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Merck

60357

Potassium phthalate monobasic

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

Sinónimos:

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

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Fórmula lineal:
HOOCC6H4COOK
Número CAS:
877-24-7
Peso molecular:
204.22
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329758900
EC Number:
212-889-4
Beilstein/REAXYS Number:
3637128
MDL number:
MFCD00013070

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Nombre del producto

Potassium phthalate monobasic, reference material for titrimetry, certified by BAM, >99.5%

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

grade

reference material

assay

>99.5%

quality

certified by BAM

technique(s)

titration: suitable

pH

4

mp

295-300 °C (dec.) (lit.)

application(s)

environmental

format

neat

Quality Level

100

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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.

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)

General description

Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
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.

Clase de almacenamiento

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)

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Certificados de análisis (COA)

Lot/Batch Number
BCCJ8134
BCCC4843
BCBT3524

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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)
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)
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
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
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