用potassium nitrate造句子，“potassium nitrate”造句

Gunpowder is composed of sulfur, carbon, and potassium nitrate.

Based on the technology requirements of potassium nitrate production and the properties of materials, a plate heat exchanger was designed for cooling and heat exchange.

Then they immerse this electrode in a potassium nitrate electrolyte solution.

Through the test, the domestic KCl is purified by chemical precipitation process and can be met the requirement for the production of agriculture-grade potassium nitrate.

Mainly engaged in exporting of the products. Such as potassium nitrate, calcium nitrate, calcium ammonium nitrate and 26 kinds of chemical products, flanges, glassware and so on.