Keiselgurh: Obtained from Diatoms

Diatoms are a type of algae that belong to the group of microorganisms known as phytoplankton. These microscopic organisms are found in various aquatic environments such as oceans, lakes, rivers, and streams. Diatoms have a unique cell wall made of silica, which is a hard and durable material.

Production of Keiselgurh:
- Keiselgurh, also known as diatomaceous earth, is obtained from the fossilized remains of diatoms.
- Over millions of years, diatoms accumulate on the ocean floor and form deposits of silica-rich sediment.
- These deposits are mined and processed to extract the diatomaceous earth, which is then further refined to produce Keiselgurh.

Properties of Keiselgurh:
- Keiselgurh is a heat-resistant material with a high silica content, making it suitable for various industrial applications.
- It has a porous structure, which gives it excellent absorbent properties and filtration capabilities.
- Keiselgurh is used in industries such as agriculture, food and beverage, water treatment, pharmaceuticals, and more.

Applications of Keiselgurh:
- In agriculture, Keiselgurh is used as a natural insecticide and soil amendment.
- In the food and beverage industry, it is used in filtration processes to clarify liquids such as beer, wine, and fruit juices.
- In water treatment, Keiselgurh is used to remove impurities and contaminants from water.

Overall, Keiselgurh obtained from diatoms is a versatile material with unique properties that make it valuable in various industrial applications. Its heat resistance, absorbent nature, and filtration capabilities make it a sought-after material for a wide range of industries.

C..as given in ncert