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GB/T 26523-2022 English PDF (GB/T 26523-2011)

GB/T 26523-2022_English: PDF (GB/T26523-2022)
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GB/T 26523-2022English349 Add to Cart 4 days [Need to translate] Refined cobaltous sulfates Valid GB/T 26523-2022
GB/T 26523-2011English225 Add to Cart 0--9 seconds. Auto-delivery Refined cobaltous sulfates Obsolete GB/T 26523-2011


BASIC DATA
Standard ID GB/T 26523-2022 (GB/T26523-2022)
Description (Translated English) Refined cobaltous sulfates
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G12
Classification of International Standard 71.060.50
Word Count Estimation 17,156
Date of Issue 2022-04-15
Date of Implementation 2022-11-01
Drafting Organization GEM Co., Ltd., Zhejiang Huayou Cobalt Co., Ltd., Guangdong Bangpu Recycling Technology Co., Ltd., GEM (Jiangsu) Cobalt Co., Ltd., Guangdong Jiana Energy Technology Co., Ltd., Jingmen GEM New Materials Co., Ltd., Jilin Ji En Nickel Industry Co., Ltd., Qingyuan Jiazhi New Materials Research Institute Co., Ltd., CNOOC Tianjin Chemical Research and Design Institute Co., Ltd.
Administrative Organization National Chemical Standardization Technical Committee (SAC/TC 63)
Proposing organization China Petroleum and Chemical Industry Federation
Issuing agency(ies) State Administration for Market Regulation, National Standardization Administration

BASIC DATA
Standard ID GB/T 26523-2011 (GB/T26523-2011)
Description (Translated English) Refined cobaltous sulfates
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G12
Classification of International Standard 71.060.50
Word Count Estimation 18,183
Date of Issue 2011-05-12
Date of Implementation 2011-12-01
Quoted Standard GB/T 191-2008; GB/T 3049-2006; GB/T 6678; GB/T 6682-2008; GB/T 8170; GB/T 9724-2007; GB/T 16488-1996; HG/T 3696.1; HG/T 3696.2; HG/T 3696.3
Drafting Organization Jinchuan Group Ltd.
Administrative Organization National Standardization Technical Committee chemistry Inorganic Chemicals Branch
Regulation (derived from) Announcement of Newly Approved National Standards No. 6 of 2011
Proposing organization China Petroleum and Chemical Industry Federation
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies the requirements of refined cobalt sulfate, test methods, inspection rules, marking, labeling, packaging, transportation and storage. This standard applies mainly used in chemical industry, electroplating industry, battery industry, chemical reagents and other sectors of refined cobalt sulfate.


GB/T 26523-2022 Refined cobaltous sulfates ICS 71.060.50 CCSG12 National Standards of People's Republic of China Replacing GB/T 26523-2011 Refined cobalt sulfate Published on 2022-04-15 2022-11-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration foreword This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document replaces GB/T 26523-2011 "Refined Cobalt Sulfate". Compared with GB/T 26523-2011, except for structural adjustment and editorial In addition to the changes, the main technical changes are as follows. ---Changed nickel content, zinc content, copper content, cadmium content, manganese content, calcium content, magnesium content, iron content, chromium content, lead content, arsenic content indicators of quantity and oil content (see 5.2, 4.2 of the.2011 edition); --- Increased the indicators of sodium content, aluminum content, silicon content, lithium content and magnetic foreign matter content (see 5.2); --- Increased the determination of cobalt content by potentiometric titration (see 6.3.1); --- Change the determination method of nickel, zinc, copper, cadmium, manganese, calcium, magnesium, iron, chromium (see 6.4, 5.5, 5.6, 5.7, 5.8 of the.2011 edition); --- Increased the determination methods of aluminum content, silicon content and lithium content (see 6.4); --- Increased the determination method of sodium content (see 6.6); --- Increased the determination method of magnetic foreign matter content (see 6.11); --- Deleted the indicators and measurement methods of mercury (see 4.2 and 5.9 of the.2011 edition); --- Deleted the indicators and measurement methods of pH (see 4.2 and 5.14 of the.2011 edition). