AR ammonium paratungstate is the abbreviation for analytical reagent ammonium paratungstate, which is a type of chemical agent with molecular formula of H40N10O20W5 and molecular weight of 1419.57.
Analytical reagent, abbreviated as AR, refers to a reagent used as a common test solution in quantitative analysis, which has high purity. In other words, the analytical reagent ammonium paratungstate has the characteristics of high content of main components and low content of impurities. Therefore, analytical reagent will not hinder analysis and is suitable for industrial analysis and chemical experiments.
There are some characteristics of analytical reagent as follows:
1. For specific purity, there are different requirements in accordance with different analytical applications.
2. The reagent belongs to second grade with label of bronze red.
3. The purity of the analytical reagent is slightly lower than that of guarantee reagent. That is to say, the impurity content of analytical reagent is slightly higher than guarantee reagent’s.
4. Reagent is often small bottle packing, usually 500g/bottle.
More details, please visit:
http://www.ammonium-paratungstate.com/english/index.html
