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GB/T 11064.11-2013 PDF English

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GB/T 11064.11-2013: Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride -- Part 11: Determination of acid-insoluble content -- Gravimetric method
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GB/T 11064.11: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
GB/T 11064.11-2013English85 Add to Cart 0-9 seconds. Auto-delivery Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride -- Part 11: Determination of acid-insoluble content -- Gravimetric method Valid
GB/T 11064.11-1989English199 Add to Cart 2 days Lithium carbonate, lithium hydroxide monohydrate and lithium chloride--Determination of acid-insolubles--Gravimetric method Obsolete

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GB/T 11064.11-2013: Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride -- Part 11: Determination of acid-insoluble content -- Gravimetric method



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GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.99 H 64 Replacing GB/T 11064.11-1989 Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride - Part 11.Determination of acid-insolubles content - Gravimetric method Issued on. NOVEMBER 27, 2013 Implemented on. AUGUST 01, 2014 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China; Standardization Administration of the People’s Republic of China.

Table of Contents

Foreword... 3 1 Scope... 5 2 Method Summary... 5 3 Reagents... 5 4 Instrument... 5 5 Samples... 5 6 Analysis Steps... 6 7 Calculation of Analysis Results... 6 8 Precision... 7 9 Test report... 7

Foreword

GB/T 11064 “Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride” is divided into 16 parts. - Part 1.Determination of lithium carbonate content - Acid-alkali titrimetric method; - Part 2.Determination of lithium hydroxide content - Acid-alkali titrimetric method; - Part 3.Determination of lithium chloride content - Potentiometric method; - Part 4.Determination of potassium and sodium content - Flame atomic absorption spectrometric method; - Part 5.Determination of calcium content - Flame atomic absorption spectrometric method; - Part 6.Determination of magnesium content - Flame atomic absorption spectrometric method; - Part 7.Determination of iron content - 1,10-phenanthroline spectrophotometric method; - Part 8.Determination of silicon content - Molybdenum blue spectrophotometric method; - Part 9.Determination of sulfate content - Barium sulfate nephelometry method; - Part 10.Determination of chloride content - Silver chloride nephelometry method; - Part 11.Determination of Acid-insolubles Content - Gravimetric method; - Part 12.Determination of carbonate content - Determination of lithium chloride content - Potentiometric method; - Part 13.Determination of aluminum content - Chromazurol S-cetylpyridine bromide spectrophotometric method; - Part 14.Determination of arsenic content - Molybdenum blue spectrophotometric method; - Part 15.Determination of fluoride content - Ion selective method; - Part 16.Determination of calcium, magnesium, copper, lead, zinc, nickel, manganese, cadmium and aluminum content - Inductively coupled plasma atomic emission spectrometry. This Part is part 11 of GB/T 11064. This Part is drafted in accordance with rules given in GB/T 1.1-2009. This Part replaces GB/T 11064.11-1989 "Lithium carbonate, lithium hydroxide monohydrate and lithium chloride - Determination of acid-insolubles - Gravimetric method". Compared with GB/T 11064.11-1989, the main changes of this Part are as follows. - ADD the repeatability terms; - RE-EDIT the text format; ADD the test report. This Part shall be under the jurisdiction of National Standardization Technical Committee of Nonferrous Metals (SAC/TC 243). Drafting organizations of this Part. Xinjiang Wuxin Lithium Salt Development Co., Ltd., Xinjiang Research Institute of Non ferrous Metals, and Beijing General Research Institute of Mining & Metallurgy. The main drafters of this Part. Lv Minghui, Xia Shufen, Guan Yuzhen, Feng Xianjin, and Zhu Xiangyu. The historical version replaced by this Part is as follows. - GB/T 11064.11-1989. Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride - Part 11.Determination of acid-insolubles content-Gravimetric method This Part of GB/T 11064 specifies the determination method of acid-insolubles content in lithium carbonate, in lithium hydroxide monohydrate, and in lithium chloride. This Part applies to the determination of acid-insolubles content in lithium carbonate, in lithium hydroxide monohydrate, and in lithium chloride. The determination range. 0.0050%~0.020%. The sample is dissolved with hydrochloric acid. Heat it to boiling; filter it with a sand-core glass crucible. Then dry it at 105°C~110°C to constant-mass. Unless otherwise indicated, the reagent used in this Part is an analytical pure reagent, and the water used in this Part is the distilled or deionized water. 3.1 Hydrochloric acid (ρ=1.19g/mL). 3.2 Methyl orange indicator (1g/L). weigh 0.1g of methyl orange; dissolve it in the 70°C water. Cool it down; dilute it to 100mL. 4.1 Oven. 4.2 Sand-core glass crucible. filter plate aperture. 5μm~15μm 5.1 The samples of lithium carbonate and lithium chloride shall be preheated at 250°C~260°C for 2h; then cool down to room temperature in a desiccator. 6.1 Samples Weigh 50g of the sample, accurate to 0.01g. 6.2 Number of Determination Independently carry out two measurements; take the mean value. 6.3 Blank Test 6.3.1 Place the sample (6.1) into a 600mL beaker; add 200ml of water and 1 drop of methyl orange indicator (3.2). Neutralize it with hydrochloric acid (3.1) until the solution appears in red, and to be 1mL over the volume. Heat it to boiling for 5min; then cool it down.

8 Precision

8.1 Repeatability For the two independent test results obtained under repeatability conditions, within the average-value range as given below, the absolute difference of these two test results does not exceed the repeatability limit (r), and the situation exceeding repeatability limit (r) is not more than 5%. Repeatability limit (r), according to the following, adopts linear interpolation to obtain.

9 Test report

The test report shall contain the following content. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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