GB/T 40795.1-2021 《Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1: Determination of cerium content—Ammonium ferrous sulfate titration method》 Related products
This standard specifies a method for the determination of cerium content in lanthanum-cerium metal and its compounds using the Titrimetric method of ammonium ferrous sulfate. It is suitable for the determination of the mass fraction of cerium in lanthanum-cerium metal and the content of cerium oxidation in lanthanum-cerium oxidation, lanthanum-cerium carbonic acid and lanthanum-cerium chloride. The standard details the operation steps of dissolving the sample, oxidizing cerium with perchlorate in phosphoric acid medium, and determining the cerium content by titration. This method provides an important analytical means for the quality control of related materials and is suitable for the chemical analysis of rare earth elements.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active |
|---|---|
| CCS | H14 | ICS | 77.120.99 |
| Release Date | 2021-10-11 00:00:00 | Implementation Date | 2022-05-01 00:00:00 |
Extended reading
- 1GB/T 17832-2021《Silver jewellery alloys—Determination of silver—Volumetric (potentiometric) method using potassium bromide》
- 2GB/T 18996-2021《Silver jewellery alloys—Determination of silver—Volumetric(potentiometric) method using sodium chloride or potassium chloride》
- 3GB/T 20373-2021《Determination of acetyl content in modified starch—Titrimetric method》
- 4GB/T 39748.10-2021《Urine-absorbing aids for incontinence—Test methods for characterizing polymer-based absorbent materials—Part 10:Determination of extractable polymer content by potentiometric titration》
- 5GB/T 39719-2020《Field and concentrated natural rubber latices—Determination of magnesium content—Cyanide-free titrimetric method》
- 6GB/T 39138.1-2020《Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 1：Determination of gold content—Potentiometric titration using ferrous sulfate》
- 7GB/Z 39124-2020《Method for chemical analysis of lead concentrates—Determination of antimony content—Ce(SO4)2 titration method》
- 8GB/T 6730.82-2020《Iron ores—Determination of barium content—EDTA titrimetric method》
- 9GB/T 5686.7-2022《Ferromanganese，ferromanganese-silicon，nitrogen-bearing ferromanganese and manganese metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization method》
- 10GB/T 38812.4-2022《Direct reduced iron—Determination of metallic iron—Bromine-methanol titrimetric method》