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Home/Compounds/Food Additive/Monobasic potassium phosphate
H2KO4P
136.086 g/mol
Food Additive

Potassium dihydrogen phosphate

CAS7778-77-0EC231-913-4
Category
Food Additive
Compound Class
Inorganic Salt
Primary Use
buffer and sequestrant

Potassium dihydrogen phosphate is a chemical compound used as a buffering agent and sequestrant, primarily in food processing and industrial applications. It is also employed in pH buffer solutions and as a pharmaceutical aid.

buffer and sequestrant in food additivespH buffer preparationpharmaceutical buffering agent

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

StrongSame Parent

Sodium dihydrogen phosphate

CAS89140-32-9

pH buffer and food additive

StrongSame Parent

Monohydratemonobasicsodium phosphate

CAS10049-21-5

Food additive acidulant and sequestrant

StrongSame Parent

Lithium dihydrogen phosphate

CAS13453-80-0

Lithium battery electrolyte precursor

StrongSame Parent

Dihydratemonobasicsodium phosphate

CAS13472-35-0

food additive and sequestrant

SimilarStructure SimilarSimilarity 0.78

Dibasic ammonium phosphate

CAS7783-28-0

fertilizer

SimilarStructure SimilarSimilarity 0.78

Calcium hydrogenphosphate dihydrate

CAS7789-77-7

calcium supplement and anticaking agent

ReferenceSame Category

Heptahydratedibasicsodium phosphate

CAS7782-85-6

food sequestrant emulsifier and buffer

ReferenceSame Category

Aluminium phosphate

CAS7784-30-7

leavening agent in baking powders

Customs Tariff Classification

The international HS code for Potassium dihydrogen phosphate (CAS 7778-77-0) is 2835.24.

HS code (international, 6-digit)

2835.24

EU CN code (8-digit)

2835 24 00

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

potassium dihydrogen phosphate

InChIKey

GNSKLFRGEWLPPA-UHFFFAOYSA-M

SMILES

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

Synonyms (56)
  • KDP
  • MKP
  • MONOBASIC POTASSIUM PHOSPHATE (USP-RS)
  • MONOBASIC POTASSIUM PHOSPHATE USP
  • POTASSIUM DIHYDROGEN PHOSPHATE (EP MONOGRAPH)
  • E-340(I)
  • INS NO.340(I)
  • K Phos Original
  • KALIUM PHOSPHORICUM 6X
  • Kali Phos 12X
  • Kali Phos 200X
  • Kali Phos 30X
  • Kali Phos 3X
  • Kali Phosphoricum 8006
  • MONOPOTASSIUM PHOSPHATE
  • Monobasic potassium phosphate
  • Monopotassium monophosphate
  • Monopotassium orthophosphate
  • POTASSIUM PHOSPHATE
  • Phosphoric Acid Potassium
  • Pot dihydrogen phos
  • Potassium (as phosphate)
  • Potassium acid phosphate
  • Potassium bisphosphate
  • Potassium phosphate monobasic
  • potassium biphosphate

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