Toluene diisocyanate is combustible in case of open flame and high heat. It can react with oxidants. Reacts violently with amines, alcohols, alkalis and warm water, and can cause combustion or explosion.

Tetrabutylammonium bromide is a common product in the chemical industry, also can be called tetrabutylammonium bromide, is a white crystal, deliquant, soluble in water, alcohol, ether and acetone, slightly soluble in benzene.

Ammonia water, also known as Ammonia water, is a solution of ammonia dissolved in water, is colorless and transparent liquid, has a special irritating odor, volatile, corrosive, weak alkaline, unstable and flammability and other characteristics.

Storage conditions of flammable and explosive risk chemicals, such as methylamine ethanol solution and methylamine methanol solution.

The purity of the reagent sulfuric acid is high, and the impurity content is simply zero. It is designed to be used in chemical tests, chemical analysis.