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GB/T 21886-2008: 2, 4-Dinitrophenol
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21886-2008 | English | 189 |
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2, 4-Dinitrophenol
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GB/T 21886-2008
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Basic data | Standard ID | GB/T 21886-2008 (GB/T21886-2008) | | Description (Translated English) | 2, 4-Dinitrophenol | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G56 | | Classification of International Standard | 71.100.01; 87.060.10 | | Word Count Estimation | 8,889 | | Date of Issue | 2008-05-15 | | Date of Implementation | 2008-11-01 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.8 (Total No.121) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the 2, 4-dinitrophenol requirements, sampling, test methods, inspection rules, signs, labels, packaging, transport, storage and security, safety data sheet. This standard applies to 2, 4-dinitrophenol product quality control, the products are mainly used in the production of picric acid and coating intermediates. | GB/T 21886-2008: 2, 4-Dinitrophenol---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.
2, 4-Dinitrophenol
ICS 71.100.01; 87.060.10
G56
National Standards of People's Republic of China
2,4-dinitrophenol
Posted 2008-05-15
2008-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee Dye (SAC/TC134) centralized.
This standard was drafted. Dalian dye Chemical Co., Ltd., Henan Luoran Co., Ltd., Shenyang Chemical Research Institute.
The main drafters of this standard. bumper, quarter-ho, Deng Hongbo, Zhao Min, a new horse.
2,4-dinitrophenol
Warning --- personnel should use this standard regular laboratory work experience. This standard does not point out all possible security asked
question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This standard specifies requirements for 2,4-dinitrophenol, sampling, test methods, inspection rules, marking, labeling, packaging, transportation and storage in order to
And safety, safety data sheet.
This standard applies to product quality control 2,4-dinitrophenol, which is mainly used for the production of picric acid and intermediate coatings.
Structure.
Molecular formula. C6H4N2O5
Molecular weight. 184.11 (according to 2005 international relative atomic mass)
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB 190 packaging and marking of dangerous goods
GB/T 191 Packaging - Pictorial signs (GB/T 191-2008, ISO 780.1997, MOD)
Representation GB/T 1250-1989 and method of determining the limit values
General method for determination of GB/T 2385-2006 dye intermediates crystallization point
Determination of GB/T 2386-2006 dyes and dye intermediates moisture
GB/T 6678-2003 General Principles for Sampling Chemical Products
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
GB/T 9722 General chemical reagent gas chromatography
GB 12268-2005 of dangerous goods
3 Requirements
2,4-dinitrophenol quality should meet the requirements in Table 1.
Table 1 2,4-dinitrophenol quality requirements
Item Index
1. Appearance yellow to dark yellow powder or granules
2.2,4- dinitrophenol purity /% ≥ 97.0
3. Low boiling content /% ≤ 0.5
4.2,6- dinitrophenol content /% ≤ 2.5
5. Dry goods crystallization point/℃ ≥ 108.0
6. Heating loss mass fraction /% ≥ 10.0 ~ 16.0
7. Aqueous solution pH of 4.0 to 5.0
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