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Ammonium polyphosphate is an inorganic polymer compound, which has a wide range of applications in fire retardant, oil reservoir recovery, water treatment and other fields. The following are the main applications of ammonium polyphosphate:

Strong acid and alkali resistance: Aluminum hydroxide is relatively stable in a neutral or weak alkaline environment, can resist the corrosion of most weak acids or medium-strong acids, and can also neutralize some alkaline substances.

Zinc borate is usually prepared in two ways: neutralization method and hydrothermal synthesis method.