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GB/T 5059.2-2014: Ferromolybdenum -- Determination of antimony content -- Malachite green spectrophotometric method
Status: Valid GB/T 5059.2: Evolution and historical versions
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| GB/T 5059.2-2014 | English | 139 |
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Ferromolybdenum -- Determination of antimony content -- Malachite green spectrophotometric method
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GB/T 5059.2-2014
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| GB/T 5059.2-1985 | English | 199 |
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Methods for chemical analysis of ferromolybdenum--The malachite green spectrophotometric method for the determination of antimony content
| Obsolete |
GB/T 5059.2-1985
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PDF similar to GB/T 5059.2-2014
Basic data | Standard ID | GB/T 5059.2-2014 (GB/T5059.2-2014) | | Description (Translated English) | Ferromolybdenum -- Determination of antimony content -- Malachite green spectrophotometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H11 | | Classification of International Standard | 77.100 | | Word Count Estimation | 6,683 | | Date of Issue | 6/9/2014 | | Date of Implementation | 1/1/2015 | | Older Standard (superseded by this standard) | GB/T 5059.2-1985 | | Quoted Standard | GB/T 4010 | | Regulation (derived from) | National Standards Bulletin No. 11 of 2014 | | Issuing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 malachite green spectrophotometry key iron antimony content approach. This Standard applies to the determination of the key iron antimony content. Measuring range (mass fraction): 0. 005% ~ 0. 120%. | GB/T 5059.2-2014: Ferromolybdenum -- Determination of antimony content -- Malachite green spectrophotometric method
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Ferromolybdenum. Determination of antimony content. Malachite green spectrophotometric method
ICS 77.100
H11
National Standards of People's Republic of China
Replacing GB/T 5059.2-1985
Determination of antimony content of ferromolybdenum
Malachite Green Spectrophotometry
Issued on. 2014-06-09
2015-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 5059 "ferro molybdenum" is divided into the following sections.
--- Part 1. Determination of molybdenum iron molybdenum content of lead molybdate gravimetric method, ammonium metavanadate titration and 8-hydroxyquinoline gravimetric method;
--- Part 2. Determination of antimony content ferromolybdenum malachite green spectrophotometry;
--- Part 3. Determination of Fe, Cu, Mo Flame atomic absorption spectrometric method;
--- Part 5. Determination of silicon content ferromolybdenum sulfuric acid dehydration gravimetric method and silicon molybdenum blue spectrophotometric method;
--- Part 6. Determination of phosphorus content of iron molybdenum bismuth phosphomolybdate blue spectrophotometric method and the molybdenum blue spectrophotometric method;
--- Part 7. Determination of carbon content ferromolybdenum The infrared absorption method;
--- Part 9. molybdenum iron sulfur content Infrared absorption method and combustion iodometric method.
This section GB/T 5059 Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 5059.2-1985 "Methods for chemical analysis of ferromolybdenum malachite green spectrophotometric determination of antimony." This portion
GB/T 5059.2-1985 compared to, in addition to editorial changes, the major technical changes are as follows.
--- To increase the content of Chapter 2 and Chapter 9;
--- Increase the warning.
This part is proposed by the China Iron and Steel Association.
This part of pig iron and ferroalloy by the National Standardization Technical Committee (SAC/TC318) centralized.
This section is drafted. Sinosteel Jilin Ferroalloy Co., Ltd.
The main drafters of this section. Yuan Ping, Zhang Yu Shuai, Gu Xin, Wu Liyu, high Yumin.
This part of the standard replaces the previous editions are.
--- GB/T 5059.2-1985.
Determination of antimony content of ferromolybdenum
Malachite Green Spectrophotometry
Warning. Use of this section shall be a person experiences regular laboratory work. This standard does not point out 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 5059 provisions of this part of the malachite green spectrophotometric determination of molybdenum iron antimony content approach.
This section applies to the determination of molybdenum iron antimony content. Measurement range (mass fraction). 0.005% and 0.120%.
2 Normative references
The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 4010 alloy chemical analysis and preparation of samples
Principle 3
The sample was dissolved by nitric acid, sulfuric acid treatment white smoke, dissolved salts with hydrochloric acid, was added tin dichloride in an acidic solution, the reduction of antimony into three
Price, then with sodium nitrite oxidizing trivalent to pentavalent antimony, with the destruction of excess urea sodium nitrite added malachite green and pentavalent antimony generate green
Complexes, extracted with toluene, measured at 640nm wavelength spectrophotometer absorbance.
4 Reagents and materials
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or its equivalent purity water.
4.1 toluene.
4.2 nitric acid, 13.
4.3 hydrochloric acid, 11.
4.4 sulfuric acid, 11.
4.5 sulfuric acid, 18.
4.6 stannous chloride solution, 10g of stannous chloride dissolved in 100mL of hydrochloric acid (4.3), and mix well.
4.7 sodium nitrite solution, 100g/L.
4.8 urea solution, the urea weighed 50g, was dissolved in 50mL of water, mix, cool to room temperature.
4.9 malachite green solution, weighed 0.5g malachite green, was dissolved in 100mL (3 1) of ethanol, and mix.
4.10 Antimony standard solution.
4.10.1 Weigh 0.1000g antimony (mass fraction greater than 99.9%), was dissolved in 50mL of concentrated sulfuric acid, concentrated sulfuric acid was added 50mL cold
but. Moved into the pre-filled with 600mL of water 1000mL volumetric flask, dilute with water to volume, and mix. This solution containing 1mL
0.1mg antimony.
4.10.2 Pipette 10.00mL antimony standard solution (4.10.1), placed in 500mL volumetric flask, dilute sulfuric acid (4.5) to the mark and mix.
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