method of organizing our ignorance." This compound certainly exemplifies the amazing possibilities within the realm of chemistry!

Synonyms
7758-11-4
Dipotassium hydrogen phosphate
DIPOTASSIUM PHOSPHATE
Dipotassium hydrogenphosphate
Potassium phosphate dibasic
Dibasic potassium phosphate
Potassium phosphate, dibasic
Phosphoric acid, dipotassium salt
Potassium dibasic phosphate
Dipotassium monophosphate
Potassium monophosphate
Dipotassium orthophosphate
Dipotassium monohydrogen phosphate
Hydrogen dipotassium phosphate
Potassium phosphate (dibasic)
di-potassium hydrogen phosphate
Dipotassium hydrogenorthophosphate
Dipotassium acid phosphate
Dipotassium hydrogen orthophosphate
Kali phosphoricum
Secondary potassium phosphate
Phosphoric acid, potassium salt (1:2)
CI71S98N1Z
INS NO.340(II)
INS-340(II)
Dipotassium hydrogen monophosphate
E-340(II)
Potassium phosphate,dibasic
DTXSID8035506
KALI PHOSPHORICUM [HPUS]
CHEBI:131527
potassium dibasic phosphate trihydrate
POTASSIUM PHOSPHATE (K2HPO4)
POTASSIUM PHOSPHATE, DIBASIC [II]
POTASSIUM PHOSPHATE, DIBASIC [MI]
POTASSIUM PHOSPHATE, DIBASIC [FCC]
POTASSIUM PHOSPHATE, DIBASIC [JAN]
DIPOTASSIUM PHOSPHATE [EP IMPURITY]
POTASSIUM PHOSPHATE, DIBASIC [HSDB]
POTASSIUM PHOSPHATE,DIBASIC [VANDF]
DIBASIC POTASSIUM PHOSPHATE [USP-RS]
DIPOTASSIUM PHOSPHATE [EP MONOGRAPH]
POTASSIUM PHOSPHATE DIBASIC [WHO-DD]
POTASSIUM PHOSPHATE DIBASIC ANHYDRATE
DIPOTASSIUM HYDROGEN PHOSPHATE (K2HPO4)
DIBASIC POTASSIUM PHOSPHATE [USP IMPURITY]
DIBASIC POTASSIUM PHOSPHATE [USP MONOGRAPH]
POTASSIUM PHOSPHATE, DIBASIC [ORANGE BOOK]
POTASSIUM PHOSPHATE, DIBASIC [USP IMPURITY]
POTASSIUM PHOSPHATES COMPONENT DIBASIC POTASSIUM PHOSPHATE
POTASSIUM PHOSPHATE, DIBASIC (II)
DIPOTASSIUM PHOSPHATE (EP IMPURITY)
DIPOTASSIUM PHOSPHATE (EP MONOGRAPH)
DIBASIC POTASSIUM PHOSPHATE (USP-RS)
DIBASIC POTASSIUM PHOSPHATE (USP IMPURITY)
DIBASIC POTASSIUM PHOSPHATE (USP MONOGRAPH)
POTASSIUM PHOSPHATE, DIBASIC (USP IMPURITY)
DipotassiumOphosphate
Kali Phos 6X
TONICPET 6
DIKALIUM PHOSPHATE
KALI PHOSPHORICUM 6X
Kali Phosphoricum Kit Refill
Potassium phosphate, (dibasic)
DTXCID6015506
DIPOTASSIUM PHOSPHATE [INCI]
POTASSIUM ORTHOPHOSPHATE, MONO-H
DIBASIC POTASSIUM PHOSPHATE COMPONENT OF POTASSIUM PHOSPHATES
231-834-5
Dipotassium monophosphateSecondary potassium phosphateDipotassium orthophosphateDibasic potassium phosphate
Potassium Hydrogen Phosphate
Potassium monohydrogen phosphate
K2HPO4
MFCD00011383
dipotassium;hydrogen phosphate
sec.-Potassium phosphate
Potassium phosphate dibasic, anhydrous
Potassium phosphate dibasic, ACS reagent
Isolyte
Dipotassium-O-phosphate
CCRIS 6544
HSDB 935
EINECS 231-834-5
Mediject P (TN)
di potassium phosphate
di-Potassium hydrogen phosphate, anhydrous
PotassiumHydrogenPhosphate
potassium hydrogenphosphate
dipotasium hydrogen phosphate
UNII-CI71S98N1Z
potassium monohydrogenphosphate
potassium hydrogen monophosphate
CHEMBL1200459
CHEBI:32031
Potassium phosphate dibasic anhdyrous
Potassium phosphate dibasic anhydrous
dipotassium monohydrogen orthophosphate
AKOS015915872
AKOS016371887
DB09414
FP29767
FP45683
Potassium hydrogen phosphate, anhydrous
Potassium Phosphate, Dibasic, Anhydrous
Potassium phosphate dibasic, USP reagent
Potassium phosphate, dibasic (JAN/USP)
Potassium phosphate, dibasic [USP:JAN]
7558-11-4
Potassium phosphate dibasic, LR, >=98%
SY010082
DB-230259
NS00081371
Potassium phosphate dibasic, Biochemical grade
Potassium phosphate dibasic, puriss., >=99%
D02403
EC 231-834-5
Potassium phosphate dibasic, ACS reagent, >=98%
Potassium phosphate dibasic, USP, 98.0-100.5%
Q403721
Potassium phosphate dibasic, AR, anhydrous, >=99%
Potassium phosphate dibasic, reagent grade, >=98.0%
Potassium phosphate dibasic, 99.95% trace metals basis
Potassium phosphate dibasic, SAJ first grade, >=98.0%
Potassium phosphate dibasic, Trace metals grade 99.95%
Potassium phosphate dibasic, JIS special grade, >=99.0%
Potassium phosphate dibasic, Vetec(TM) reagent grade, 98%
Potassium phosphate dibasic , anhydrous - for HPLC, >99.0%
Potassium phosphate dibasic, meets USP testing specifications
Dibasic potassium phosphate, United States Pharmacopeia (USP) Reference Standard
Potassium phosphate dibasic, anhydrous, free-flowing, Redi-Dri(TM), ACS reagent, >=98%
Potassium phosphate dibasic, puriss. p.a., ACS reagent, anhydrous, >=99.0% (T)
Potassium phosphate dibasic, anhydrous, for luminescence, for molecular biology, BioUltra, >=99.0% (T)
Potassium phosphate dibasic, USP, Fine granular, Low heavy metals (As: <= 1 ppm, Cd: <= 1 ppm, Pb: <= 1 ppm & Hg: <= 0.1 ppm)
Potassium phosphate dibasic, USP, Powder, Low heavy metals (As: <= 1 ppm, Cd: <= 1 ppm, Pb: <= 1 ppm & Hg: <= 0.1 ppm)