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.
Hot glue is a special thermal plastic that can be melted from its stick form and then applied to a surface with an electrically heated glue gun. This adhesive works especially well on paper and cardboard. It doesn't adhere very well to wood, probably because of the wood oils.ot glue is a special thermal plastic that can be melted from its stick form and then applied to a surface with an electrically heated glue gun. This adhesive works especially well on paper and cardboard. It doesn't adhere very well to wood, probably because of the wood oils.