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YS/T 509.1-2008 PDF English

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YS/T 509.1-2008: Methods for chemical analysis of spodumene and lepidolite concentrates. Determination of lithium oxide, sodium oxide, and potassium oxide contents. Flame atomic absorption spectrometric method
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YS/T 509.1: Historical versions

Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
YS/T 509.1-200890 Add to Cart Auto, 9 seconds. Methods for chemical analysis of spodumene and lepidolite concentrates. Determination of lithium oxide, sodium oxide, and potassium oxide contents. Flame atomic absorption spectrometric method  
YS/T 509.1-2006199 Add to Cart 2 days Methods for chemical analysis of spodumenite and lepidolite concentrates The atomic absorption spectrophotometric method for determination of lithium oxide, sodium oxide and potassium oxide contents Obsolete

Similar standards

GB/T 2524   GB/T 3620.1   YS/T 509.2   

YS/T 509.1-2008: Methods for chemical analysis of spodumene and lepidolite concentrates. Determination of lithium oxide, sodium oxide, and potassium oxide contents. Flame atomic absorption spectrometric method



---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/YST509.1-2008
YS NONFERROUS METALS INDUSTRY STANDARD ICS 77.120.99 H 64 Replacing YS/T 509.1-2006 Methods for chemical analysis of spodumene and lepidolite concentrates - Determination of lithium oxide, sodium oxide and potassium oxide contents - Flame atomic absorption spectrometric method Issued on. MARCH 12, 2008 Implemented on. SEPTEMBER 1, 2008 Issued by. National Development and Reform Commission of China

Table of Contents

Foreword... 3 1 Scope... 5 2 Method summary... 5 3 Reagents... 5 4 Instruments... 6 5 Specimen... 7 6 Analysis steps... 7 7 Calculation of analysis results... 9 8 Precision... 9 9 Quality assurance and control... 10

Foreword

YS/T 509 "Methods for chemical analysis of spodumene and lepidolite concentrates" consists of the following 11 parts. - Part 1.Determination of lithium oxide sodium oxide and potassium oxide contents - Flame atomic absorption spectrometric method; - Part 2.Determination of rubidium oxide and caesium oxide contents - Flame atomic absorption spectrometric method; - Part 3.Determination of silicon dioxide content - Gravimetric- molybdenum blue photometric method; - Part 4.Determination of aluminum oxide content - EDTA compleximetric method; - Part 5.Determination of ferric oxide content - O-phenanthroline photometric method and EDTA compleximetric method; - Part 6.Determination of phosphorus pentoxide content - The molybdenum blue photometric method; - Part 7.Determination of beryllium oxide content – Chromazurol S and cetyltrimethyl ammonium bromide spectrophotometric met; - Part 8.Determination of calcium oxide and magnesium oxide content - Flame atomic absorption spectrometric method; - Part 9.Determination of fluorine content - lon selective electrode method; - Part 10.Determination of manganous oxide content-Persulfate oxidation photometric method; - Part 11.Determination of loss on ignition - Gravimetric method. This Part is Part 1. This Part replaces YS/T 509.1-2006 "Methods for chemical analysis of spodumene and lepidolite concentrates The atomic absorption spectrophotometric method for determination of lithium oxide sodium oxide and potassium oxide contents" (previous edition is GB/T 3885.1-1983). Compared with YS/T 509.1-2006, the main changes in this Part are as follows. - re-edited the text format; - added the provisions on quality assurance and control, added repetitive clauses. This Part was proposed by and shall be under the jurisdiction of National Non- ferrous Metals Standardization Technical Committee. Main drafting organization of this Part. Xinjiang Lithium Salt Factory. The drafting organizations of this Part. Yichun Tantalum - niobium Mine, Xinjiang Nonferrous Metal Research Institute. Main drafters of this Part. Xia Shufen, Ji Juanjuan, Qian Wei, Zhang Xingde. Main authenticator of this Part. Jiang Xiaopeng, Guan Yuzhen. Versions of standard substituted by this Standard are. - GB/T 3885.1-1983, YS/T 509.1-2006. Methods for chemical analysis of spodumene and lepidolite concentrates - Determination of lithium oxide, sodium oxide and potassium oxide contents - Flame atomic absorption spectrometric method

1 Scope

This Part specifies the determination methods for lithium oxide, sodium oxide and potassium oxide contents in spodumene, lepidolite concentrates. This Part is applicable to the determinations of lithium oxide, sodium oxide and potassium oxide contents in spodumene, lepidolite concentrates. Determination range. 3.00% ~ 8.00% for lithium oxide; 0.10% ~ 10.00% for sodium oxide, potassium oxide.

