Table 4.

Weight loss parameters for CS in 4.0 M HCl free and containing various concentration of the prepared inhibitors at room temperature.

Inh	Conc. (M)	r, g/cm2.h	θ
–	Blank	2.98	–	–
DCSM-8	1 × 10–6 M 1 × 10–5 M 5 × 10–5 M 1 × 10–4 M 5 × 10–4 M 1 × 10–3 M	0.4102 0.3382 0.2886 0.2413 0.2077 0.1926	0.86234 0.88651 0.90315 0.91903 0.93031 0.93537	86.234 88.651 90.315 91.903 93.031 93.537
DCSM-10	1 × 10–6 M 1 × 10–5 M 5 × 10–5 M 1 × 10–4 M 5 × 10–4 M 1 × 10–3 M	0.3385 0.3026 0.2653 0.2141 0.1856 0.1787	0.88640 0.89846 0.91097 0.92815 0.93772 0.94003	88.64 89.846 91.097 92.815 93.772 94.003
DCSM-12	1 × 10–6 M 1 × 10–5 M 5 × 10–5 M 1 × 10–4 M 5 × 10–4 M 1 × 10–3 M	0.2817 0.2534 0.2095 0.1719 0.1307 0.1054	0.90546 0.91497 0.92971 0.94232 0.95614 0.96463	90.546 91.497 92.971 94.232 95.614 96.463