Chemistry, asked by mksh, 1 year ago

what is formalin write the use of it

Answers

Answered by khushi65041
9
HEY MATE....

Formalin is a colourless solution of formaldehyde in water.
It is mainly used as a preservative for biological specimen.

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Answered by Anonymous
3
We often confuse formaldehyde and formalin, but there is most definitely a distinct difference. Formaldehyde, as we mentioned earlier, is a gas. Formalin, on the other hand, is a liquid solution that contains formaldehyde. Formalin is a liquid we have used in biology class to preserve our biological specimens. Because of the presence of formaldehyde in formalin, it delays decay, so this helps us to study our biological specimens for a longer period of time. Formalin is also used in preserving tissue samples, so it is used in histology, which is the study of microscopic tissues, and similar fields as well.


What is formaldehyde? Formaldehyde, also known as methanal, is a colorless and flammable gas that has a pungent smell and is soluble in water. I always thought that formaldehyde was a liquid, but its basic form is actually a gas. The chemical formula of formaldehyde is CH2O: it has one carbon (C) atom, two hydrogen (H) atoms and one oxygen (O) atom. Its chemical formula can also be written as HCHO, and its chemical structure

The chemical structure of formaldehyde that is shown on screen can be written two ways. On the left (1), it shows all the carbon, hydrogen and oxygen atoms present in the structure. Another way to write it is shown on the right (2). Here, instead of writing in the carbon (C) atom, it is represented by an edge, or bend, in the line. When looking at its chemical structure, you'll see that formaldehyde has a carbon atom that has single bonds with two hydrogen atoms on both sides, and it has a double bond with oxygen.

Formaldehyde is an organic compound because it has a carbon atom present in its chemical formula. It is also classified as an aldehyde, which is an organic compound (shown here as RC=OH) that contains a formyl group (boxed in red) and an R group, which is a group that contains carbon and/or hydrogen.

A formyl group is the group in the chemical structure that contains (-CHO), also shown on screen. Because there are only hydrogen atoms bonded to the carbon atom, we can also remember formaldehyde as the simplest aldehyde. We can see that the R group in formaldehyde contains one hydrogen atom.



We mostly know that formaldehyde is used for preserving biological specimens and also in embalming, but it has other uses as well. In this section, we will learn all about the different uses of formaldehyde. We encounter it more often than we think .

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