2 Method summary

The test material is decomposed with hydrofluoric acid-sulfuric acid. In a sulfuric acid medium, determine the lithium oxide, sodium oxide, and potassium oxide by using an air-acetylene gas lean burn flame at wavelengths of 670.8 nm, 589.0 nm, and 766.5 nm, respectively, in an atomic absorption spectrometer.

3 Reagents

Unless otherwise stated, only the reagents identified as analytically pure and distilled water or water of comparable purity are used in the analysis. 3.1 Hydrofluoric acid (ρ1.15 g/mL). 3.2 Sulfuric acid (1+1). 3.3 Lithium standard stock solution. weigh 2.4729 g of lithium carbonate (99.9% or more) that has been previously dried at 105°C ~ 110°C for 2h and left to cool in a desiccator to room temperature. Place in a 250mL beaker. Add 80mL of water. Cover a wide-mouth bottle. Slowly add 10mL of sulfuric acid from the mouth (3.2). Heat to dissolve all lithium carbonate. Boil off carbon dioxide and cool to room temperature. Blow and wash the wide-mouth bottle with water. Transfer solution to a 1000mL volumetric flask. Dilute with water to the scale, mix well. Move into a dry plastic bottle to store. This solution contains 1.0 mg of lithium oxide per 1 mL. 3.6 Lithium oxide, sodium oxide, and potassium oxide mixed standard solution. transfer 100.00 mL of lithium standard stock solution (3.3), 100.00 mL of sodium oxide standard stock solution (3.4), 100.00 mL of potassium oxide standard stock solution (3.5) into a 1000mL volumetric flask. Dilute to the scale with water. Move into a dry plastic bottle to save. This solution contains 100 µg of lithium oxide, 100 µg of sodium oxide, and 100 µg of potassium oxide per 1 mL. 3.7 Lithium oxide, sodium oxide, and potassium oxide mixed standard solution.

4 Instruments

Atomic absorption spectrometer with air-acetylene burner and lithium, sodium and potassium hollow cathode lamps.

5 Specimen

5.1 Spodumene concentrate shall pass through 0.074mm mesh screen. Lithium mica concentrate Shall pass 0.105mm sieve.

6 Analysis steps

6.1 Test material Weigh 0.10 g of specimen, to the nearest of 0.001 g. 6.2 Measurement quantity Perform the parallel determination of two test materials. Take the average value. 6.3 Blank test Perform the blank test accompanying with test material. 6.4 Determination 6.5 Drawing of working curve 6.5.1 Pipette 0mL, 5.00mL, 10.00mL, 15.00mL, 20.00mL, 25.00mL, 30.00mL, 35.00mL of lithium oxide, sodium oxide and potassium oxide mixed standard solution (3.6) into a set of 100mL volumetric flasks, respectively. 6.5.2 Pipette 0mL, 1.00mL, 2.00mL, 3.00mL, 4.00mL, 5.00mL of mixed standard solution (3.7) into a set of 100mL volumetric flasks, respectively. Add 2.0 mL of sulfuric acid (3.2). Dilute to the scale with water.

7 Calculation of analysis results

Lithium oxide, sodium oxide and potassium oxide mass fraction w, in %, is calculated by.

8 Precision

8.1 Repeatability The results of two independent test results obtained under reproducibility conditions, in the mean range given below, the absolute difference between the two results does not exceed the repeatability limit (r);

9 Quality assurance and control

Use national standard samples or industry-standard samples (control samples can also be used if the two are not available) to check the validity of the analytical method standard weekly or every two weeks. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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