Skip to Content
Merck
CN

P1088

Potassium hydrogen phthalate

BioXtra, ≥99.95%

Synonym(s):

Potassium phthalate monobasic, KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
HOOCC6H4COOK
CAS Number:
877-24-7
Molecular Weight:
204.22
UNSPSC Code:
12161700
NACRES:
NA.25
PubChem Substance ID:
24898152
EC Number:
212-889-4
Beilstein/REAXYS Number:
3637128
MDL number:
MFCD00013070

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Potassium hydrogen phthalate, BioXtra, ≥99.95%

InChI key

IWZKICVEHNUQTL-UHFFFAOYSA-M

InChI

1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1

SMILES string

[K+].OC(=O)c1ccccc1C([O-])=O

product line

BioXtra

assay

≥99.95%

form

powder or crystals

impurities

<0.005% Insoluble matter
<0.005% Phosphorus (P)

pH

4

mp

295-300 °C (dec.) (lit.)

anion traces

chloride (Cl-): <0.003%
sulfur compounds (as SO42-): ≤0.002%

cation traces

Al: <0.0005%
Ca: <0.005%
Cu: <0.0005%
Fe: <0.0005%
Mg: <0.0005%
NH4+: <0.05%
Na: <0.005%
Pb: <0.001%
Zn: <0.0005%

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Potassium hydrogen phthalate has been used as a substrate to assess the permeation from the extracellular (EC) to the periplasmic (PP) side through DcaP. It has also been used as one of the polyurethane materials for the characterization of polyester triol (OH).

Features and Benefits

  • Long-term stability
  • Exhibits dielectric properties

General description

Potassium hydrogen phthalate (KHP) is a semi-organic salt that is a member of the alkali acid phthalate series. KHP crystals are useful in devices because of their electro-optical properties. It usually acts as a model compound due to its well-developed surface pattern on the (010) face that can be easily observed by optical microscopy.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

387.1 °F - Pensky-Martens closed cup

flash_point_c

197.3 °C - Pensky-Martens closed cup

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCZ6394
MKCV7840
MKCW6054
MKCS3748
MKCS3749

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Meghan O'Connor et al.
Water research, 156, 23-33 (2019-03-25)
The organic matter present in wastewater effluents (EfOM), is likely to have different properties than the organic matter present in the receiving water. The properties of EfOM will affect the fate of contaminants of emerging concern because EfOM is a
Marta Guembe-García et al.
Polymers, 12(6) (2020-06-04)
We anchored a colourimetric probe, comprising a complex containing copper (Cu(II)) and a dye, to a polymer matrix obtaining film-shaped chemosensors with induced selectivity toward glycine. This sensory material is exploited in the selectivity detection of glycine in complex mixtures
Martha M Téllez-Rojo et al.
The Science of the total environment, 461-462, 386-390 (2013-06-12)
Previous studies suggest that prenatal phthalate exposure affects neurodevelopment and behavior during the first years of life. To evaluate the effect of maternal urinary concentrations of phthalate metabolites during pregnancy on mental and psychomotor development in children 24-36 months of
Randi J Bertelsen et al.
Environmental health perspectives, 121(2), 251-256 (2012-11-21)
High-molecular-weight phthalates in indoor dust have been associated with asthma in children, but few studies have evaluated phthalate biomarkers in association with respiratory outcomes. We explored the association between urinary concentrations of phthalate metabolites and current asthma. In a cross-sectional
Maria Cristina Fossi et al.
Marine pollution bulletin, 64(11), 2374-2379 (2012-09-12)
Baleen whales are potentially exposed to micro-litter ingestion as a result of their filter-feeding activity. However, the impacts of microplastics on baleen whales are largely unknown. In this case study of the Mediterranean fin whale (Balaenoptera physalus), we explore the
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service