Efficient pyridine free Karl; High efficiency pyridine free Karl Fischer Tropsch reagent produced by Dalian Honghe Petroleum Analysis Instrument Co., Ltd; The Feixiu reagent adopts a brand new formula and process flow, fully ensuring the consistency of reaction time and temperature. All technical indicators of the brand new product have reached the level. This product has the characteristics of low toxicity, stability, and high sensitivity, and is suitable for the determination of moisture content in most substances in the fields of petroleum, chemical, pharmaceutical, power, food, textile, etc.