Description
Potassium chromate solution is a pharmacopoeia reagent designated Reag. Ph. Eur., Chapter 4.1.1, 1069201. It is based on potassium chromate, CAS number 7789-00-6, empirical formula K₂CrO₄ and molar mass 194,21 g/mol. The ready-to-use aqueous solution is supplied in a 1 l pack, with a density of approximately 1 g/cm³ and a boiling point of 100 °C. These physical values help laboratories plan dispensing, glassware choice and any heating steps. As a Chapter 4.1.1 reagent, the product is intended for analytical procedures that specify European Pharmacopoeia reagents, including pharmaceutical quality-control work. Using a prepared solution removes the need to weigh solid potassium chromate and to compound the monograph reagent in house. The preparation from manufacturer Carl ROTH sits in the range of chemicals in pharmacopoeia quality and of Ph. Eur. reagents and volumetric standard solutions. The 1 l volume suits repeated bench use. EG number 232-140-5 identifies the chromate constituent, and UN number 3082 applies to transport of the solution.
Key features
- CAS number: 7789-00-6
- Pack size: 1 l
- EG nr.: 232-140-5
- Empirical formula: K₂CrO₄
- Molar mass: 194,21 g/mol
- UNSPSC: 41116105
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Potassium chromate solution, Reag. Ph. Eur., Chapter 4.1.1, 1 l
What is this article?
Potassium chromate solution, Reag. Ph. Eur., Chapter 4.1.1, 1 l is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Reagents for analysis (Ph. Eur., ASTM, DIN), inside Analytical standards & reference materials, in Lab chemicals.
A reagent for analysis is a chemical whose impurities are limited so they do not become a signal in a titration, a digestion or a photometric method. Pharmacopoeia, ASTM and DIN names point at different limit lists. The grade, not only the identity, is the purchase.
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.
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Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Reference substances & reagents (other), Volumetric standard solutions (titration), Spectroscopy & physical property standards and Indicators & indicator solutions.
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