Electrochemical Studies of Monoterpenic Thiosemicarbazones as Corrosion Inhibitor for Steel in 1 M HCl

Table 1

IUPAC name, molecular structure, molecular formula, melting point, and analytical data of studied Monoterpenic Thiosemicarbazones.

Name of inhibitor	Chemical structure	Analytical data
Camphor thiosemicarbazone (5)		Chemical formula: C11H19N3S
		Exact mass: 225.13
		Molecular weight: 225.35
		Solid
		m.p: 154-155°C
Carvone thiosemicarbazone (6)		Chemical formula: C11H17N3S
		Exact mass: 223.11
		Molecular weight: 223.34
		Solid
		m.p: 111-112°C;
Pulegone thiosemicarbazone (7)		Chemical formula: C11H19N3S
		Exact mass: 225.13
		Molecular weight: 225.35
		oil