Is it possible to have an rf greater than 1

The principle of TLC is the distribution of a compound between a solid fixed phase the thin layer applied to a glass or plastic plate and a liquid mobile phase eluting solvent that is moving over the solid phase. Which solvent system gave the best results? For most separations, the solvent should be less polar than the compounds. The compounds must also be soluble in the solvent so they are not permanently adsorbed.

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Q: Is it possible to have a Rf value greater than 1? Write your answer Related questions. What is the relationship between chain length and Rf value? What is the biggest value possible for an Rf value? Why the value of Rf is less than 1? Why is the Rf value always less than 1 in relation to chromatography? What is the RF value for red ink blue ink and green ink? What is the significance of Rf value in chromatography? How is RF value useful in paper chromatography?

What is the Rf value for aspirin? Why are Rf values always less than 1? What does Rf value tell you about the solubility of a pigment?

Why can an Rf value never be greater than 1. Why polar compounds have less Rf value? What is the rf value of cocaine? How does saturation effect RF value? What is rf value of eugenol? What ia a RF value?

What does RF value stand for in chromatoghrahy? Is a Rf value of 0. What is an rf value used for? You developed your chromatogram too long and you can't find the solvent front describe and explian the possible effect on your results of the error? What is the Rf value of anthocyanin? What does an Rf value indicate? How do you work out RF value? Why is Rf value different? Why is the Rf value useful? People also asked. Also, what is the RF value and its importance in chromatography?

The Rf value represents the difference between the migration of the developing solvent and the compound being evaluated in Thin-Layer Chromatography TLC. The Rf value serves as a simple measurement of the relative binding of the compound of interest under the experimental conditions. The Rf values indicate how soluble the particular pigment is in the solvent by how high the pigment moves on the paper.

Small Rf values tend to indicate larger, less soluble pigments while the highly soluble pigments have an Rf value near to one. You divide the distance of your compounds by the distance of your solvent, and you've got the Rf ratio. The farther a compound travelled, the larger it's Rf value. Logically, you can conclude that if a compound A travels farther than compound B in a polar solvent, then it is more polar than solvent B.

By definition, Rf values are always less than 1. An Rf value of 1 or too close to it means that the spot and the solvent front travel close together and is therefore unreliable. This happens when the eluting solvent is too polar for the sample. The quality of the paper. Distance through which the solvent runs. The stronger a compound is bound to the adsorbent , the slower it moves up the TLC plate.

Non-polar compounds move up the plate most rapidly higher Rf value , whereas polar substances travel up the TLC plate slowly or not at all lower Rf value.

Silica gel is by far the most widely used adsorbent and remains the dominant stationary phase for TLC. The surface of silica gel with the highest concentration of geminal and associated silanols is favored most for the chromatography of basic compounds because these silanols are less acidic. It is primarily used to determine the purity of a compound.

A pure solid will show only one spot on a developed TLC plate. In addition, tentative identification of the unknown compound can be made through TLC analysis. Thin layer chromatography, or TLC , is a method for analyzing mixtures by separating the compounds in the mixture.