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GB/T 6150.16-2009: Methods for chemical analysis of tungsten concentrates -- Determination of iron content -- The sulfosalicylic acid spectrophotometry
Status: Valid GB/T 6150.16: Evolution and historical versions
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| GB/T 6150.16-2009 | English | 139 |
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Methods for chemical analysis of tungsten concentrates -- Determination of iron content -- The sulfosalicylic acid spectrophotometry
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GB/T 6150.16-2009
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| GB/T 6150.16-1985 | English | 199 |
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Methods for chemical analysis of tungsten concentrates--The atomic absorption spectrophotometric method for the determination of manganese content
| Obsolete |
GB/T 6150.16-1985
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Basic data | Standard ID | GB/T 6150.16-2009 (GB/T6150.16-2009) | | Description (Translated English) | Methods for chemical analysis of tungsten concentrates -- Determination of iron content -- The sulfosalicylic acid spectrophotometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,616 | | Date of Issue | 2009-10-30 | | Date of Implementation | 2010-06-01 | | Older Standard (superseded by this standard) | GB/T 6150.18-1985 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.12 (Total No.152) | | Issuing agency(ies)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 determination of scheelite concentrate iron content. This section applies to the determination of the amount of iron in scheelite. Measuring range: 0. 005% to 1. 00%. | GB/T 6150.16-2009: Methods for chemical analysis of tungsten concentrates -- Determination of iron content -- The sulfosalicylic acid spectrophotometry
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Methods for chemical analysis of tungsten concentrates.Determination of iron content.The sulfosalicylic acid spectrophotometry
ICS 77.120.99
H63
National Standards of People's Republic of China
Replacing GB/T 6150.18-1985
Methods for chemical analysis of tungsten concentrates - Determination of iron content
Sulfosalicylic acid spectrophotometric method
Posted 2009-10-30
2010-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 6150 "Methods for chemical analysis of tungsten concentrates" is divided into 17 parts.
Determination of GB/T 6150.1 Methods for chemical analysis of tungsten concentrates of tungsten trioxide amount of ammonium tungstate burning gravimetric method
GB/T 6150.2 Methods for chemical analysis of tungsten concentrates - Determination of tin content of potassium iodate volumetric method and hydride generation atomic absorption spectrometry
GB/T 6150.3 Methods for chemical analysis of tungsten concentrates - Determination of phosphorus content of phosphorus molybdenum yellow spectrophotometry
Determination of GB/T 6150.4 Methods for chemical analysis of tungsten concentrates sulfur content of high frequency infrared absorption method
Determination of EDTA volumetric method and atomic GB/T 6150.5 Methods for chemical analysis of tungsten concentrates calcium absorption spectrometry
GB/T 6150.6 Methods for chemical analysis of tungsten concentrates - Determination of hygroscopic water gravimetric method
GB/T 6150.7 Methods for chemical analysis of tungsten concentrates - Determination of the amount of tantalum and niobium plasma emission spectroscopy and spectrophotometry
GB/T 6150.8 Methods for chemical analysis of tungsten concentrates - Determination of molybdenum content - Thiocyanate spectrophotometric
GB/T 6150.9 Methods for chemical analysis of tungsten concentrates - Determination of copper content - Flame atomic absorption spectrometry
GB/T 6150.10 Methods for chemical analysis of tungsten concentrates - Determination of lead content by flame atomic absorption spectrometry
GB/T 6150.11 Methods for chemical analysis of tungsten concentrates of zinc content - Flame Atomic Absorption Spectrometry
GB/T 6150.12 Methods for chemical analysis of tungsten concentrates - Determination of silicon dioxide content and weight of molybdenum blue spectrophotometric method
Hydride atomic GB/T 6150.13 Methods for chemical analysis of tungsten concentrates the amount of arsenic absorption spectroscopy and spectroscopic DDTC-Ag
Spectrophotometry
GB/T 6150.14 Methods for chemical analysis of tungsten concentrates - Determination of manganese content of ammonium ferrous sulfate volumetric method and flame atomic absorption spectrometry
GB/T 6150.15 Methods for chemical analysis of tungsten concentrates bismuth content - Flame Atomic Absorption Spectrometry
GB/T 6150.16 Methods for chemical analysis of tungsten concentrates - Determination of iron content sulfonic acid spectrophotometry
Hydride atomic GB/T 6150.17 Methods for chemical analysis of tungsten concentrates antimony content absorption spectrometry
This is Part 16 GB/T 6150's.
