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GB/T 16484.23-2009: Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 23: Determination of acid insoluble substance in light rare earth carbonate -- Gravimetry
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Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 23: Determination of acid insoluble substance in light rare earth carbonate -- Gravimetry
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GB/T 16484.23-2009
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Basic data | Standard ID | GB/T 16484.23-2009 (GB/T16484.23-2009) | | Description (Translated English) | Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 23: Determination of acid insoluble substance in light rare earth carbonate -- Gravimetry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H14 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,613 | | Date of Issue | 2009-10-30 | | Date of Implementation | 2010-05-01 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.12 (Total No.152) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the determination of carbonic acid insoluble light rare earth content. This section applies to the determination of carbonic acid insoluble amount of light rare earths. Measuring range: 0. 10 to 0. 50%. | GB/T 16484.23-2009: Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 23: Determination of acid insoluble substance in light rare earth carbonate -- Gravimetry
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Chemical analysis methods of rare earth chloride and light rare earth carbonate Part 23. Determination of acid insoluble substance in light rare earth carbonate Gravimetry.
ICS 77.120.99
H14
National Standards of People's Republic of China
Earth chloride and light rare earth carbonate chemical analysis methods
Part 23. The light rare earth carbonate
Determination of acid insoluble mass at
Posted 2009-10-30
2010-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 16484-2009 "rare earth chloride and light rare earth carbonate chemical analysis method" is divided into 22 parts.
--- Part 1. Determination of cerium oxide content of ammonium ferrous sulfate titration;
--- Part 2. europium oxide content - Inductively Coupled Plasma Mass Spectrometry;
--- Part 3. 15 with a rare earth element oxide component measured by inductively coupled plasma atomic emission spectrometry;
--- Part 4. Determination of thorium oxide content arsenazo Ⅲ spectrophotometry;
--- Part 5. Determination of barium oxide by inductively coupled plasma atomic emission spectrometry;
--- Part 6. Determination of calcium oxide content by flame atomic absorption spectrometry;
--- Part 7. Determination of magnesium oxide content - Flame atomic absorption spectrometry;
--- Part 8. Determination of the amount of sodium oxide flame atomic absorption spectrometry;
--- Part 9. Determination of the amount of nickel oxide by flame atomic absorption spectrometry;
--- Part 10. Determination of manganese oxide content by flame atomic absorption spectrometry;
--- Part 11. Determination of lead oxide content by flame atomic absorption spectrometry;
--- Part 12. Determination of the amount of sulfate;
--- Part 13. Determination of the amount of ammonium chloride distillation - titration;
--- Part 14. Determination of the amount of phosphate phosphorus antimony molybdenum blue spectrophotometric method;
--- Part 15. light rare earth carbonate - Determination of the amount of chlorine in the silver nitrate turbidimetry;
--- Part 16. rare earth chloride in an amount of water insolubles - Gravimetric method;
--- Part 17. Determination of moisture content in rare earth carbonate;
--- Part 18. Determination of light rare earth carbonate in the weight loss on ignition method;
--- Part 20. nickel oxide, manganese oxide, lead oxide, aluminum oxide, zinc oxide, thorium oxide content - Inductively coupled plasma mass
Spectroscopy;
--- Part 21. Determination of iron oxide content of 1,10 phenanthroline spectrophotometry;
--- Part 22. Determination of the amount of zinc oxide flame atomic absorption spectrometry;
--- Part 23. Determination of carbonic acid insoluble light amount of rare earth gravimetric method.
This section GB/T 16484 part of 23.
This part of the National Standardization Technical Committee rare and centralized.
This section is responsible for drafting unit. Beijing Nonferrous Metal Research Institute, China Nonferrous Metals Industry Institute of Standards and Metrology and Quality.
This section was drafted by the Beijing Nonferrous Metal Research Institute.
Participated in the drafting of this section. Rare-Earth Hi-Tech Company, Jiangsu Jiangyin Jiahua Advanced Material Resources Co., Ltd.
The main drafters of this section. Bing, Liu Pengyu.
The drafters of some of the participants. Dong Sanli, Wu Guangwei, Yao Jingbi, Hefeng Juan.
Earth chloride and light rare earth carbonate chemical analysis methods
Part 23. The light rare earth carbonate
Determination of acid insoluble mass at
1 Scope
GB/T 16484 provisions of this part of the determination of carbonic acid insoluble light amount of rare earths.
This section applies to the determination of acid insoluble carbonate light rare earth, the measurement range. 0.010% to 0.50%
Principle 2
The sample was dissolved in hydrochloric acid, insoluble matter was separated by filtration which is calculated by the amount of acid insoluble mass value after drying.
3 Reagents
Hydrochloric acid (1 + 1).
4 Equipment
4.1 electric oven.200 ℃ ± 2 ℃.
4.2 glass filter (acid filtration funnel). G4.
5 Sample
Weighing the sample immediately after the opening.
Step 6 Analysis
6.1 Sample
Weigh the sample 5.00g, accurate to 0.0001g.
6.2 Determination of the number of
Weigh two samples were measured parallel to the mean value.
6.3 Determination
The sample (6.1) in 250mL beaker, add 20mL of hydrochloric acid (3), the sample was dissolved by heating and evaporated to 2mL ~ 3mL, water
30mL ~ 50mL, micro-heat, use was 105 ℃ ~ 110 ℃ sintered glass funnel to constant weight (4.2) by suction, washed with water once to the beaker 3
5, and the insolubles washed 8 to 10 times. The sintered glass funnel (4.2) together with the acid-insoluble matter into the oven (4.1), and at 105 ℃ ~
110 ℃ drying 1.5h, cooled to room temperature in a desiccator, weighed, repeat the operation until the difference between two adjacent mass does not exceed 1mg.
7 Calculation and expression analysis results
According to equation (1) calculate the acid insoluble mass fraction (%).
W1 (acid insoluble) 1- m1 = m1 m1 × 100 0
(1)
Where.
M1 0 --- glass filter mass in grams (g);
M1 --- quality glass sand funnel and acid insoluble in grams (g);
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