YS/T 1014.1-2014 (YS/T1014.1-2014, YST 1014.1-2014, YST1014.1-2014) & related versions
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Methods for chemical analysis of bismuth trioxide. Part 1: Determination of bismuth trioxide content. Na2 EDTA titrimetric method
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YS/T 1014.1-2014
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YST 1014.1-2014
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YS/T 1014.1-2014: PDF in English (YST 1014.1-2014)
YS/T 1014.1-2014
Methods for chemical analysis of bismuth trioxide Part 1. Determination of bismuth trioxide content Na2 EDTA titrimetric method
ICS 77.120.99
H13
People's Republic of China Nonferrous Metals Industry Standard
Bismuth oxide chemical analysis
Part 1. bismuth trioxide contents -
Na2EDTA titration
Part 1. Determinationofbismuthtrioxidecontent-
Issued on. 2014-10-14
2015-04-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 1014 "Methods for chemical analysis of bismuth trioxide" is divided into five sections.
--- Part 1. bismuth trioxide contents - Na2EDTA titration;
--- Part 2. silver, copper, magnesium, nickel, cobalt, manganese, calcium, iron, cadmium, lead, zinc, antimony, aluminum, sodium, sulfur content - Inductively coupled plasma
Atomic emission spectrometry;
--- Part 3. Determination of chlorine content of silver chloride turbidimetry;
--- Part 4. loss on ignition - Gravimetric method;
--- Part 5. moisture content - Gravimetric method.
This section YS/T 1014 Part 1.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. Zhuzhou Smelter Group Co., Ltd. Guangdong pilot dilute material.
Participated in the drafting of this section. Guangzhou Nonferrous Metal Research Institute, Henan Yuguang Gold & Lead Co., Ltd., Hunan Nonferrous Metal Research Institute.
The main drafters of this section. Jiang Qing, to De Lei, Dai Fengying, Xie Hui, Kong Jianmin, Zhou Junling, Zhu Chan Fang, Wang Kaikai, Juan, Pang Wenlin.
Bismuth oxide chemical analysis
Part 1. bismuth trioxide contents -
Na2EDTA titration
1 Scope
YS/T 1014 This section specifies the method for determination of bismuth trioxide in the amount of bismuth trioxide.
This section applies to the determination of bismuth trioxide bismuth trioxide amount measurement range. ≥98.0%.
2 Method summary
Sample dissolved in nitric acid, sodium acetate to adjust the pH value between 1.5 to 1.7, with xylenol orange as indicator, with standard Na2EDTA
Titration titration solution, measured the amount of bismuth trioxide.
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.
3.1 ascorbic acid.
3.2 nitric acid (ρ = 1.42g/mL).
3.3 nitric acid (595).
3.4 thiourea saturated solution.
3.5 tartaric acid solution (200g/L).
3.6 Anhydrous sodium acetate (200g/L).
3.7 Na2EDTA Standard Solution (about 0.020mol/L).
3.7.1 preparation. Weigh 7.60g disodium edetate in 300mL beaker, add water, heat gently to dissolve, cooled to room temperature and transferred to
1000mL volumetric flask, dilute to the mark, mix, place three days after calibration.
3.7.2 Calibration. Weigh 0.197g bismuth (wBi≥99.99%) (accurate to 0.0001g) 5 parts were placed in 500mL beaker triangle
, The tartaric acid solution is added 5.0mL (3.5), was added 10mL of nitric acid (3.2), a low temperature around completely dissolved by heating, and evaporated to 5mL, taking
Under rinsed with water and dish table Beibi, ascorbic acid was added 0.5g (3.1), 5.0mL saturated solution of thiourea (3.4), 100mL water and shake. With
The same below 6.4.2. Along with the calibration blank test.
According to equation (1) to calculate the actual concentration Na2EDTA standard titration solution.
c =
1000 × m0
(V1-V0) × 208.98
(1)
Where.
The actual concentration c --- Na2EDTA standard titration solution, expressed in moles per liter (mol/L);
m0 --- saying that the quality of the calibration to take bismuth, in grams (g);
--- Bismuth molar mass of 208.98 units of grams per mole (g/mol);
When V1 --- calibration volume Na2EDTA standard titration titration solution consumed bismuth solution in milliliters (mL);
V0 --- the calibration, volume Na2EDTA standard titration solution consumed in the blank titration solution in milliliters (mL).
......
| Standard ID | YS/T 1014.1-2014 (YS/T1014.1-2014) | | Description (Translated English) | Methods for chemical analysis of bismuth trioxide. Part 1: Determination of bismuth trioxide content. Na2 EDTA titrimetric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,616 | | Date of Issue | 2014/10/14 | | Date of Implementation | 2015/4/1 | | Drafting Organization | Zhuzhou Smelter Group Co., Ltd. | | Administrative Organization | National non-ferrous metals Standardization Technical Committee | | Regulation (derived from) | People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180) | | Issuing agency(ies) | Ministry of Industry and Information Technology of the People's Republic of China | | Summary | This Standard specifies the method for determination of bismuth trioxide bismuth oxide content. This section applies to the determination of bismuth trioxide bismuth trioxide amount measuring range: �� 98.0%. |
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