1. An ester or a salt of perchloric acid.

2. Describes the changing of the classical perchloric acid dehydration gravimetric method for determining silicon into the molybdenum blue photometric method to fast determine the content of silicon.

3. METHODSColorimetry was used with vanillin - perchloric acid as coloring reagent to determine the content of total saponins.

4. The results indicate that the product yield of perchloric acid reaches 80 %.

5. Amines were extracted with perchloric acid solution and derived with dansyl chloride.

6. Structure Fluorine perchlorate should be analogous to perchloric acid, but with the replacement of the lone hydrogen atom with an atom of fluorine.

7. A new Preparation of perchloric acid and sodium chlorite from sodium chlorate via - oxidation - reduction reaction is reported.

8. Figure out the chemical reaction equation of Quinidine Sulfate perchloric acid and the equivalent relationship.

9. Sodium formate from waste alkali liquor was analyzed by perchloric acid nonaqueous titration instead of potassium permanganate method, which caused larger deviation.

10. Figure out the chemical reaction equation of Quinidine Sulfate with perchloric acid and the equivalent relationship.

11. The method is simple, fast and accurate, compared with conventional perchloric acid dehydrate gravimetric analysis.

12. As manufacturer and exporter, we make a certain contribution to the development of perchloric acid.http:///perchloric acid.html

13. Lily powder was pre - treated by nitric acid and perchloric acid before determination.

14. Organo mineral compound fertilizers are digested with sulfuric acid hydrogen peroxide and nitric acid perchloric acid, respectively, and then their total potassium content is determined.

15. A new method for determination of starch content with perchloric acid is developed.

16. ASTM D2896-03 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration.