For the usual activated products, this content is of the order of 0.6 to 0.3 mol water per mol alumina and their specific surface, measured' by nitrogen adsorption at-l95' according to the BET. method, attains 200 to 250 sq. meters per gram, which corresponds to an excellent activity.
Octyl cyanoacrylate was developed to address toxicity concerns and to reduce skin irritation and allergic response. Cyanoacrylate adhesives are sometimes known generically as instant glues, power glues or superglues (although Super Glue is a trade name). The abbreviation CA is commonly used for industrial grades.
Types of Adhesives. Adhesives, also called glue ,, bond two separate materials together and are often used instead of mechanical fastening for several reasons. Adhesives limit the amount of weight in the finished project, especially when weight is an important factor in structural integrity.