GB/T 22662.8-2008 English PDF

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GB/T 22662.8-2008: Chemical analysis methods of potassium fluotitanate -- Part 8: Determination of chloride content -- Mercury nitration volumetric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22662.8-2008	149	Add to Cart	2 days	Chemical analysis methods of potassium fluotitanate -- Part 8: Determination of chloride content -- Mercury nitration volumetric method	Valid

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Basic data

Standard ID: GB/T 22662.8-2008 (GB/T22662.8-2008)
Description (Translated English): Chemical analysis methods of potassium fluotitanate -- Part 8: Determination of chloride content -- Mercury nitration volumetric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H61
Classification of International Standard: 77.120.10
Word Count Estimation: 5,556
Date of Issue: 2008-12-29
Date of Implementation: 2009-11-01
Quoted Standard: GB/T 22662.1-2008
Regulation (derived from): National Standard Approval Announcement 2008 No.23 (Total No.136)
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 method for the determination of fluorine chlorine content of potassium titanate. This section applies to the determination of fluorine chlorine content of potassium titanate. Measuring range: �� 0. 5%.

GB/T 22662.8-2008: Chemical analysis methods of potassium fluotitanate -- Part 8: Determination of chloride content -- Mercury nitration volumetric method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Chemical analysis methods of potassium fluotitanate Part 8. Determination of chloride content Mercury nitration volumetric method ICS 77.120.10 H61 National Standards of People's Republic of China Potassium titanate fluorine chemical analysis Part 8. Determination of chlorine content Mercuric nitrate volumetric method Posted 2008-12-29 2009-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 22662 "potassium titanate fluorine chemical analysis method" is divided into nine sections. --- Part 1. Preparation and storage of test samples; --- Part 2. Determination of the weight of water in the wet method; --- Part 3. Determination of fluorine potassium titanate ammonium ferric sulfate volumetric method; --- Part 4. Determination of silicon content - Molybdenum blue spectrophotometric method; --- Part 5. Determination of calcium content by flame atomic absorption spectrometry; --- Part 6. Determination of iron content by flame atomic absorption spectrometry; --- Part 7. Determination of lead content by flame atomic absorption spectrometry; --- Part 8. Determination of the chlorine content of mercuric nitrate volumetric method; --- Part 9. Determination of phosphorus pentoxide content - Molybdenum blue spectrophotometric method. This is Part 8 GB/T 22662 of. 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 drafted. Fluoride Chemicals Co., Ltd. Participated in the drafting of this section. Hunan Nonferrous fluorine chemical limited liability company, Aluminum Corporation of China Zhengzhou Research Institute, Hengyang City State Friends of Chemical Technology Co., Ltd. The main drafters of this section. Xue Xu Jin, Shi Xiuhua, Li Yongqiang, Wang Jianping, Chen Yichun, Xu army, Zhu Liang, Li Zhijian, Du Xiaojuan, Lan Wen Hui, Liu Zhihong Huang Ju in particular, Liu Min. Potassium titanate fluorine chemical analysis Part 8. Determination of chlorine content Mercuric nitrate volumetric method

1 Scope

This section GB/T 22662 specifies the method for determination of fluorine chlorine content of potassium titanate. This section applies to the determination of fluorine in potassium titanate chlorine content. Measuring range. ≤0.5%.

2 Normative references

The following documents contain provisions which, through reference GB/T 22662 in this section 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 22662.1-2008 fluorine potassium titanate chemical analysis methods - Part 1. Preparation and storage of test samples

3 Method summary

In acidic solution nitrate mercury standard solution strongly ionized chlorine ion is converted to weakly ionized mercuric chloride with hydrazine refers diphenylcarbazone Shows agent with an excess of Hg2 + purple generate complex to determine the end point.

4 Reagents

Nitrate 4.1. 1mol/L. 4.2 nitrate mercury standard titration solution 4.2.1 preparation. Weigh 8.565g mercuric nitrate [Hg (NO3) 2 · H2O, pure class distinctions], placed in 250mL beaker, add 50mL of nitric acid (4.1), the solution was dissolved to clarify, if necessary, filtered and transferred to 1000mL volumetric flask, dilute with water to volume, and mix. 4.2.2 Calibration. Pipette 5.00mL three standard sodium chloride solution (0.0500mol/L), were placed in 250mL flask, add water To 100mL, add 2 drops of bromophenol blue indicator, solution of nitric acid to the solution was yellow, then 5 drops of excess, added 1mL diphenylcarbazone hydrazine instructions Agents, mercury nitrate titration standard solution titration solution from yellow to purple is the end. Nitrate mercury standard titration calibrated parallel consumed Differential should not exceed the volume of the solution 0.05mL, averaged. With calibration blank test. 4.3 diphenylcarbazone hydrazide indicator. 5g/L. 4.4 bromophenol blue indicator. 2g/L. 5. Apparatus Commonly used laboratory instruments and equipment.

6 Sample

The specimen shall comply with GB/T 22662.1 requirements in 3.3.

7 Procedure

7.1 Sample Weigh 1.0g sample (6), accurate to 0.0001g. ......

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