Description
Potassium dihydrogen phosphate is an HPLC-grade reagent with a minimum purity of 99,5 %, offered for demanding liquid chromatography and buffer applications. Identified by CAS number 7778-77-0 and empirical formula KH₂PO₄, it has a molar mass of 136,09 g/mol and a density of 2,34 g/cm³. The salt is widely employed to prepare phosphate buffers and mobile-phase components where defined ionic composition and high chemical purity are required. EG number 231-913-4 supports substance identification in laboratory documentation. In LC and HPLC workflows, potassium dihydrogen phosphate contributes to stable pH control and reproducible retention behaviour. This material from manufacturer Carl ROTH is intended for professional chromatographic use, combining tight purity specification with clear physicochemical data for reliable buffer and eluent preparation.
Key features
- Assay (titr.): ≥99.5 %
- Solubility (0,1 g/ml H2O): complies
- 250 nm: ≤0.05
- 280 nm: ≤0.05
- CAS number: 7778-77-0
- Pack sizes: 50 g, 250 g
- EG nr.: 231-913-4
- Purity: min. 99,5 %
- Molar mass: 136,09 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Potassium dihydrogen phosphate, min. 99,5 %, HPLC, 50 g, plastic
What is this article?
Potassium dihydrogen phosphate, min. 99,5 %, HPLC, 50 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in HPLC accessories, inside HPLC columns & accessories, in Chromatography equipment.
HPLC accessories are the unions, the ferrules, the lamp and the mixer parts around the pump and the detector. A ferrule that has been swaged on one fitting does not reseal on another. The part has to be the one for that thread and that tubing.
An HPLC column is a tube packed, or coated, with a stationary phase. The sample is carried through it by a liquid, and the compounds leave at different times. The phase, the particle size, the length and the internal diameter decide the separation. A guard column is a short sacrificial piece in front of the analytical column. Fittings and tubing have a bore that either preserves the peak or smears it. Compound names follow IUPAC. Data are on PubChem. Method grades often cite the European Pharmacopoeia or USP.
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The category is HPLC columns & accessories. The sub-category is HPLC accessories. The catalogue is Chromatography equipment.
Shelves beside this one are HPLC columns, HPLC fittings, tubing & inline filters and HPLC guard columns.
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.