Citric Acid Monohydrate, Crystalline

This 10 kg supply of citric acid monohydrate (2-hydroxy-1,2,3-propanetricarboxylic acid) is a crystalline reagent suited for a range of laboratory applications, including biochemical research, pH control, and analytical procedures. The stable, hydrated form delivers consistent buffering capacity and reliable chelating properties. The product appears as colorless or white crystals or crystalline powder, with a purity range of 99.0 to 102.0 percent as confirmed by FTIR identification. Water content (Karl Fischer volumetric) falls between 7.5 and 8.8 percent, consistent with the monohydrate specification. Trace impurity levels are tightly controlled: lead is held to 3 ppm or below, iron to 3 ppm or below, sulfate to 20 ppm or below, and chloride to 10 ppm or below. Insoluble matter does not exceed 0.005 percent, and residue on ignition is limited to 0.02 percent. The material passes the oxalate test and shows no detectable DNase or RNase activity, making it appropriate for sensitive biochemical work where nuclease contamination must be avoided.