This Part replaces GB/T 6150.18-1985 "spectrophotometric determination of the amount of iron chemical analysis of tungsten concentrates sulfosalicylic acid."
Section compared with the GB/T 6150.18-1985 The main changes are as follows.
--- Expanded measurement range from 0.05 percent to 5.00 percent to 0.05% - 10.00%;
--- Colorimetric tube to the flask;
--- Increasing the repeatability limit terms.
This part is proposed by the China Nonferrous Metals Industry Association.
The non-ferrous metal part by the National Standardization Technical Committee.
This section is Ganzhou Nonferrous Metallurgy Research Institute, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting.
This section is Ganzhou Nonferrous Metallurgy Research Institute, Beijing General Research Institute of Mining and Metallurgy drafted.
This section is under ridge Jiangxi Tungsten Industry Co., Ltd., Ganzhou Huaxing Tungsten Products Co., Ltd. participated in the drafting.
The main drafters of this section. Li Ying, Wang Linsheng, Ye Enxia.
This part certifier. Xu Jingguang, Xiao Fusheng, Zhang Qian, Huang new.
This part of the standard replaces the previous editions are.
--- GB/T 6150.18-1985.
Methods for chemical analysis of tungsten concentrates - Determination of iron content
Sulfosalicylic acid spectrophotometric method
1 Scope
This section provides scheelite determination of iron content.
This section applies to the determination of scheelite iron content. Measurement range. from 0.05% to 10.00%.
2 Method summary
Sample hydrochloric acid, nitric acid dissolved, tungsten, tungsten acid precipitation and separation of iron, ammonia medium, hydroxylamine hydrochloride masking manganese, iron and sulfosalicylic
Salicylic acid to form a yellow complex, absorbance was measured in a spectrophotometer at a wavelength of 420nm. Scheelite other impurities do not interfere
Determination.
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or relative purity of water.
3.1 hydrochloride (GR, ρ1.19g/mL).
Nitrate 3.2 (GR, ρ1.42g/mL).
3.3 hydrochloric acid solution (99 + 1).
3.4 ammonia solution (1 + 1).
3.5 sulfosalicylic acid solution (250g/L).
3.6 hydroxylamine hydrochloride solution (50g/L).
3.7 iron standard stock solution. Weigh 1.0000g iron [(Fe) ≥99.95%], placed in 250mL beaker, add 15mL hydrochloric acid
(3.1), 5mL of nitric acid (3.2), completely dissolved by heating, cooling, sulfuric acid was added 10mL (ρ1.84g/mL), and heated to take the thick white smoke, remove
cool down. Beibi and surface water purge pan, heat to dissolve the salt. After cooling water volume to 1000mL volumetric flask, and mix. This solution
1mL containing 1mg iron.
3.8 iron standard solution. Pipette 50.00mL iron standard stock solution (3.7), placed 1000mL volumetric flask, dilute to the mark,
Mix well. This solution 1mL containing 50μg iron.
4 Instrument
Spectrophotometer.
5 Sample
5.1 Sample size of less than 0.074mm.
5.2 sample was pretreated at 105 ℃ ~ 110 ℃ drying 2h, placed in a desiccator to cool to room temperature.
Step 6 Analysis
6.1 Sample
Table 1. Weigh the sample to the nearest 0.0001g.
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