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.
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
Warning
Hazard Statements (H-Phrases)
H319
Causes serious eye irritation
H335
May cause respiratory irritation
Precautionary Statements (P-Phrases)
P261
P261 – No description available
P280
Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

