Formalin

This post was written by admin on February 2, 2010
Posted Under: Glossary

Formaldehyde solution, Fixing agent ,usually the 10 percent solution is used in Biology

Commercially available formalin solution is usually a 37 % or 40 % (weight / volume) solution. Its better to take this full strength solution to the field to reduce volume and to dilute it before use; For diluting the full strength solution is treated as 100 %, which means that for production of a 10 % solution one part of 40 % formalin solution must be mixed with 9 parts water. Formalin solution is usually acidic (pH 3 to 4.6).

In Parasitology , its hot form-around 70 centigrade – is usually used for Fixation of Cestodes

Its also used for Fixing the Tissues samples for pathology

Sometimes its better to use Buffered Formalin

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