You can't really see ethyl hydrogen sulfate. It's a colorless, oily liquid that is highly corrosive and can cause severe burns. Here's what you need to know:

* Appearance: It's a transparent, oily liquid, similar to water.

* Odor: It has a pungent, acidic odor.

* Properties: It is highly corrosive and can cause severe burns. It is also a strong acid and can react violently with water, releasing heat.

Important Note: Ethyl hydrogen sulfate is a dangerous chemical. You should never handle it without proper safety training and equipment. If you need to work with it, consult the safety data sheet (SDS) for specific handling instructions.