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GB/T 14353.9-2010 English PDF

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GB/T 14353.9-2010: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 9: Determination of molybdenum content
Status: Valid

GB/T 14353.9: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 14353.9-2010English209 Add to Cart 3 days [Need to translate] Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 9: Determination of molybdenum content Valid GB/T 14353.9-2010
GB/T 14353.9-1993English239 Add to Cart 2 days [Need to translate] Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of molybdenum Obsolete GB/T 14353.9-1993

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Basic data

Standard ID GB/T 14353.9-2010 (GB/T14353.9-2010)
Description (Translated English) Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 9: Determination of molybdenum content
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D40
Classification of International Standard 73.060
Word Count Estimation 9,971
Date of Issue 2010-11-10
Date of Implementation 2011-02-01
Older Standard (superseded by this standard) GB/T 14353.9-1993
Quoted Standard GB/T 6682; GB/T 14505
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 copper ore, Determination of molybdenum content of zinc ores, booze. This section applies to copper ore, lead ores, determination of molybdenum content of zinc ores. Measuring range: Polarographic 0. 5��g/g ~ 10��g/g of molybdenum thiocyanate photometric 0. 005% to 2% molybdenum.

GB/T 14353.9-2010: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 9: Determination of molybdenum content


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Methods for chemical analysis of copper ores, lead ores and zinc ores.Part 9. Determination of molybdenum content ICS 73.060 D40 National Standards of People's Republic of China Replacing GB/T 14353.9-1993 Copper ores lead ores and zinc ores - Methods for chemical analysis Part 9. Determination of molybdenum content Methodsforchemicalanalysisofcopperores, leadoresandzincores- Part 9. Determinationofmolybdenumcontent 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 14353 "copper ores lead ores and zinc ores chemical analysis method" is divided into 18 parts. --- Part 1. Determination of copper content; --- Part 2. Determination of lead content; --- Part 3. Determination of the amount of zinc; --- Part 4. Determination of cadmium content; --- Part 5. Determination of nickel content; --- Part 6. Determination of cobalt content; --- Part 7. Determination of arsenic content; --- Part 8. Determination of the amount of bismuth; --- Part 9. Determination of molybdenum; --- Part 10. Determination of tungsten; --- Part 11. determination of silver; --- Part 12. Determination of sulfur content; --- Part 13. the amount of gallium, indium and thallium amount for determination; --- Part 14. Determination of germanium content; --- Part 15. Determination of the amount of selenium; --- Part 16. Determination of tellurium content; --- Part 17. Determination of the amount of thallium; --- Part 18. the amount of copper, lead content, the amount of zinc, cobalt and nickel content determination. This section GB/T Part of 914,353. This Part replaces GB/T 14353.9-1993 "copper ores lead ores and zinc ores - Methods for chemical analysis of molybdenum determination." Section compared with the GB/T 14353.9-1993, major changes in the following. --- Increased alert, warnings; --- Modify the sample drying temperature; --- Delete the original Appendix B (Supplementary) butyl acetate extraction spectrophotometric determination of molybdenum --- thiocyanate. Appendix A of this section is an informative annex. 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 drafted. the Shaanxi Provincial Institute of Experimental Geology and Mineral Resources. The main drafters of this section. Luozhen Qi, Hu Jianping, Mou is the warehouse. This part of the standard replaces the previous editions are. --- GB/T 14353.9-1993. Copper ores lead ores and zinc ores - Methods for chemical analysis Part 9. Determination of molybdenum content Warning. Use of this section a person shall be regular laboratory work experience. This section does not indicate that all possible security issues. 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 14353 provisions of this part of the copper ore, lead ore, molybdenum determination of the amount of zinc ore. This section applies to copper ore, lead ore, determination of molybdenum content of zinc ore. Measurement range. Polarography 0.5μg/g ~ 10μg/g of molybdenum; thiocyanate spectrophotometry 0.005% to 2% molybdenum.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this section, dated references, all subsequent Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to reach an agreement is part of the present study Whether 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 GB/T 14505 method for chemical analysis of rocks and ores General rules and regulations 3 sulfuric acid - phenyl acetic acid - cinchonine - potassium chlorate system POLAROGRAPHY 3.1 Principle Sample decomposition by alkali fusion, hot water extraction. Iron, titanium, cobalt, nickel and other elements and molybdenum hydroxide precipitate was separated from the sulfuric acid - phenyl acetic acid - oct Ning - potassium chlorate system, molybdenum, a sensitive polarographic catalytic wave. On Polarograph starting potential is -0.02V (saturated calomel electrode as reference Ratio), peak potential is -0.28V Department, with Polarograph derivative portion measuring peak current value to calculate the amount of molybdenum. 3.2 Reagents Unless otherwise stated in this section are consistent with the use of analytical reagent and GB/T 6682 analytical laboratory use in the analysis. 3.2.1 sodium peroxide. 3.2.2 sodium hydroxide. 3.2.3 ethanol. 3.2.4 sulfuric acid (11), Warning. Improper dilution can be dangerous 3.2.5 benzene glycolic acid solution (100g/L). Weigh 10g of benzene glycolic acid, add water 50mL, micro heat solubilizing (if required turbidity filter into 100mL volumetric flask, and washed with water Filter), dilute to the mark. 3.2.6 cinchonine solution (4g/L). Weigh 0.4g cinchonine, add 4 drops of sulfuric acid (3.2.4), add water, dissolved and transferred to 100mL volumetric flask, dilute with water to the mark, Shake well. 3.2.7 potassium chlorate solution (60g/L). Weigh 30g of potassium chlorate was added 400mL of water, heated to dissolve, cooled and diluted to 500mL, stir well. 3.2.8 Molybdenum Standard Solution. a) Molybdenum standard stock solution [ρ (Mo) = 100.0μg/mL]. 0.1500g weighed molybdenum trioxide (99.99%) (500 ℃ burning 1h, cooling backup), placed in a beaker of 100mL, 10mL was added sodium hydroxide solution (200g/L) was dissolved with sulfuric acid (3.2.4)

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