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Potassium Hydrogen Phthalate
(CAS RN:877-24-7 Product Number:P0309)


Potassium Hydrogen Phthalate
Synonym Monopotassium Phthalate
Synonym Phthalic Acid Monopotassium Salt

General Information

Product Number P0309

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Purity/Analysis Method >99.8%(T)
Storage Temperature
M.F. / M.W. C8H5KO4=204.22
CAS RN 877-24-7
Related CAS RN
MDL Number MFCD00013070
Packaging and Container
  • Product Details
  • Safety & Regulations


Appearance White to Almost white powder to crystal
Purity(HPLC) min. 99.5 area%
Purity(Neutralization titration) 99.8 to 100.2 %
Solubility in Water almost transparency


Beilstein 9,791
Reaxys-RN 3637128
PubChem SID 87574540
Merck Index(14) 7612
RTECS# CZ4326000


Signal Word Warning
Hazard Statements
  • H315
  • :Causes skin irritation.
  • H319
  • :Causes serious eye irritation.
Precautionary Statements
  • P264
  • :Wash hands and face thoroughly after handling.
  • P280
  • :Wear protective gloves, eye protection.
  • P302+P352+P332+P313+P362+P364
  • :If on skin: Wash with plenty of soap and water. If skin irritation occurs: Get medical advice or attention. Take off contaminated clothing and wash it before reuse.
  • P305+P351+P338+P337+P313
  • :If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice or attention.


PubMed Literature

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