A corrective for over acidity is an alkalinesubstance.
酸性过度的中和剂是碱性物质。
2
Seawater, however, is alkaline. This alkalinity causes the glue to set. It solidifies into a foam within 30 seconds and becomes a flexible, leathery substance over the course of several hours.
碱性的海水使得胶质在30秒内凝结为泡沫，并在几小时内变为柔韧的皮状表面。
3
The way of measuring how acidic or alkaline a substance is a scale called pH.