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Chemical Standardization Technical Committee (SAC/TC63). This document is drafted by. GEM Co., Ltd., Zhejiang Huayou Cobalt Co., Ltd., Guangdong Bangpu Recycling Technology Co., Ltd., GEM (Jiangsu) Cobalt Industry Co., Ltd., Guangdong Jiana Energy Technology Co., Ltd., Jingmen GEM New Materials Co., Ltd., Jilin Ji En Nickel Industry Co., Ltd., Qingyuan Jiazhi New Materials Research Institute Co., Ltd., CNOOC Tianjin Chemical Research and Design Institute Co., Ltd. The main drafters of this document. Wei Qiong, Chen Xuehua, Yu Haijun, Zhang Aiqing, Zhang Chen, Yang Yang, Meng Qingwei, Fu Haikuo, Xu Kaihua, Lei Yangui, Zhang Xuemei, Ye Shengyi, Feng Huancun, Hu Yi, Zhang Yunhe, Xie Baihua, Zhou You, Wang Pei, Chen Ting, Wang Ying. This document was first published in.2011 and this is the first revision. Refined cobalt sulfate Warning---This product is listed in the "Catalogue of Hazardous Chemicals" (2015 edition), which is a hazardous chemical, and should be handled with caution. use Personnel for this document should have practical experience in formal laboratory work. This document does not address all possible security issues. User is responsible Take appropriate safety and health measures, and ensure compliance with the conditions stipulated by relevant national regulations. Some reagents used in the test method It is corrosive. If it splashes on the skin or eyes, it should be washed with water immediately. In severe cases, seek medical attention immediately. 1 Scope This document specifies the requirements, test methods, inspection rules, marking, labeling, packaging, transportation and storage for refined cobalt sulfate. This document applies to refined cobalt sulfate. Note. This product is mainly used in battery industry, electronics industry, chemical industry, electroplating industry, chemical reagents and other industries. 2 Normative references The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 191-2008 Graphical signs of packaging, storage and transportation GB/T 6678 General Rules for Sampling of Chemical Products GB/T 6682-2008 Specifications and test methods for water used in analytical laboratories GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values HG/T 3696.1 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products - Part 1.Standard titration solution liquid preparation HG/T 3696.2 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products - Part 2.Standard solutions for impurities liquid preparation HG/T 3696.3 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products - Part 3.Preparations and products preparation 3 Terms and Definitions There are no terms and definitions that need to be defined in this document. 4 Molecular formula and relative molecular mass Molecular formula. CoSO4 7H2O Relative molecular mass. 281.11 (according to.2018 international relative atomic mass) ......


GB/T 26523-2011 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 71.060.50 G 12 Refined cobaltous sulfates 精制硫酸钴 ISSUED ON: MAY 12, 2011 IMPLEMENTED ON: DECEMBER 01, 2011 Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the People’s Republic of China. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative references ... 4  3 Molecular formula and relative molecular mass ... 5  4 Requirements ... 5  5 Test method ... 5  6 Inspection rules ... 24  7 Marking, labeling ... 25  8 Packaging, transportation, storage ... 25  Appendix A (Informative) Method for processing mercury waste liquid ... 26  Refined cobaltous sulfates 1 Scope This Standard specifies the requirements, test methods, inspection rules, marking, labeling, packaging, transportation and storage of refined cobaltous sulfates. This Standard applies to refined cobaltous sulfates that are mainly used in industries such as chemical industry, electroplating industry, battery industry, chemical reagents. 2 Normative references The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document. GB/T 191-2008, Packaging - Pictorial marking for handling of goods GB/T 3049-2006, Chemical products for industrial use - General method for determination of iron content - 1,10-Phenanthroline spectrophotometric method GB/T 6678, General principles for sampling chemical products GB/T 6682-2008, Water for analytical laboratory use - Specification and test methods GB/T 8170, Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 9724-2007, Chemical reagent - General rule for the determination of pH GB/T 16488-1996, Water quality - Determination of petroleum oil, animal and vegetable oils - Infrared photometric method HG/T 3696.1, Inorganic chemical products - Preparations of standard volumetric solutions for chemical analysis HG/T 3696.2, Inorganic chemical products - Preparations of standard solutions for chemical analysis immediately with water. In severe cases, treat immediately. When flammable products are used, it is strictly forbidden to use an open flame for heating. 