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Rhenium is a metal with an atomic number of 75 and is represented by the chemical symbol Re. It was first discovered in 1925. It is one of the rarest naturally occurring elements in the world. It also has one of the highest melting points of any element. This attribute is one of the main reasons that rhenium is an important element in many industries.
Magnesium oxide, also called magnesia, is a chemical compound made from magnesium and oxygen. Magnesium oxide occurs naturally in the environment, but it is also possible to create it by burning magnesium ribbon in air. When the magnesium burns it oxidizes, and the by-product is magnesium oxide. It is very stable at high temperatures, which is one of the reasons it is a useful substance in many industries.
Calcium chloride is a chemical compound made up of calcium and chlorine. Traditionally it is made by dissolving marble or limestone in hydrochloric acid, but it can be produced directly from limestone or as a by-product of the ammonia-soda process. It can cause skin irritation and must be handled carefully.
Thymol is known as an extract of the thyme plant, but it can also be found in other kinds of plants. It is a natural compound made of carbon, hydrogen and oxygen that is found in the oil of thyme. Thymol is responsible for the distinct flavour of the herb thyme, but it also has many other applications.
Potassium permanganate is a chemical compound made up of potassium, manganese and oxygen. It is a dark purple crystal-like solid and when dissolved in water it creates an intense purple solution. It is a stable compound, but can cause fire if it comes into contact with a combustible material. The following are some of the common uses for this chemical compound.
Liquid nitrogen is the element nitrogen in a liquid state that is kept at a very low temperature. The liquid nitrogen boils at -196°C (-321°F) and releases nitrogen gas. It is capable of causing very rapid freezing and this is one of the attributes that makes this substance so useful. Let’s take a look at some of the most common applications of liquid nitrogen.
Seaweed is the term used for many different types of organic plant matter that grows in the oceans. The word is commonly used for the plant matter that can be seen washed up on surf beaches, but it can also relate to microscopic algae. Although it may not appear very useful, many different types of seaweed actually have important uses. In fact, seaweed is even farmed in many countries.
Safflower oil is produced from the oil of the safflower seed. There are two different types of safflower that produce oil with different qualities. The oil has a similar nutritional value to sunflower oil and is both flavorless and colorless. It is produced in many countries for its variety of uses.
Cotton is a soft fiber that grows to provide protection for the seeds of the cotton plant. It is native to many tropical and subtropical regions of the Earth. It’s earliest use dates back to at least 5800 BC. Today, it is grown commercially throughout much of the world. The top producers are China, India, United States, Pakistan and Brazil. Cotton is susceptible to a range of pests and disease, which means that cotton farmers must use heavy chemicals such as pesticides. Recently, scientists have genetically modified the cotton plant to reduce the reliance on these chemicals.
Butane is a gas made up of carbon and hydrogen. It is a highly flammable gas that is colorless, odorless and easy to liquify. These characteristics make it highly useful for certain applications.