Description
di-Potassium hydrogen phosphate is an anhydrous analytical-grade salt with min. 99 % purity (p.a.) for laboratory and buffer applications. Identified by CAS number 7758-11-4 and empirical formula K₂HPO₄, it has a molar mass of 174,18 g/mol and a density of 2,44 g/cm³. The anhydrous form is valued for preparing phosphate buffers, adjusting ionic strength and supporting biochemical, pharmaceutical and general analytical workflows where controlled pH and potassium/phosphate content matter. di-Potassium hydrogen phosphate from manufacturer Carl ROTH is intended for salts-for-analysis use and delivers consistent composition for reproducible buffer systems and inorganic preparations. Clear specification data and a practical pack size help laboratories maintain reliable stock of this widely used dibasic phosphate salt.
This article is part of Inorganic salts, in Inorganic chemicals.
Key features
- Assay (acidim.): ≥99,0 %
- pH value (5 % in H2O): 8,5-9,6
- In H2O insoluble matter: ≤0,005 %
- Loss of drying (140 °C, 30 min): ≤1,0 %
- Nitrogen compounds (as N): ≤0,002 %
- Chloride (Cl): ≤0,02 %
- Sulphate (SO4): ≤0,1 %
- Arsenic (As): ≤0,0001 %
- Lead (Pb): ≤0,001 %
- Cadmium (Cd): ≤0,001 %
- CAS number: 7758-11-4
- Pack sizes: 500 g, 1 kg, 2.5 kg, 25 kg
- EG nr.: 231-834-5
- Purity: min. 99 %, p.a., anhydrous
- Molar mass: 174,18 g/mol
- Density: 2,44 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about di-Potassium hydrogen phosphate, min. 99 %, p.a., anhydrous, 500 g, plastic
What is this article?
di-Potassium hydrogen phosphate, min. 99 %, p.a., anhydrous, 500 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Inorganic salts, inside Inorganic chemicals, in Lab chemicals.
An inorganic salt is an ionic solid, a chloride, a sulfate, a nitrate, a phosphate. The degree of hydration changes the mass that contains one mole of the ion. Analytical grade limits the foreign ions. A hydrate and the anhydrous salt are not interchangeable by weight.
An inorganic chemical is a salt, an acid or base in solid form, a metal, an oxide, or an element. The waters of hydration are part of the formula: a hydrate and an anhydrous salt are different masses for the same ion. Trace metals matter when the salt will be used in analysis. Nanomaterials add particle size to the specification. Look the substance up on PubChem. Hazard classes are on ECHA, under the CLP Regulation and REACH. Transport of the dangerous ones is explained by the UNECE.
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The category is Inorganic chemicals. The sub-category is Inorganic salts. The catalogue is Lab chemicals.
Shelves beside this one are Metals, elements & oxides and Nanomaterials & quantum dots.
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