Description
Citric acid, min. 99.5 %, Ph.Eur., anhydrous is a pharmacopoeia-grade organic acid intended for laboratory and pharmaceutical applications that require defined purity. It is identified by CAS number 77-92-9 and EG number 201-069-1, with the empirical formula C₆H₈O₇ and a molar mass of 192,13 g/mol. The anhydrous solid exhibits a density of 1,67 g/cm³. This quality from manufacturer Carl ROTH meets Ph.Eur. specifications and is suited to buffer preparation, pH adjustment, analytical reagents, and formulation work where an anhydrous citric acid of controlled purity is specified. The free-flowing solid dissolves readily in aqueous systems, supporting reproducible preparation of standard solutions and process media.
This article is part of Acids, in Acids & bases.
Key features
- Appearance: white or almost white crystalline powder or granular crystals
- Assay (dry substance): 99.5-100.5 %
- Appearance of solution: complies
- Water: ≤0.5 %
- Sulphated ash: ≤0.05 %
- Chloride (Cl): ≤0.0005 %
- Sulphate (SO4): ≤0.01 %
- Oxalate (as C2H2O4): ≤0.01 %
- Iron (Fe): ≤0.0003 %
- Arsenic (As): ≤0.0001 %
- CAS number: 77-92-9
- Pack sizes: 1 kg, 5 kg, 500 g, 2.5 kg, 25 kg, 10 kg
- EG nr.: 201-069-1
- Purity: min. 99.5 %, Ph.Eur., anhydrous
- Empirical formula: C₆H₈O₇
- Molar mass: 192,13 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Citric acid, min. 99.5 %, Ph.Eur., anhydrous, 1 kg, plastic
What is this article?
Citric acid, min. 99.5 %, Ph.Eur., anhydrous, 1 kg, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Acids, inside Acids & bases, in Lab chemicals.
An acid on this shelf is the substance itself, concentrated or as a stated solution: hydrochloric, sulfuric, nitric, acetic and the rest. Concentration, purity and the trace metals decide the use. A concentrated acid and a volumetric solution of the same name are different products, and both burn.
An acid donates a proton. A base accepts one. In the bottle, the practical differences are the concentration, the purity and the anion or cation that comes along. Concentrated mineral acids are a different article from a dilute volumetric solution. The water in the acid, and the trace metals, decide whether it can be used for analysis. Check the substance on PubChem and the classification on ECHA CLP. Transport is the UNECE dangerous-goods framework. The legal texts are the CLP Regulation and REACH.
Which category should I open next?
The category is Acids & bases. The sub-category is Acids. The catalogue is Lab chemicals.
Shelves beside this one are Bases & alkalis.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.

