The eruption in August to October 1991 was a large plinian eruption with a hygroscopicity of the silica caused the formation of morasses around drinking places causing sheep to be trapped and die in huge numbers.
12.
Other sugar alcohols are sometimes used with erythritol, in particular isomalt, because of its minimally positive heat of solution, and glycerin, which has a negative heat of solution, moderate hygroscopicity, and noncrystallizing liquid form.
13.
To prove that the beta crystalline form enhanced efficacy over other polymorphs, it was stated that beta crystalline form has ( i ) more beneficial flow properties, ( ii ) better thermodynamic stability, ( iii ) lower hygroscopicity, and ( iv ) increased bioavailability.
14.
A disadvantage of some inorganic crystals, e . g ., NaI, is their hygroscopicity, a property which requires them to be housed in an airtight enclosure to protect them from moisture . } } and BaF 2 are only slightly hygroscopic and do not usually need protection.
