Description
Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP
General description
Potassium hydrogen phthalate, also known as KHP, is a volumetric standard manufactured under stringent conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.
Application
It finds its use as a certified reference material (CRM) for the standardization of volumetric solutions in alkalimetric titrations, according to USP and Ph. Eur. It is also used to prepare a standard solution in determination of COD.
Features and Benefits
- Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- Certified reference material according to ISO 17034
- High-purity material traceable to NIST SRMs
- Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
- In accordance with the chapter reagents of USP and Ph. Eur
- High-quality offering accurate titer determinations
- Accompanied by a certificate of analysis (CoA)
PROPERTIES
Agency
ISO 17025
reag. Ph. Eur.
reag. USP
form
solid
potency
>3200 mg/kg LD50, oral (Rat)
technique(s)
titration: suitable
pH
4.0 (20 °C, 50 g/L in H2O)
mp
295-300 °C
solubility
80 g/L
density
1.636 g/cm3
bulk density
900 kg/m3
storage temp.
15-25°C
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