60357
Potassium phthalate monobasic
reference material for titrimetry, certified by BAM, >99.5%
Synonym(s):
KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate
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About This Item
Linear Formula:
HOOCC6H4COOK
CAS Number:
Molecular Weight:
204.22
Beilstein:
3637128
EC Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24
grade
reference material
Quality Level
Assay
>99.5%
quality
certified by BAM
technique(s)
titration: suitable
pH
4
mp
295-300 °C (dec.) (lit.)
application(s)
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
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General description
Potassium hydrogen phthalate, also known as KHP, is a volumetric standard produced under stringent conditions and measured with the highest possible precision. The content of the standard is measured using volumetric acid-base titrations. Its certified value and uncertainty measurement are in accordance with ISO Guide 35.
Application
It finds its use as a reference material for the standardization of volumetric solutions in alkalimetric titrations.
Features and Benefits
- Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- High-purity material traceable to NIST SRM
- High-quality offering accurate titer determinations
- Accompanied by a certificate of analysis (CoA)
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.
WGK
WGK 1
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration?A comparison
Recknagel S, et al.
Analytica Chimica Acta, 599, 256-263 (2007)
Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration--A comparison
Recknagel S, et al.
Analytica Chimica Acta, 599(2), 256-263 (2007)
Acid- Base Dissociation Constants of o-Phthalic Acid in Acetonitrile/Water Mixtures over the (15 to 50)? C Temperature Range and Related Thermodynamic Quantities
Gagliardi GL, et al.
Journal of Chemical and Engineering Data, 55(1), 85-91 (2010)
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
Hanne Frederiksen et al.
Environmental science & technology, 47(2), 958-967 (2012-12-14)
Urinary phthalate excretion is used as marker of phthalate exposure in epidemiological studies. Here we examine the reliability of urinary phthalate levels in exposure classification by comparing the inter- and intrasubject variation of urinary phthalate metabolite levels. Thirty-three young healthy
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