High-density tianli chemical instrument co., LTD., explains chemical reagent is research, chemical composition analysis of relative standard substance, is the important condition of science and techno
Dangerous goods are those which are corrosive, natural, flammable, toxic or explosive in nature and which are likely to cause personal injury or death or damage to property during transportation, load
Reagents whose purity is much higher than that of the prime grade are called high purity reagents. Developed on the basis of general reagents, reagents of the highest purity are produced by special me
Chemical reagent quality level is complex, variety is numerous, especially chaos. There are 225 kinds of general conventional varieties (first class reagents), that is, necessary varieties.