Table 3.

Thermal parameters of span 60 and acyclovir in pure form and granules.

	Peak 1		Peak 2		peak 3		Span 60	Peak
	mp °C	∆H(J/g)	mp °C	∆H(J/g)	mp °C	∆H(J/g)	mp °C	∆H(J/g)
Pure drug	130.3	145.8	173.9	5.2	257.8	187.4	57.95	86.38
15% span	134.4	86.82	173.4	12.9	253.1	143.6	57.42	10.12
20% span	134.1	62.09	173.4	10.99	252.7	144.2	57.13	16.52
25% span	134.7	54.36	173.5	8.92	255.1	141.5	57.17	11.86