2 years ago

An study about toxicity of Potassium Benzoate

Sodium benzoate acid preservatives, is commonly used in acidic condition, under acid read more...



2 years ago

Application and research progress of High strength and High modulus PVA fiber

PVA is has the potential to produce one of super-high strength fiber flexible polymer chain, and according to the main chain of the  read more...



2 years ago

The introduction and applications of Hydrazine Hydrate

Synthesis of hydrazine in 1875, has been 100 years of history. Since the end of world war ii, the germans will be used for rock read more...