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GB/T 667-2023: Chemical reagent - Zinc nitrate hexahydrate
Status: Valid GB/T 667: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 667-2023 | English | 189 |
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Chemical reagent - Zinc nitrate hexahydrate
| Valid |
GB/T 667-2023
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| GB/T 667-1995 | English | 239 |
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Chemical reagent. Zinc nitrate hexahydrate
| Obsolete |
GB/T 667-1995
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| GB 667-1978 | English | RFQ |
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Chemical reagents--Zinc nitrate
| Obsolete |
GB 667-1978
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PDF similar to GB/T 667-2023
Basic data | Standard ID | GB/T 667-2023 (GB/T667-2023) | | Description (Translated English) | Chemical reagent - Zinc nitrate hexahydrate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G62 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 10,144 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Older Standard (superseded by this standard) | GB/T 667-1995 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 667-2023: Chemical reagent - Zinc nitrate hexahydrate---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.
ICS 71.040.30
CCSG62
National Standards of People's Republic of China
Replace GB/T 667-1995
Chemical reagent zinc nitrate hexahydrate (zinc nitrate)
Published on 2023-08-06
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 667-1995 "Chemical Reagent Zinc Nitrate Hexahydrate (Zinc Nitrate)". Compared with GB/T 667-1995, except
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
---The technical requirements and determination methods of zinc nitrate hexahydrate have been changed, and the technical requirements for analytical purity have been adjusted from "≥99.0%" to "99.0%~
101.0%"; chemical purity technical requirements are adjusted from "≥98.0%" to "98.0%~102.0%" (see Chapter 5, 6.2,.1995 edition
3.1, 4.1);
---The technical requirements for the clarity test have been changed, from "qualified" to "≤No. 2" and "≤No. 4" (see Chapter 5,.1995 edition
3.3);
---The technical requirements for chemical purity of lead have been changed from "≤0.02%" to "≤0.01%" (see Chapter 5, 3.3 of the.1995 edition);
---Added technical requirements and determination methods for sodium, magnesium, potassium, calcium, nickel and copper (see Chapter 5, 6.8);
---Added the measurement method of inductively coupled plasma atomic emission spectrometry for lead and iron (see 6.8.2, 6.9.1);
---Changed the inspection rules (see Chapter 7, Chapter 5 of the.1995 edition);
---Changed the packaging and logo (see Chapter 8, Chapter 6 of the.1995 edition);
---Deleted the technical requirements and measurement methods for ammonium sulfide non-precipitate (calculated as sulfate) (see 3.3 and 4.3.7 of the.1995 edition).
Please note that some content in this document may be subject to patents. The publisher 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 Chemical Reagents Sub-Technical Committee of the National Chemical Standardization Technical Committee (SAC/TC63/SC3).
This document was drafted by. Xilong Science Co., Ltd., Beijing Institute of Chemical Reagents Co., Ltd.
The main drafters of this document. Yang Peidian, Lin Xiuzhen, Yuan Lina, Wang Yuhua, Zhao Jifei, Han Baoying, She Lajiao, Ma Linghua, Wang Lianwang,
Meng Xiandong.
This document was first published in 1965, revised for the first time in 1978, revised for the second time in.1995, and this is the third revision.
Chemical reagent zinc nitrate hexahydrate (zinc nitrate)
Warning. Some test procedures specified in this document may lead to hazardous situations, and the user is responsible for taking appropriate safety and health measures.
1 Scope
This document specifies the properties, technical requirements, test methods, inspection rules and packaging of the chemical reagent zinc nitrate hexahydrate (zinc nitrate).
logo.
This document applies to the inspection of the chemical reagent zinc nitrate hexahydrate (zinc nitrate).
Note. The molecular formula of the chemical reagent zinc nitrate hexahydrate (zinc nitrate) is Zn(NO3)2·6H2O, and the relative molecular mass is 297.48 (according to the 2022 international relative
Atomic mass), CAS number is 10196-18-6.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 601 Preparation of chemical reagent standard titration solution
GB/T 602 Preparation of standard solutions for determination of impurities in chemical reagents
GB/T 603 Preparation of preparations and products used in chemical reagent test methods
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 9723-2007 General principles for flame atomic absorption spectrometry of chemical reagents
GB/T 9724 General principles for determination of pH value of chemical reagents
GB/T 9728 General method for determination of chemical reagent sulfate
GB/T 9729 General method for determination of chemical reagent chloride
GB/T 9738 General method for determination of water-insoluble matter in chemical reagents
GB 15258 Regulations on Preparing Chemical Safety Labels
GB 15346 Chemical reagent packaging and marking
GB/T 23942-2009 General principles for inductively coupled plasma atomic emission spectrometry of chemical reagents
HG/T 3484-1999 Chemical reagent standard glass emulsion and clarity standard
HG/T 3921 Chemical reagent sampling and acceptance rules
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 traits
Zinc nitrate hexahydrate (zinc nitrate) is white crystal, easily soluble in water and ethanol.
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