GB/T 11064.1-2024 PDF EnglishUS$275.00 · In stock · Download in 9 seconds
GB/T 11064.1-2024: Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride - Part 1: Determination of lithium carbonate content - Titration Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 11064.1: Historical versions
Similar standardsGB/T 11064.1-2024: Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride - Part 1: Determination of lithium carbonate content - Titration---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT11064.1-2024 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.99 CCS H 14 GB/T 11064.1-2024 Replacing GB/T 11064.1-2013 Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride - Part 1. Determination of lithium carbonate content - Titration Issued on. SEPTEMBER 29, 2024 Implemented on. APRIL 01, 2025 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 Introduction... 6 1 Scope... 8 2 Normative references... 8 3 Terms and definitions... 8 4 Method 1.acid-alkali titrimetric method... 9 4.1 Principle... 9 4.2 Reagents or materials... 9 4.3 Instrument... 10 4.4 Sample... 10 4.5 Test procedure... 10 4.6 Test data processing... 10 4.7 Precision... 11 5 Method 2.potentiometric method... 12 5.1 Principle... 12 5.2 Reagents or materials... 12 5.3 Instrument... 13 5.4 Sample... 13 5.5 Test procedure... 13 5.6 Test data processing... 13 5.7 Precision... 14 6 Test report... 15 Annex A (informative) Statistical results of raw data of precision test... 16ForewordThis document was drafted in accordance with the provisions of GB/T 1.1-2020 “Directives for standardization - Part 1.Rules for the structure and drafting of standardizing documents”. This document is Part 1 of GB/T 11064 “Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride”. GB/T 11064 has published the following parts. - Part 1.Determination of lithium carbonate content - Titration; - 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 turbidity 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 - Acid-alkali titrimetric method; - Part 13.Determination of aluminum content - Chromazurol S-cetylpyridinium 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, aluminum, iron and sulfate contents - Inductively coupled plasma atomic emission spectrometry. This document replaces GB/T 11064.1-2013 “Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride - Part 1. Determination of lithium carbonate content - Acid-alkali titrimetric method”. Compared with GB/T 11064.1-2013, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) MODIFY the concentration of hydrochloric acid standard titration solution (see 4.2.3 of this document, 3.2.1 of the 2013 edition); b) MODIFY the relevant content of “weighing mass” (see 4.5 of this document, 5.1 of the 2013 edition); c) ADD the relevant content of “blank test” (see 4.5.3 of this document); d) MODIFY the relevant content of “test data processing” (see 4.6 of this document, Clause 6 of the 2013 edition); e) DELETE the relevant content of “allowable difference” (see 7.2 of the 2013 edition); f) ADD the reproducibility clause (see 4.7.2 of this document); g) ADD the potentiometric method (see Clause 5 of this document). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing authority of this document shall not be held responsible for identifying any or all such patent rights. This document was proposed by China Nonferrous Metals Industry Association. This document shall be under the jurisdiction of National Technical Committee on Nonferrous Metals of Standardization Administration of China (SAC/TC 243). Drafting organizations of this document. Jiangxi Ganfeng Lithium Industry Group Co., Ltd., Yichun Tianzhuo New Materials Co., Ltd., Yichun Yinli New Energy Co., Ltd., Shandong Ruifu Lithium Industry Co., Ltd., Tianqi Lithium New Energy Materials (Suzhou) Co., Ltd., Yahua Lithium Industry (Ya’an) Co., Ltd., Center for Industrial Analysis and Testing of Guangdong Academy of Sciences, Swiss Metrohm China Co., Ltd., Jiangxi Yongxing Special Steel New Energy Technology Co., Ltd., GEM (Wuxi) Energy Materials Co., Ltd., Xinjiang Nonferrous Metals Research Institute Co., Ltd., Guangdong Brunp Recycling Technology Co., Ltd., Jiangsu Ronghui General Lithium Co., Ltd., Tangshan Xinfeng Lithium Co., Ltd., Zhejiang Huayou Cobalt Co., Ltd., Chengdu Chemphys High Energy Chemical Industry Co., Ltd., Chengxin Lithium Group Co., Ltd., Jiangxi Dongpeng New Material Co., Ltd., Guobiao (Beijing) Testing and Certification Co., Ltd., Yichun Lithium Battery Industry Research Institute (Jiangxi Lithium Battery Product Quality Supervision and Inspection Center), Jiangxi Jiuling Lithium Industry Co., Ltd., Urumqi Ya’ou Rare Metals Co., Ltd., Ningdu Ganfeng Lithium Co., Ltd., China Nonferrous Metals (Guilin) Geology and Minning Co., Ltd. Main drafters of this document. Li Qiang, Zhao Wentao, Zhou Jiahong, Wu Jinfang, Xiong Xiaoyan, Liu Binhua, Huang Yanjun, Kang Rujin, Zhang Jun, Zhao Jiang, Liu Shanshan, Chen Yujun, Wang Yongsheng, Xie Tangfeng, Yang Lei, Wen Guangxue, Xu Jianqing, Cai Rongfu, Wu Xuefeng, Peng Wenxiu, Zhang Yuxin, Dai Zehua, Wu Ling, Deng Hongyun, Yang Huilin, Yao Li, Weina, Dai Xiaoyong, Xie Hui, Xu Hua. This document was first issued in 1989 and revised for the first time in 2013.This is the second revision.1 ScopeThis document describes the determination methods of lithium carbonate content in lithium carbonate products, including acid-alkali titrimetric method (method 1) and potentiometric method (method 2). This document applies to the determination of lithium carbonate content in lithium carbonate products, and the determination range (mass fraction). greater than 95.00 %. If other forms of carbonate exist, they will be converted into lithium carbonate for deduction.