what is an alkali and where do we use them
Most of us have heard of acids and bases. Alkali is another name for a base. There are numerous definitions for a base but a common one is that they contain the OH^- when in solution. They are used in chemistry labs, in commercial practice to make soaps, neutralize acids, etc. Here is a web site where you can read more about an alkali.
http://en.wikipedia.org/wiki/Alkali
alkali is a metal not encluding hydrogen and it is very reactive metals
An alkali refers to a type of chemical compound that has basic or alkaline properties. These compounds are typically formed by elements from Group 1 of the periodic table, such as sodium (Na), potassium (K), or lithium (Li).
In terms of applications, alkalis find widespread use in various industries and everyday life. Here are a few examples:
1. Cleaning Products: Alkalis, including sodium hydroxide (NaOH) or potassium hydroxide (KOH), are commonly used in cleaning agents such as drain cleaners, detergents, and oven cleaners due to their ability to break down grease, oils, and other organic materials.
2. Water Treatment: Alkalis play a crucial role in adjusting the pH level of water in swimming pools, drinking water treatment plants, and industrial processes. Sodium carbonate (Na2CO3) or sodium hydrogencarbonate (NaHCO3) are often used in water treatment to neutralize acidity.
3. Food Industry: Certain alkalis, like sodium hydroxide, are used in food processing and preparation. For example, they are used to remove the skins of fruits and vegetables, adjust the pH of food products, or make pretzels by giving them a distinctive texture and flavor.
4. Manufacturing: Alkalis are utilized in various manufacturing processes, including the production of paper, textiles, soaps, and detergents. They are also used as catalysts or reactants in the synthesis of various chemicals.
It's important to note that handling alkalis requires proper safety precautions as they can be corrosive and can cause harm if not used correctly.