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GB/T 5059.6-2007: Ferromolybdenum -- Determination of phosphorus content -- Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
Status: Valid GB/T 5059.6: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5059.6-2007 | English | 209 |
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Ferromolybdenum -- Determination of phosphorus content -- Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
| Valid |
GB/T 5059.6-2007
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| GB/T 5059.6-1986 | English | 199 |
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Methods for chemical analysis of ferromolybdenum--The molybdenum blue photometric method for the determination of phosphorus content
| Obsolete |
GB/T 5059.6-1986
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PDF similar to GB/T 5059.6-2007
Basic data | Standard ID | GB/T 5059.6-2007 (GB/T5059.6-2007) | | Description (Translated English) | Ferromolybdenum -- Determination of phosphorus content -- Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H11 | | Classification of International Standard | 77.100 | | Word Count Estimation | 8,868 | | Date of Issue | 2007-09-11 | | Date of Implementation | 2008-02-01 | | Older Standard (superseded by this standard) | GB/T 5059.6-1986 | | Quoted Standard | GB/T 4010 | | Regulation (derived from) | China National Standard Approval Announcement2007 No.11 (Total No.111) | | 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 use of phosphorus molybdenum blue spectrophotometry bismuth and molybdenum blue spectrophotometric determination of molybdenum iron phosphorus content. This section applies to the determination of molybdenum iron phosphorus content. Measuring range (mass fraction): 0. 010% to 0. 150 %. | GB/T 5059.6-2007: Ferromolybdenum -- Determination of phosphorus content -- Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
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Ferromolybdenum. Determination of phosphorus content. Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometrc method
ICS 77.100
H11
National Standards of People's Republic of China
Replacing GB/T 5059.6-1986
Determination of phosphorus content of ferromolybdenum
Bismuth phosphorus molybdenum blue spectrophotometric method and the molybdenum blue spectrophotometric method
Posted 2007-09-11
2008-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
5059.6-1986 "Mo iron chemical analysis of molybdenum blue spectrophotometric determination of this part of GB/T 5059-2007 instead of GB/T
Phosphorus content. "
This portion of the GB/T 5059.6-1986 compared to the main changes to the new addition of bismuth phosphorus molybdenum blue spectrophotometric method.
This part is proposed by the China Iron and Steel Association.
This section is under the jurisdiction of Metallurgical Industry Information Standards Institute.
This section is drafted. Sichuan Investment Emei Ferroalloy (Group) Co., Ltd.
The main drafters of this section. should Tang Hua, Fang Yan, Liu Huili.
This part of the standard replaces the previous editions are.
--- GB/T 5059.6-1986.
Determination of phosphorus content of ferromolybdenum
Bismuth phosphorus molybdenum blue spectrophotometric method and the molybdenum blue spectrophotometric method
Warning --- Use this section shall be a person experiences 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 5059 provisions of this part of the bismuth phosphorus molybdenum blue spectrophotometric method and the molybdenum blue spectrophotometric determination of phosphorus content in ferromolybdenum.
This section applies to the determination of molybdenum iron phosphorus content measurement range (mass fraction). 0.010% to 0.150%.
2 Normative references
The following documents contain provisions which, through reference to GB/T 5059 to the present, constitute provisions 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.
GB/T 4010 alloy chemical analysis and preparation of samples
Method 3 a bismuth phosphomolybdate blue spectrophotometry
3.1 Principle
Sample dilute nitric acid, hydrofluoric acid decomposition, perchloric acid, sulfuric acid, phosphorus oxide smoke. Sulfuric smoke after treatment with hydrochloric acid dissolved salts with ammonia
Water to iron hydroxide and iron phosphate is separated from the matrix, most co-precipitation of molybdenum. Sulfuric acid to dissolve the precipitate in sulfuric acid medium with thiosulfate
High sodium reduction of arsenic, phosphorus and bismuth nitrate, ammonium molybdate form a ternary complex, after reduction with ascorbic acid, phosphorus, forming bismuth phosphorus molybdenum blue spectrophotometric
Count on 700nm wavelength measured absorbance.
3.2 Reagents and materials
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or its equivalent purity water.
3.2.1 hydrofluoric acid, ρ1.15g/mL.
3.2.2 perchloric acid, ρ1.67g/mL.
3.2.3 ammonia, ρ0.90g/mL.
3.2.4 nitric acid, 1 + 2.
3.2.5 hydrochloric acid, 1 + 2.
3.2.6 sulfuric acid, 1 + 1.
3.2.7 sulfate, 1 + 4.
3.2.8 sulfuric acid, 1 + 7.
3.2.9 sulfate, 1 + 50.
3.2.10 sodium thiosulfate solution, 10g/L. 1L containing 20g of anhydrous sodium sulfite, now equipped with time.
3.2.11 bismuth nitrate solution, 30g/L. Weigh 30g of bismuth nitrate [Bi (NO3) 3 · 5H2O], was dissolved in 100mL nitrate (1.42g/L)
In until completely dissolved by adding 900mL water, 4g urea, and mix.
3.2.12 ammonium molybdate solution, 15g/L. Weigh 15g of ammonium molybdate [(NH4) 6Mo7O24 · 4H2O], placed in 400mL beaker, add
200mL water, warm dissolved by adding 800mL of water after filtration, and mix.
3.2.13 ascorbic acid solution, 10g/L. Ethanol (1 + 1), when using the existing service.
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