How is the density of citric acid determined?
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I now want to determine the density of citric acid – not its bulk density, but its actual density. Since citric acid dissolves in water, I can’t use the methods used to measure the density of solids. Is there any good method for this?
Measure using a solvent that does not dissolve citric acid
Correct answer on the 2nd floor: D. Citric acid is soluble in water, ethanol, and propanol; it is insoluble in ether and benzene, and slightly soluble in chloroform
We have previously carried out measurements in amino acid production, such as lysine; there is a relationship between density and concentration, as well as between refractive index and concentration. Therefore, when using our refractometer for measurements, the data obtained is usually directly the concentration. You can refer to this information. Additionally, there are a few concepts I would like to mention – I was wondering whether, according to industrial standards, if density needs to be determined, it is possible to first measure the concentration and then convert it into density?
I took a look at the performance report; several companies of CP Group in the south use our refractometers to measure the concentration of lysine citrate. There are ones available in the laboratory, as well as online. I have a curve graph showing the relationship between citric acid and refractive index; if you need it, I can give it to you, hehe
Yes, measure its acidity and volume; use a measuring cylinder to do the measurement.