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6682 Water for analytical laboratory use - Specification and test methods GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 12805 Laboratory glassware - Burettes GB/T 17433 Foundation terms for chemical analysis of metallurgical products3 Terms and definitionsFor the purpose of this document, the terms and definitions defined in GB/T 17433 apply. 4 Method 1.acid-alkali titrimetric method 4.1 Principle The test material is dissolved in a certain amount of water, and methyl red-bromocresol green is used as an indicator. The solution is titrated with a standard hydrochloric acid titration solution until the solution changes from green to wine red. 4.2 Reagents or materials Unless otherwise specified, only analytical reagents are used. 4.2.1 Water, GB/T 6682, grade 2, boiled and sealed and cooled to room temperature. 4.2.2 Methyl red-bromocresol green indicator. weigh 0.1 g of bromocresol green, dissolve in ethanol (95 %), and dilute to 100 mL with ethanol (95 %) (solution I); weigh 0.2 g of methyl red, dissolve in ethanol (95 %), and dilute to 100 mL with ethanol (95 %) (solution II). Take 30 mL of solution I and 10 mL of solution II and mix them well. 4.2.3 Hydrochloric acid standard titration solution (about 0.50 mol/L). pipette 45 mL of hydrochloric acid (ρ = 1.19 g/mL) into a 1000 mL volumetric flask, dilute to the mark with water, and mix well. 4.3 Instrument Burette with stopper (Grade A), specification 50 mL, shall comply with the provisions of GB/T 12805. 4.4 Sample The sample is pre-dried at 250 ℃ ~ 260 ℃ for 2 h, placed in a desiccator, and cooled to room temperature. 4.5 Test procedure 4.5.1 Test material Weigh 0.5 g of sample (4.4) to the nearest 0.0001 g. 4.5.4 Determination Place the test material (4.5.1) in a 250 mL conical flask, add 20 mL of water to dissolve the test material, add 10 drops of methyl red-bromocresol green indicator (4.2.2), titrate with hydrochloric acid standard titration solution (4.2.3) until the test solution changes from green to wine red, boil for 2 min, drive off carbon dioxide, cool, and continue the titration test until the test solution turns wine red, which is the end point. 4.6 Test data processing The lithium carbonate content is calculated as the mass fraction of lithium carbonate, w, according to formula (2). 4.7 Precision 4.7.1 Repeatability The absolute difference between the two independent test results obtained under repeatability conditions does not exceed the repeatability limit (r), as shown in Table 1, and the case of exceeding repeatability limit (r) does not exceed 5 %. The original data of precision test is shown in Annex A. 4.7.2 Reproducibility The absolute difference between the two independent test results obtained under reproducibility conditions shall not exceed the reproducibility limit (R), as shown in 5 Method 2.potentiometric method 5.1 Principle The test material is dissolved in a certain amount of water and titrated using a potentiometric titrator, with a pH glass composite electrode as the working electrode and a hydrochloric acid standard titration solution as the titrant. 5.2 Reagents or materials Unless otherwise specified, only analytical reagents shall be used. 5.2.1 Water, GB/T 6682, grade 2, boiled and sealed and cooled to room temperature. 5.2.2 Methyl red-bromocresol green indicator. weigh 0.1 g of bromocresol green, dissolve in ethanol (95 %), and dilute to 100 mL with ethanol (95 %) (solution I); 5.2.3 Hydrochloric acid standard titration solution (about 0.50 mol/L). 5.3 Instrument Potentiometric titrator. 5.4 Sample to room temperature. 5.5 Test procedure 5.5.1 Test material Weigh 0.5 g of sample (5.4) to the nearest 0.0001 g. 5.5.2 Parallel test Perform two tests in parallel and take the average value. 5.5.3 Blank test Perform a blank test with the test sample. 5.6 Test data processing The lithium carbonate content is calculated as the mass fraction of lithium carbonate, w, according to formula (4). 5.7 Precision 5.7.1 Repeatability The absolute difference between the two independent test results obtained under repeatability conditions does not exceed the repeatability limit (r), as shown in Table 3, and the case of exceeding repeatability limit (r) does not exceed 5 %. 5.7.2 Reproducibility The absolute difference between the two independent test results obtained under reproducibility conditions does not exceed the reproducibility limit (R), as shown in Table 4, and the case of exceeding repeatability limit (R) does not exceed 5 %.6 Test reportThe test report shall at least give the following. - the test object; - the serial number of this document; - the method used; - the analysis results and their expression; - the differences from the basic analysis procedure; - the abnormal phenomena observed; - the test date.Annex A(informative) Statistical results of raw data of precision test A.1 The precision data of acid-alkali titration was determined by joint tests of 19 laboratories on 4 different levels of lithium carbonate samples. Each laboratory independently determined each level of sample 11 times under repeatability conditions. The statistical data of the determination results are shown in Table A.1. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 11064.1-2024 be delivered?Answer: The full copy PDF of English version of GB/T 11064.1-2024 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 11064.1-2024_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 11064.1-2024_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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