Potassium hydrogenphosphate trihydrate

Basic Information

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CAS Number

16788-57-1

Molecular Formula

H7K2O7P

Molecular Weight

228.22 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Agricultural Chemicals Pesticides Insecticides

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

340°C(anhydrous substance),decomposes

Density

1.5230

Solubility

H2O: 4 M at 20 °C, clear, colorless

SMILES

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O.O.O.OP(=O)([O-])[O-].[K+].[K+]

InChI

InChI=1S/2K.H3O4P.3H2O/c;;1-5(2,3)4;;;/h;;(H3,1,2,3,4);3*1H2/q2*+1;;;;/p-2

InChIKey

XQGPKZUNMMFTAL-UHFFFAOYSA-L

LogP

-0.24510

Complexity

46.5

Safety Information

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Stability

Stable. Incompatible with strong oxidizing agents.

Sensitiveness

Hygroscopic

Synonyms & References

English

FT-0625293
trihydratedibasicpotassium phosphate
Dipotassium monophosphate trihydrate
Dipotassium phosphate trihydrate
Potassium phosphate dibasic trihydrate
MFCD00149926
Potassium phosphate, dibasic, trihydrate
Potassium hydrogenphosphate trihydrate
AKOS015950675
16788-57-1
Potassium Hydrogen Phosphate Trihydrate
Dipotassium hydrogen phosphate, trihydrate
BCP21720
Di-potassium hydrogen orthophosphate 3-hydrate
RJK174X3TZ
di-Potassium hydrogen phosphate trihydrate
dipotassium;hydrogen phosphate;trihydrate
DTXSID60168418
Phosphoric acid, dipotassium salt, trihydrate
XQGPKZUNMMFTAL-UHFFFAOYSA-L
UNII-RJK174X3TZ
Potassium hydrogen phosphate trihydrate, Reagent Grade
Dipotassium hydrogen phosphate (k2hpo4) trihydrate
Dipotassium hydrogen phosphate trihydrate
AKOS015914013
Dipotassium orthophosphate, trihydrate
Q27288149
potassium hydrogen phosphate, trihydrate
Phosphoric acid, dipotassium salt, trihydrate (8CI,9CI)
DIPOTASSIUM PHOSPHATE TRIHYDRATE
DI-POTASSIUM HYDROGEN ORTHOPHOSPHATE 3-HYDRATE

MDL Number

MFCD00149926

Customs Code

2835240000

FAQ

What is Potassium hydrogenphosphate trihydrate (CAS: 16788-57-1)?

Potassium hydrogenphosphate trihydrate is a chemical compound with the formula K₂HPO₄·3H₂O. It is a white, crystalline solid that is soluble in water and commonly used as a buffering agent. This compound is stable under normal conditions and has a slightly basic pH when dissolved.

What are the main uses of Potassium hydrogenphosphate trihydrate (CAS: 16788-57-1)?

Potassium hydrogenphosphate trihydrate is widely used in pharmaceuticals as a buffering agent, in industrial processes for water treatment, in food as a leavening agent, and in laboratory research for buffer solutions. It also serves as a component in some chemical reagents and fertilizers.

Is Potassium hydrogenphosphate trihydrate (CAS: 16788-57-1) safe?

Potassium hydrogenphosphate trihydrate is generally considered safe when handled properly. It is non-toxic in normal use, but direct contact with skin or inhalation of dust should be avoided. Safety data sheets recommend using appropriate protective equipment and following standard chemical handling procedures.

How should Potassium hydrogenphosphate trihydrate (CAS: 16788-57-1) be stored?

Potassium hydrogenphosphate trihydrate should be stored in a cool, dry place away from direct sunlight. It is best kept in a sealed, airtight container to prevent moisture absorption. Storage at temperatures below 25°C and in low humidity environments ensures maximum stability and prolongs shelf life.