The human race has always been on a continuous journey of discovery. We have always been a race that is curious and we always try and test out materials on how they work and how they can be put as an advantage for us. We have been discovering substances and chemicals that may or may not be harmful to us, and we have undergone millions of millions of trials and errors to figure out which substances are friendly and which are not.

Liquids can be complicated matter, they can be composed of different chemical arrangements and they can also hold different kinds of substances. Some maybe basic and some maybe acidic, and then some liquids can have chemical elements that behave as volatiles. With the complexity and the way that the arrangements of chemicals for liquids are so complicated – they can be damaged easily because some can be so sensitive to external elements and they can be altered one way or another when they do get damaged.

One property of liquids and substances is thermochromism – this is when a property or a characteristic of a substance may change due to the temperature that it experiences and this ill cause the substance’s color to change. This is most observable on what we call mood rings where the color-sensitive material reacts and gets damaged by the body temperature of the user and the color will change depending on that.

Thermochromism and the sensitivity of the liquid can vary depending on the chemical make up of the substance – which means that they would have different tolerances on how much temperature damage that could take before being altered into another color. Say, the substance in the mood ring can change to the slightest change in temperature of the user, but the substance present in a heat sensitive mug  will only react to high heat, like boiling water.

There are a lot of chemicals that are sensitive to temperature and they are highly sensitive to temperature and they can be damaged right away by temperature, some of these materials are cholesteryl nonanoate or cyanobiphenyls.

Liquids and substances that are highly sensitive can be used in situations where their application and their color changing behavior can be accurately defined – and these applications can be used in baby bottles, refrigerators, thermometers, medical applications and defining propane levels in tanks.

Another application of highly-sensitive liquids are leuco dyes. Leuco dyes are thermochromic dyes that are used into displaying and manifesting colorchange between to materials in the dependence of temperature and these dyes uncommonly are applied on materials directly – they are usually in forms of microcosms. This can be seen in hypercolor fashions where highly violet lactones and weak acids are made to damage each other to produce beautiful pieces of art.