5.2 General provisions The reagents and water that are used in this Standard, when no other requirements are specified, refer to analytical reagents and grade-III water which is specified in GB/T 6682-2008. All the reagents and water that are used in the atomic absorption method in the Standard refer to the guaranteed reagents and the grade-II water that is specified in GB/T 6682-2008. The standard titration solutions, impurity standard solutions, preparations and products that are used in the test shall be prepared in accordance with the provisions of HG/T 3696.1, HG/T 3696.2, HG/T 3696.3 when no other requirements are specified. 5.3 Appearance inspection Under natural light, visually judge the appearance. 5.4 Determination of cobalt content 5.4.1 Method summary In an acid solution, add hydroxylamine hydrochloride to the test solution to reduce the iron; cobalt and thiocyanate form cobalt thiocyanate [Co(SCN)4]2- blue complex; in the presence of acetone, use Ethylene Diamine Tetraacetic Acid (EDTA) standard titration solution and cobalt to form a complex; when it reaches the end point, the blue color disappears. 5.4.2 Reagents 5.4.2.1 Hydroxylamine hydrochloride. 5.4.2.2 Ammonium thiocyanate. 5.4.2.3 Acetone. 5.4.2.4 Saturated ammonium acetate solution. 5.4.2.5 Ethylene Diamine Tetraacetic Acid standard titration solution: c(EDTA) ≈ 0.05 mol/L. 5.4.3 Analysis steps Weigh about 0.35 g ~ 0.40 g of sample, accurate to 0.000 2 g; put in 250 mL conical flask; add 50 mL of water, 0.25 g of hydroxylamine hydrochloride; add 10 g of ammonium thiocyanate; add 4 mL of saturated ammonium acetate 5.5.2.3 Zinc standard solution: 1 mL of solution contains 0.01 mg of zinc (Zn). Pipette 1 mL of the zinc standard solution that is prepared according to HG/T 3696.2; place it in a 100 mL volumetric flask; use water to dilute to the mark; shake well. 5.5.2.4 Iron standard solution: 1 mL of solution contains 0.1 mg of iron (Fe). Pipette 10 mL of the iron standard solution that is prepared according to HG/T 3696.2; place it in a 100 mL volumetric flask; use water to dilute to the mark; shake well. 5.5.2.5 Copper standard solution: 1 mL of solution contains 0.1 mg of copper (Cu). Pipette 10 mL of the copper standard solution that is prepared according to HG/T 3696.2; place it in a 100 mL volumetric flask; use water to dilute to the mark; shake well. 5.5.2.6 Lead standard solution: 1 mL of solution contains 0.1 mg of lead (Pb). Pipette 10 mL of the lead standard solution that is prepared according to HG/T 3696.2; place it in a 100 mL volumetric flask; use water to dilute to the mark; shake well. 5.5.2.7 Cadmium standard solution: 1 mL of solution contains 0.01 mg of cadmium (Cd). Pipette 1 mL of the cadmium standard solution that is prepared according to HG/T 3696.2; place it in a 100 mL volumetric flask; use water to dilute to the mark; shake well. 5.5.2.8 Manganese standard solution: 1 mL of solution contains 0.1 mg of manganese (Mn). Pipette 10 mL of the manganese standard solution that is prepared according to HG/T 3696.2; place it in a 100 mL volumetric flask; use water to dilute to the mark; shake well. 5.5.2.9 Acetylene: high purity. 5.5.3 Instruments and apparatuses Atomic absorption spectrophotometer: it is equipped with nickel hollow cathode lamp, zinc hollow cathode lamp, iron hollow cathode lamp, copper hollow cathode lamp, lead hollow cathode lamp, cadmium hollow cathode lamp and manganese hollow cathode lamp. In sulfuric acid solution, use potassium permanganate to oxidize chromium to hexavalent; hexavalent chromium forms a purple complex with diphenylcarbazide in sulfur-phosphorus mixed acid solution; after using isoamyl alcohol for extraction, at a wavelength of 545 nm, use a spectrophotometer to measure its absorbance. 5.8.2 Reagents 5.8.2.1 Sodium nitrite solution. 5.8.2.2 Sulfuric acid solution: 1+2. 5.8.2.3 Phosphoric acid solution: 1+2. 5.8.2.4 Urea solution: 200 g/L. 5.8.2.5 Potassium permanganate solution: 40 g/L. 5.8.2.6 Diphenylcarbazide solution: 1 g/L. Weigh 0.1 g of diphenylcarbazide in 100 mL of acetone that contains 1 mL of sulfuric acid solution (1+9); store in a brown bottle. 5.8.2.7 Isoamyl alcohol. 5.8.2.8 Chromium standard solution: 1 mL of solution contains 0.005 mg of chromium (Cr). Preparation: pipette 1 mL of the chromium standard solution that is prepared according to HG/T 3696.2; place it in a 100 mL volumetric flask; use water to dilute to the mark; shake well. Weigh 50 mL in a 100 mL volumetric flask; use water to dilute to the mark; shake well. Formulate this solution when needed. 