Nitrolim, commonly known as calcium cyanide, is a chemical compound. However, it is known as "lime nitrogen" in the commercial world. The term nitrolim is an abbreviation for nitro-lime. CaCN2 is the chemical formula for calcium cyanide.
Nitrolim thus has the same chemical formula as calcium cyanide.
Let's have a look at how calcium cyanide is made:
Adolph Frank and Nikodem Caro initially synthesized calcium cyanide in 1898 (the reaction is known as the Frank-Caro method).
When nitrogen is run over calcium carbide at an appropriate temperature (i.e., approximately 1000\(^{\circ}\) – 1100\(^{\circ}\)C), we produce nitrolim, which is a combination of calcium cyanide and carbon. The following is a balanced chemical reaction:
CaC2+N2→CaCN2+C
By fusing nitrolim with sodium carbonate, sodium cyanide is produced. The reaction can be represented as CaCN2+Na2CO3+2C2NaCN+CaO+2CO.
As a result, the products created are calcium cyanide (CaCN2) and carbon, which we might call graphite (a crystalline form of carbon).