Description
Potassium hydrogen tartrate is an extra-pure laboratory chemical with a minimum assay of 99,5 %, It carries CAS number 868-14-4 and EG number 212-769-1, with empirical formula C₄H₅KO₆ and a molar mass of 188,18 g/mol. Density is 1,98 g/cm³ and the boiling point is 328 °C, giving clear physical reference data for weighing, dissolution and process planning. Supplied as an extra-pure grade from manufacturer Carl ROTH, the salt is well suited to analytical chemistry, including complexometric and complexing-agent applications where a defined potassium hydrogen tartrate source is needed. The crystalline material supports preparation of standard solutions, buffer-related work and general wet-chemical procedures in research and quality-control laboratories. balances bench convenience with sufficient stock for repeated analytical use, while the documented purity and identity data help maintain traceable laboratory practice.
This article is part of Reference substances & reagents (other), in Analytical standards & reference materials.
Key features
- Assay (acidim., dry substance): ≥99,5 %
- Specific rotation [α]20D (dry substance): +8,0° to +9,2°
- Oxalic acid (C2H2O4): ≤0,05 %
- Chloride (Cl): ≤0,05 %
- Sulphate (SO4): ≤0,05 %
- Heavy metals (as Pb): ≤0,001 %
- Loss on drying (105 °C): ≤0,5 %
- CAS number: 868-14-4
- Pack sizes: 100 g, 500 g, 1 kg
- EG nr.: 212-769-1
- Purity: min. 99,5 %, extra pure
- Empirical formula: C₄H₅KO₆
- Molar mass: 188,18 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Potassium hydrogen tartrate, min. 99,5 %, extra pure, 100 g, plastic
What is this article?
Potassium hydrogen tartrate, min. 99,5 %, extra pure, 100 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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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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