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Potassium phthalate monobasic

certified reference material for titrimetry, certified by BAM, ≥99.5%

Synonym: KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate

  • CAS Number 877-24-7

  • Linear Formula HOOCC6H4COOK

  • Molecular Weight 204.22

  •  Beilstein/REAXYS Number 3637128

  •  EC Number 212-889-4

  •  MDL number MFCD00013070

  •  PubChem Substance ID 329758900

  •  NACRES NA.24

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Properties

Related Categories Additional Standards, Analytical Standards, Analytical/Chromatography, Application CRMs, Certified Reference Materials (CRMs),
Quality Level   100
grade   certified reference material
assay   ≥99.5%
form   neat
quality   certified by BAM
application(s)   titration: suitable
pH   4
mp   295-300 °C (dec.) (lit.)
Featured Industry   Environmental
format   neat
SMILES string   [K+].OC(=O)c1ccccc1C([O-])=O
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
InChI key   IWZKICVEHNUQTL-UHFFFAOYSA-M

Description

General description

Potassium phthalate monobasic can find applications in acid and base titrimetric analysis as an acidimetric standard and pH standard.

Application

Potassium phthalate monobasic has been used as a reference material in order to determine the purity of potassium phthalate monobasic samples, via comparison of techniques, such as precision coulometric titration and precision volumetric titration.

Analysis Note

Exact concentration, expiry date and detailed information on certification can be found on the certificate and certification report, included in each package. Content and expiry date on label.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 2
RTECS 
CZ4326000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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