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XB/T 221-2022: (Ammonium cerium nitrate)
Status: Valid XB/T 221: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| XB/T 221-2022 | English | 499 |
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(Ammonium cerium nitrate)
| Valid |
XB/T 221-2022
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| XB/T 221-2008 | English | 279 |
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Cerium ammonium nitrate
| Obsolete |
XB/T 221-2008
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PDF similar to XB/T 221-2022
Basic data | Standard ID | XB/T 221-2022 (XB/T221-2022) | | Description (Translated English) | (Ammonium cerium nitrate) | | Sector / Industry | Rare Earth Metal Industry Standard (Recommended) | | Classification of Chinese Standard | H65 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 22,277 | | Date of Issue | 2022-09-30 | | Date of Implementation | 2023-04-01 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the classification, technical requirements, test methods, inspection rules, signs, packaging, transportation, storage and accompanying documents of ammonium cerium nitrate. This standard applies to ammonium cerium nitrate obtained by chemical synthesis, concentrated crystallization, using cerium carbonate or cerium nitrate, hydrogen peroxide, nitric acid, ammonia water, and ammonium nitrate as main raw materials. It is mainly used as catalyst for automobile exhaust treatment, catalyst for organic volatile gas treatment, oxidant and catalyst for organic synthesis, etchant in the field of electronic technology, high-end polishing powder and other products. | XB/T 221-2008: Cerium ammonium nitrate---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.
Cerium ammonium nitrate
Book People's Republic of China Rare Earth Industry Standard
XB/T 221-2008
Cerium Ammonium Nitrate
2008-02-01 released
Implementation of.2008-07-01
Issued by the National Development and Reform Commission of the People's Republic of China
Foreword
This standard was proposed and managed by the National Rare Earth Standardization Technical Committee.
This standard was drafted by Inner Mongolia Baotou Steel Rare Earth High-Tech Co., Ltd.
This standard was drafted by Jiangxi Golden Century New Materials Co., Ltd.
The main drafters of this standard. Li Dong, Wang Jing, Zhao Zhihua, Liu Hengchang, Rao Yong.
XB/T 221-2008
Cerium Ammonium Nitrate
1 scope
This standard specifies the requirements, test methods, inspection rules and packaging, marking, transportation and storage of cerium ammonium nitrate.
This standard applies to cerium ammonium nitrate prepared by chemical methods using pure cerium compound products as raw materials. Mainly used as a thin film transistor backlight
Etchant, used in the electronics industry.
2 Normative references
The clauses in the following documents become clauses of this standard after being quoted. For dated reference documents, all subsequent
Amendments (not including errata content) or revisions do not apply to this standard. However, all parties that have reached an agreement based on this standard are encouraged to study
Is the latest version of these files available? For undated references, the latest version is applicable to this standard.
GB/T 8170 Numerical rounding rules
GB/T 12690 (all parts) Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides
GB/T 143635.1 Methods for chemical analysis of rare earth metals and their compounds. Oxalate gravimetric method for the determination of total rare earths
GB/T 18115.2 Methods for chemical analysis of rare earth impurities in rare earth metals and their oxides lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium,
Determination of terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium
3 requirements
3.1 Chemical composition
The product brand and chemical composition should meet the requirements of Table 1.If the buyer has special requirements, the supplier and the buyer can negotiate separately.
Table 1
product
Grade
Chemical composition (mass fraction)/%
REO
not less than
CeO2/REO
not less than
Rare earth impurities/REO, not more than non-rare earth impurities, not more than
La2O3 Pr6O11 Nd2O3 Sm2O3 Y2O3 SO2-4 Cl-SiO2
023131A 31 99.99 0.0030 0.0010 0.0010 0.0010 0.0010 0.0025 0.0010 0.0001
0231331B 31 999.9 0.0050 0.0010 0.0020 0.0010 0.0010 0.0050 0.0010 0.0005
product
Grade
Chemical composition (mass fraction)/%
REO
not less than
CeO2/REO
not less than
Non-rare earth impurities, not more than
Fe2O3 CaO Na2O K2O PbO CoO CuO NiO Cr2O3
023131A 31 99.99 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001
023131B 31 99.9 0.0003 0.0010 0.0003 0.0002 0.0003 0.0003 0.0001 0.0003 0.0001
XB/T 221-2008
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