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GB/T 17417.2-2010: Method for chemical analysis of rare earth ores -- Part 2: Determination of scandium content
Status: Valid GB/T 17417.2: Evolution and historical versions
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| GB/T 17417.2-2010 | English | 139 |
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Method for chemical analysis of rare earth ores -- Part 2: Determination of scandium content
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GB/T 17417.2-2010
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| GB/T 17417.2-1998 | English | 199 |
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Method for chemical analysis of rare earth ores--Determination of scandium content--ICP-AES method
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GB/T 17417.2-1998
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Basic data | Standard ID | GB/T 17417.2-2010 (GB/T17417.2-2010) | | Description (Translated English) | Method for chemical analysis of rare earth ores -- Part 2: Determination of scandium content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D43 | | Classification of International Standard | 73.060.99 | | Word Count Estimation | 6,676 | | Date of Issue | 2010-11-10 | | Date of Implementation | 2011-02-01 | | Older Standard (superseded by this standard) | GB/T 17417.2-1998 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | National Standard Approval Announcement 2010 No.8 (Total No.163) | | 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 measuring the amount of rare earth ore Sc. This section applies to rare earth minerals, but also for iridium ore, lithium, cesium ore, zirconium ores and rocks in the determination of the amount of scandium, uranium. Results are expressed in the amount of two scandium. Measuring range: 0. 2��g/g ~ 500��g/g of scandium oxide. | GB/T 17417.2-2010: Method for chemical analysis of rare earth ores -- Part 2: Determination of scandium content
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Method for chemical analysis of rare earth ores Part 2. Determination of scandium content
ICS 73.060.99
D43
National Standards of People's Republic of China
Replacing GB/T 17417.2-1998
Methods for chemical analysis of rare earth ores
Part 2. Determination of the amount of scandium
Part 2. Determinationofscandiumcontent
Issued on. 2010-11-10
2011-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 17417 "Methods for chemical analysis of rare earth mineral" is divided into two parts.
--- Part 1. Determination of the rare earth component;
--- Part 2. Determination of the amount of scandium.
This section GB/T Part of 217,417.
This Part replaces GB/T 17417.2-1998 "inductively coupled plasma atomic emission spectrometry for determination of scandium."
This section compared with the GB/T 17417.2-1998, the main changes are as follows.
--- Modify the standard Chinese name;
--- Modify the standard English name;
--- Increased alert, warning of the content;
--- Increasing the purity of the reagents used and experimental water requirements;
--- Increasing the particle size of the sample and drying requirements;
--- Increased verification test content.
This section presents the People's Republic of China Ministry of Land Resources.
This part of the National Standardization Technical Committee under the jurisdiction of Land and Resources.
This section is responsible for drafting. National geology test center.
This section is drafted. Hubei Institute of Geology.
The main drafters of this section. Zhao Zhifei, Fang Jindong, Tangxing Min.
This part of the standard replaces the previous editions are.
--- GB/T 17417.2-1998.
Methods for chemical analysis of rare earth ores
Part 2. Determination of the amount of scandium
Warning. Use of this portion of the staff should have practical experience in regular laboratory work. This section does not point out all possible security asked
question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
GB/T 17417 provisions of this part of the determination of the amount of rare earth mineral of scandium.
This section applies to the rare earth ore, also applies to beryllium ore, lithium, rubidium, cesium minerals, zirconium ores and rocks Determination of scandium content, the results of three oxygen
Scandium content of two represented.
Measuring range. 0.2μg/g ~ 500μg/g of scandium oxide.
2 Normative references
The following documents contain provisions which, through GB/T 17417 in this part of the reference in terms of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
Laboratory use specifications and test methods GB/T 6682 Analysis
Principle 3
Sample after oxidation of the molten sodium, extracted with water, after clarification and filtration, dissolve the precipitate with hydrochloric acid solution by inductively coupled plasma volume after
Body emission spectrometer scandium content.
4 Reagents
Unless otherwise indicated in the analysis are consistent with the use of analytical reagents and GB/T 6682 water analytical laboratory.
4.1 sodium peroxide.
4.2 NaOH wash (20g/L).
4.3 hydrochloride (ρ1.19g/mL).
4.4 hydrochloride (11).
4.5 hydrochloric acid (149).
4.6 Scandium standard solution.
a) Scandium standard solution. Weigh 50.0mg scandium oxide (mass fraction ≥99.99%) in 100mL beaker, add 10mL
Hydrochloric acid (4.3), dissolved by heating, 250mL flask was cooled transferred, supplemented with 20mL of hydrochloric acid (4.3), cooled to room temperature. Water
Dilute to the mark. The concentration of the solution of scandium oxide was 200.00μg/mL;
b) scandium calibration solution Ⅰ. lessons 25.00mL Scandium standard solution [efficiency 4.6A)], placed in 250mL volumetric flask, washed with hydrochloric acid (19) diluted
Release to the mark. The concentration of the solution of scandium oxide was 20.00μg/mL;
c) scandium calibration solution Ⅱ. lessons 25.00mL scandium calibration solution Ⅰ [4.6b)], set 250mL flask with hydrochloric acid (19)
Dilute to the mark. The concentration of the solution of scandium oxide was 2.00μg/mL.
5 Instruments
5.1 sequential scan inductively coupled plasma emission spectrometer with liquid injection atomizing device, a computer control and data processing systems.
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