5.8.3 Instruments 5.8.3.1 Conical separating funnel: 125 mL. 5.8.3.2 Spectrophotometer: it is equipped with a 1 cm absorption cell. 5.8.4 Analysis steps 5.8.4.1 Preparation of test solution A Weigh about 2 g of the superior product and about 0.5 g of the first-class product, accurate to 0.001 g; put them in a 250 mL beaker; add 40 mL of water to dissolve; add 0.5 mL of sulfuric acid solution; dropwise add potassium permanganate solution until the solution remains purplish red; carefully heat and boil for 3 min. After cooling, add 2 mL of urea solution; shake well; add 5.9 Determination of mercury content 5.9.1 Cold atomic absorption spectrometry (arbitration method) 5.9.1.1 Method summary The sample is dissolved in the acid solution; the contained mercury compound exists in an ionic state; add a reducing agent to reduce it to an atomic state (elemental mercury vapor). Bring out the mercury by the airflow; measure the mercury at a wavelength of 253.7 nm in the quartz tube. The absorption value is proportional to the mercury content in a certain concentration range. Find the mercury content from the working curve. 5.9.1.2 Reagents 5.9.1.2.1 Hydrochloric acid solution: 1+4. 5.9.1.2.2 Stannous chloride hydrochloric acid solution: weigh 25 g of stannous chloride to dissolve in 50 mL of hot concentrated hydrochloric acid; after cooling, move to a 250 mL volumetric flask; use water to dilute to the mark; shake well. 5.9.1.2.3 Iodine solution: 2.5 g/L. 5.9.1.2.4 Stock solution of mercury standard solution: 1 mL of solution contains 0.1 mg of mercury (Hg). Pipette 10 mL of the mercury standard solution that is prepared according to HG/T 3696.2; place it in a 100 mL volumetric flask; dilute to the mark; shake well. 5.9.1.2.5 Mercury standard solution: 1 mL of solution contains 0.001 mg of mercury (Hg). Pipette 1 mL of stock solution of mercury standard solution in a 100 mL volumetric flask; dilute to the mark; shake well. Prepare this solution when used. 5.9.1.3 Instruments and apparatuses 5.9.1.3.1 Atomic absorption spectrophotometer: with low-pressure mercury lamp or hollow cathode lamp. 5.9.1.3.2 Quick response recorder. 5.9.1.4 Analysis steps 5.9.1.4.1 Preparation of test solution Take the arithmetic mean of the parallel determination results as the determination result; the absolute difference between the parallel determination results shall not be larger than 0.000 1%. 5.9.2 Cold atomic fluorescence method 5.9.2.1 Method summary Nitric acid dissolves the sample. In an acid solution, use stannous chloride to reduce divalent mercury ions to mercury atoms; use high-purity argon gas to introduce into an atomic fluorescence absorption cell; use the cold atomic fluorescence method to determine. 5.9.2.2 Reagent Hydrochloric acid solution (5+95) and reagent in 5.9.1.2. 5.9.2.3 Instruments and apparatuses Atomic fluorometer: equipped with high-strength mercury hollow cathode lamp and dual-pump autosampler. 5.9.2.4 Analysis steps 5.9.2.4.1 Drawing of the working curve Successively take 0.00 mL, 2.00 mL, 4.00 mL, 8.00 mL, and 16.00 mL of mercury standard solutions; respectively put them into five 50 mL volumetric flasks; add 5 mL of hydrochloric acid solution (1+1); use water to dilute to the mark; shake well. Respectively take an appropriate amount on the autosampler; adjust the instrument to the best working condition; use hydrochloric acid solution (5+95) as the carrier current; use stannous sulfate hydrochloric acid solution as the reducing solution; measure the fluorescence value. Subtract the fluorescence value of the blank test solution from the fluorescence value of each mercury standard working solution; use the mercury mass as the abscissa and the fluorescence value as the ordinate, to draw the working curve. 5.9.2.4.2 Determination of samples Weigh about 1 g of sample for superior products, about 0.5 g of sample for first- class products, accurate to 0.001 g; place in 100 mL beaker; add water to dissolve; completely transfer to a 50 mL volumetric flask; add 5 mL of hydrochloric acid solution (1+1); use water to dilute to the mark; shake well. Prepare the blank test solution at the same time. Operate the following according to 5.9.2.4.1; measure its fluorescence value. 5.9.2.5 Result calculation 5.11.3.2 Electrothermal constant-temperature drying oven: the controlling temperature is 105 °C ± 2 °C. 5.11.4 Analysis steps Weigh about 20 g of sample to the nearest 0.01 g; place it in a 500 mL beaker. Use 300 mL of water to dissolve; use a glass mortar of constant quality at 105 °C ~ 110 °C to filter; use water to wash until there is no sulfate in the filtrate (use barium chloride solution to check); mix well; dry to constant mass at 105 °C ~ 110 °C. 5.11.5 Result calculation The content of water insoluble matter is calculated by mass fraction w8; the value is expressed in %; it is calculated according to Formula (8): Where: m1 -- the value of the mass of glass mortar, in grams (g); m2 -- the value of the mass of glass mortar and insoluble matter, in grams (g); m -- the value of the mass of the sample, in grams (g). Take the arithmetic mean of the parallel determination results as the determination result; the absolute difference between the two parallel results shall not be larger than 0.002%. 