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GB/T 16484.15-2009: Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 15: Determination of chlorine content in light rare earth carbonate -- Silver nitrate turbidimetry
Status: Valid GB/T 16484.15: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 16484.15-2009 | English | 169 |
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Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 15: Determination of chlorine content in light rare earth carbonate -- Silver nitrate turbidimetry
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GB/T 16484.15-2009
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| GB/T 16484.15-1996 | English | 199 |
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Methods for chemical analysis of rare earth chloride and carbonate--Determination of chlorine content in rare earth carbonate
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GB/T 16484.15-1996
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Basic data | Standard ID | GB/T 16484.15-2009 (GB/T16484.15-2009) | | Description (Translated English) | Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 15: Determination of chlorine content in light rare earth carbonate -- Silver nitrate turbidimetry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H14 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 7,741 | | Date of Issue | 2009-10-30 | | Date of Implementation | 2010-05-01 | | Older Standard (superseded by this standard) | GB/T 16484.15-1996 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.12 (Total No.152) | | Issuing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 method for the determination of chlorine in light rare earth carbonate content. This section applies to the determination of the light rare earth carbonate, chlorine content. Measuring range: 0. 005% to 0. 50 %. | GB/T 16484.15-2009: Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 15: Determination of chlorine content in light rare earth carbonate -- Silver nitrate turbidimetry
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Chemical analysis methods of rare earth chloride and light rare earth carbonate Part 15. Determination of chlorine content in light rare earth carbonate Silver nitrate turbidimetry.
ICS 77.120.99
H14
National Standards of People's Republic of China
Replacing GB/T 16484.15-1996
Earth chloride and light rare earth carbonate chemical analysis methods
Part 15. light rare earth carbonate in determining the amount of chlorine
Silver nitrate turbidimetry
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 Spectrometry;
--- 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 is Part 15 GB/T 16484 of.
This Part replaces GB/T 16484.15-1996 "earth chloride and carbonate chemical analysis of rare earth carbonate method in determining the amount of chlorine."
This section compared with the GB/T 16484.15-1996, have the following main changes.
--- Silver nitrate turbidimetric method instead of mercury thiocyanate - iron nitrate spectrophotometry;
--- Increasing the precision of the terms;
--- Increased quality assurance and control provisions;
--- Standard text made editorial changes.
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. Ganzhou Nonferrous Metallurgy Research Institute, Baotou Steel Rare Earth Hi-Tech Company.
The main drafters of this section. Yang Ping, Chen Yun red.
The drafters of some of the participants. GEOCRYOLOGY Wangming Zhen, Zhang Yu.
This part of the alternative criteria previously issued as follows.
--- GB/T 16484.15-1996.
Earth chloride and light rare earth carbonate chemical analysis methods
Part 15. light rare earth carbonate in determining the amount of chlorine
Silver nitrate turbidimetry
1 Scope
GB/T 16484 specifies the determination of this part of the light rare earth carbonate in the amount of chlorine.
This section applies to the determination of light rare earth carbonate in the amount of chlorine. Measurement range. 0.0050% to 0.50%.
2 principle of the method
The sample is dissolved in dilute nitric acid, dilute nitric acid medium, chloride ions and chloride ions to form silver colloidal silver, colloidal silver chloride in solution into a suspension
Floating state, in the presence of a stabilizing agent, glycerol, in the spectrophotometer at a wavelength of 430nm were turbidity, on the working curve corresponding Richard
Chlorine content.
3 Reagents and materials
3.1 nitrate (ρ1.4g/mL), pure class distinctions.
3.2 Hydrogen peroxide (30%).
3.3 nitric acid (1 + 1).
3.4 nitric acid (1 + 3).
3.5 silver nitrate (5g/L).
Glycerin 3.6 (1 + 1).
Secondary ion exchanged water to 3.7. before use chlorine ion (of Cl-) test. Amount of water in 20mL colorimetric tube, add 2mL nitric acid
Silver (3.5), shaking gently, incubated at 60 ℃ water bath 10min, without visual turbidity before use.
3.8 Storage chlorine standard solution. Weigh 1.6485g by 400 ℃ ~ 450 ℃ calcined sodium chloride (excellent pure) in 500mL beaker,
Add 200mL water dissolved. Moved into 1000mL volumetric flask and dilute to volume, and mix. This solution 1mL 1mg containing chlorine.
3.9 chlorine standard solution. Pipette 10.00mL chlorine standard stock solution (3.8) in 500mL flask, diluted with water to the mark.
This solution 1mL containing 20μg chlorine.
4 Instrument
Spectrophotometer.
5 Sample
Preparation of light rare earth carbonate sample. weigh the sample immediately after the opening.
Step 6 Analysis
6.1 Sample
Table 1 sample was weighed, accurate to 0.0001g.
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