Why does a lipid leave a translucent stain on brown paper?

It depends on what coats the paper, but my guess is that the coat would prevent the lipid from absorbing into the paper. For a lipid test to work, the lipid has to be absorbed to determine if the paper becomes translucent. ...

Sudan red can be used to test for lipids. It is soluble in lipids so it will turn the entire sample red. Also, you can do the brown paper test. Put a few drops of the suspected lipid onto a brown paper bag. If the substance is a lipid, it will turn the spots translucent. ...

The paper become translucent when a small amount of lipids are added in a spot. ...

Glass is translucent pure water is translucent tissue paper is NOT translucent ...

Tracing paper is translucent:)

you can make paper translucent by putting water on the paper

No black paper is not translucent ts opaque

Your mama makes the paper translucent.

We just did a lab on this in my bio class. The Sudan test uses Sudan IV reagent. If a lipid or fat is present, red globs of fat will appear at the top of the solution. If not, there won't be a reaction. The translucence test is when a drop of liquid is placed on an unglazed paper. Water will dry up and leave the paper crinkly. An oil or fat will spread out, and leave a stain, not really...

Wax paper is translucent.

A translucent spot is where some light can pass through a paper which you've used to test for the presence of lipids. In this case, the cause of the translucent spot is the presence of the high molecular weight fatty acids which have not evaporated. Essential oils also leave a translucent spot on paper. ~Wrein Haill Tinman ...

Translucent-wax paper, plastic, tracing paper, tissue paper, frosted glass ...

A Simple experiment to determine if a white substance is a lipid or a carbohydrate is to rub it on a brown paper bag. If it leaves a greasy spot its a lipid. ...

Since some light can pass through, the paper is translucent.

the lightest type of regular paper is vellum paper it is usually like tracing paper because it is soo light it is translucent that is where you get "translucent vellum paper" ...

Yes, wax paper is translucent because it only lets some light go through.

If you put a banana into a brown paper bag and leave in the fridge overnight it will go brown ...

Paper becomes translucent.

cellophane paper, tracing paper and wax paper.

An example of translucent material is wax paper etc. etc.

Translucent materials do not preserve the qualities and details of light passing through them. Thin eggshells are translucent, as is baking paper, tracing paper, frosted glass, and some plastic films. ...

Testing for fats involves rubbing the solid against a white or brown paper bag. If the solid is fat, it will turn the paper translucent else, the paper will be wet or maintain its original state. ...

It is just thinner than other paper like paper towels.

Paper,tracing paper,ground glass

In food science this test is used to determine if a substance is fat or not. It is a crude test but it works in a pinch. Rubbing the unknown substance on the brown paper bag if fat is present the bag will get translucent. If it is water based it just gets wet. ...