Lime in the form of stone is the fifth most abundant element in the world's crust. Limestone/chalk forms 20% of the world's sedimentary rock. As early as the fourth millennium BC quicklime was used as building material and through history its range of uses has broadened.

Lime is a generic term which covers the stone and processed chemicals on calcium.

Calcium is the 5th most abundant element in the worlds crust and limestone/chalk forms 20% of the world's sedimentary rock. The earliest records of burning stone to make quicklime date back to the fourth millennium BC, when it was used as a building material and throughout history its range of uses has widened.

Many recent applications of lime are in the field of environmental improvement, reducing pollution and creating useable products from what was previously waste. Today lime and its derivatives are used in a broad spectrum of applications, which have a major impact on our daily lives.