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YS/T 1161.1-2016 English PDF

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YS/T 1161.1-2016: Chemical analysis methods of pseudoboehmite—Part 1: Determination of gelation index—EDTA titrimetric method
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YS/T 1161.1-2016English139 Add to Cart 3 days [Need to translate] Chemical analysis methods of pseudoboehmite—Part 1: Determination of gelation index—EDTA titrimetric method Valid YS/T 1161.1-2016

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Basic data

Standard ID YS/T 1161.1-2016 (YS/T1161.1-2016)
Description (Translated English) Chemical analysis methods of pseudoboehmite��Part 1: Determination of gelation index��EDTA titrimetric method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H21
Classification of International Standard 77.120.10
Word Count Estimation 6,659
Date of Issue 2016-07-11
Date of Implementation 2017-01-01
Regulation (derived from) Notice of the Ministry of Industry and Information Technology (2016 No. 37)
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the method for determining the peptization index content of pseudo-boehmite.

YS/T 1161.1-2016: Chemical analysis methods of pseudoboehmite—Part 1: Determination of gelation index—EDTA titrimetric method


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Chemical analysis methods of pseudoboehmite-Part 1. Determination of gelation index-EDTA titrimetric method ICS 77.120.10 H21 People's Republic of China non-ferrous metal industry standards Pseudoboehmite analysis method Part 1. Determination of peptization index EDTA volumetric method Part 1.Determinationofgelationindex 2016-07-11 released 2017-01-01 implementation Ministry of Industry and Information Technology of the People's Republic of China

Foreword

YS/T 1161 "pseudo-boehmite analysis method" is divided into the following three sections. --- Part 1. Determination of peptization index EDTA volume method; --- Part 2. Determination of loss on ignition weight method; --- Part 3. Determination of pore volume and specific surface area of nitrogen adsorption method. This part of YS/T 1161 Part 1. This section drafted in accordance with GB/T 1.1-2009 given rules. This part of the National Non-ferrous Metals Standardization Technical Committee (SAC/TC243) and focal point. This part of the drafting unit. Aluminum Shandong Co., Ltd., Henan Branch of Aluminum Corporation of China, Shandong Zibo Sen Chi Fine Chemical Limited. The main drafters of this section. Tian Rui, Shao Jing, Xu Hao Wen, Ai 蓁, following the next business, Hu Jin E. Pseudoboehmite analysis method Part 1. Determination of peptization index EDTA volumetric method

1 Scope

YS/T 1161 provisions of this part of the pseudo-boehmite Determination of peptization index. This section applies to the determination of peptization index in the proposed boehmite, the determination of the range of 88% to 98%.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 8170 rounding rules and limit values expressed and judgment YS/T 1161.2 Pseudo boehmite analysis method Part 2. Determination of loss on ignition Gravimetric method

3 method summary

A certain amount of aluminum hydroxide slurry (concentration calculated as Al2O3) by Al2O3 􀏑 HNO3 = 1 􀏑 0.2 (mass fraction), was added nitric acid After the aluminum hydroxide in the peptizable part of the alumina content with EDTA complex titration, the measured amount of alumina accounted for the total percentage of alumina Is the peptization index.

4 reagent

4.1 Zinc oxide. Reference reagent (ZnO content ≥ 99.9%). 4.2 Nitric acid (19). Pipette 50.00mL of concentrated nitric acid (ρ = 1.42g/mL) in 500mL volumetric flask with water to volume. 4.3 Ammonia (1 1). Hydrochloric acid (2.5 mol/L). 4.5 Sulfuric acid (1 1). 4.6 bromocresol green solution (0.2% absolute ethanol). 4.7 Buffer solution (pH value 5.7) Weigh 121g of anhydrous sodium acetate dissolved in water, add 9.6mL of glacial acetic acid (ρ = 1.05g/mL) Dilute to 1L with water. 4.8 buffer solution (pH value of 10). Weigh 54g of ammonium chloride dissolved in.200mL of water, add 350mL ammonia (ρ = 0.91g/mL) Dilute to 1L with water. 4.9 Xylenol orange solution (1g/L). Weigh 0.1g xylenol orange, dissolved in water and diluted to 100mL (effective within one month). 4.10 Chrome Black T indicator solution (5g/L). 4.11 ethylenediaminetetraacetic acid disodium (EDTA) standard solution (0.01mol/L) 4.11.1 Preparation. Weigh 75gEDTA, dissolved in hot water, diluted with water to 1L. Filter with cotton wool spare. Pipette 510mL

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