Description
Potassium hydrogen phthalate is a high-purity organic salt specified at min. 99,5 % for HPLC use, with CAS number 877-24-7 and empirical formula C₈H₅KO₄. It exhibits a molar mass of 204,23 g/mol, a density of 1,636 g/cm³, a flash point of 197,3 °C, and a boiling point above 300 °C, providing a well-characterised profile for analytical laboratory work. Commonly applied in chromatography-related buffer systems and as a reference material in titrimetric and HPLC contexts, the compound supports reproducible preparation of standard solutions. is practical for routine analytical consumption. EG number 212-889-4 aids regulatory and inventory identification. Laboratories performing liquid chromatography benefit from the defined purity and physical data when establishing consistent mobile phases or calibration solutions. This HPLC-grade potassium hydrogen phthalate from manufacturer Carl ROTH is intended for professional use where reliable composition and documented specifications matter.
This article is part of Chromatography standards (GC, HPLC, pesticides), in Analytical standards & reference materials.
Key features
- Assay: ≥99.5 %
- Solubility (0,1 g/ml H2O): complies
- pH-value: 3.5-5.0
- 330 nm: ≤0.05
- 340 nm: ≤0.03
- 350 nm: ≤0.02
- 500 nm: ≤0.02
- CAS number: 877-24-7
- Pack sizes: 50 g, 250 g
- EG nr.: 212-889-4
- Purity: min. 99,5 %
- Molar mass: 204,23 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Potassium hydrogen phthalate, min. 99,5 %, HPLC, 50 g, plastic
What is this article?
Potassium hydrogen phthalate, min. 99,5 %, HPLC, 50 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Reference substances & reagents (other), inside Analytical standards & reference materials, in Lab chemicals.
A reference substance has a stated identity and a stated content, used to check a method or to standardise a titration. It is a more tightly specified article than a reagent grade bottle of the same name. The lot's certificate is part of the product.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
Which category should I open next?
The category is Analytical standards & reference materials. The sub-category is Reference substances & reagents (other). The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
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