5.12 Determination of chloride content 5.12.1 Method summary Add water; then, heat and boil the sample; after cooling, filter the test solution in a 100 mL volumetric flask; after washing the funnel and insoluble matter, use water to set the volume; transfer an appropriate amount of filtrate to the colorimetric tube; add silver nitrate solution to make it silver chloride turbid liquid; compare with standard turbid solution. 5.12.2 Reagents 5.12.2.1 Nitric acid solution: 1+4. 5.12.2.2 Silver nitrate solution: 0.1 mol/L. 4 -- the upper end of the glass tube; 5 -- glass cap. Figure 1 -- Arsenic measuring device 5.13.4 Analysis steps Weigh 1.00 g ± 0.01 g of sample; add water to dissolve; then, transfer to a 100 mL volumetric flask; dilute to the mark, shake well; then, transfer 10 mL of superior product, 5 mL of first-class product and place in a conical flask or a wide-mouth bottle. Add 75 mL of water; add 5 mL of hydrochloric acid, 1 g of potassium iodide solution, 0.2 mL of stannous chloride solution; shake well; place at room temperature for 10 min. Then, add 2.5 g of arsenic-free metal zinc; immediately plug the arsenic measuring tube that is pre-loaded with lead acetate cotton and mercury bromide test paper; place it in a dark place at about 25 °C for 1 h. Remove the mercury bromide test paper; the color of the arsenic spots shall not be deeper than the standard. Respectively pipette 1 mL and 2.5 mL of arsenic standard solutions; respectively put them in the conical flasks or the wide-mouth bottles; add water to 75 mL; starting from "add 5 mL of hydrochloric acid...", perform the same treatment as the sample. The arsenic spots that are obtained from the superior sample shall not be deeper than the arsenic spots that are produced by 1 mL of arsenic standard solution; the arsenic spots that are obtained from the first-class sample shall not be deeper than the arsenic spots that are produced by 2.5 mL of arsenic standard solution. 5.14 Determination of pH value 5.14.1 Reagents 5.14.1.1 Carbon dioxide-free water. 5.14.1.2 Ethanol solution: 95% neutral solution. 5.14.2 Instruments 5.14.2.1 Acidity meter: the accuracy is 0.02 pH unit. 5.14.2.2 Magnetic stirrer and stir bar. 5.14.3 Analysis steps Weigh 1.00 g ± 0.01 g of sample; place it in a 100 mL beaker; add 5 mL of ethanol to moisten; then, add 100 mL of carbon dioxide-free water; stir to 6.5 Use GB/T 8170 numerical rounding rules and limit values to represent and determine whether the inspection results meet the standards. 7 Marking, labeling 7.1 There shall be a firm and clear mark on the refined cobaltous sulfates packaging, including: the name of the manufacturer, the factory address, the product name, the grade, the net content, the batch number or the date of production, the serial number of this Standard and the sign of "fear of rain" that is specified in GB/T 191-2008. 7.2 Each batch of the delivered refined cobaltous sulfates products shall be accompanied by a quality certificate. The contents include: the name of the manufacturer, the factory address, the product name, the grade, the net content, the batch number or the date of production and the serial number of this Standard. 8 Packaging, transportation, storage 8.1 The refined cobaltous sulfates are packed in plastic woven bags: the inner packaging is a polyethylene plastic film bag; the inner bag is artificially pierced with vinylon rope or other equivalent quality rope, or sealed in other ways equivalent to it; the outer packaging is a plastic woven bag; the outer bag is tightly sealed with vinylon rope or other thread of equivalent quality. Or align the inner and outer bag mouths; fold the seams; secure the seams with vinylon rope or other equivalent threads. When users have special requirements for packaging, they can be negotiated. The net content of each bag is 25 kg. 8.2 The refined cobaltous sulfates shall be covered during transportation to prevent sun, rain and moisture. They must not be transported with poisonous and harmful materials. 8.3 The refined cobaltous sulfates shall be stored in a dry warehouse to prevent rain, moisture, and sunlight. They must not be stored with poisonous and harmful materials. 8.4 Under the packaging, transportation and storage conditions that are stipulated in this Standard, the refined cobaltous sulfates have a shelf life of not less than 2 years from the date of production. ......

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