What is the most common dehydrant?

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Multiple Choice

What is the most common dehydrant?

Removing water from tissue during processing relies on alcohols that replace water without overly distorting the structure. Ethanol is the most common dehydrant because it efficiently replaces water in a graded series and is compatible with the subsequent clearing and paraffin embedding steps. It’s inexpensive, widely available, and less toxic than methanol, making it the standard choice. While acetone and isopropanol can be used in some protocols, they have drawbacks—acetone can be too aggressive and harden tissue, and isopropanol isn’t as universally reliable. Therefore, ethanol serves as the go-to dehydrant in routine histology.

Removing water from tissue during processing relies on alcohols that replace water without overly distorting the structure. Ethanol is the most common dehydrant because it efficiently replaces water in a graded series and is compatible with the subsequent clearing and paraffin embedding steps. It’s inexpensive, widely available, and less toxic than methanol, making it the standard choice. While acetone and isopropanol can be used in some protocols, they have drawbacks—acetone can be too aggressive and harden tissue, and isopropanol isn’t as universally reliable. Therefore, ethanol serves as the go-to dehydrant in routine histology.

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