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GB/T 23959-2009: Hydroquinone for industrial use
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23959-2009 | English | 279 |
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Hydroquinone for industrial use
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GB/T 23959-2009
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Basic data | Standard ID | GB/T 23959-2009 (GB/T23959-2009) | | Description (Translated English) | Hydroquinone for industrial use | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G17 | | Classification of International Standard | 71.080.90 | | Word Count Estimation | 12,169 | | Date of Issue | 2009-06-02 | | Date of Implementation | 2010-02-01 | | Quoted Standard | GB 190; GB/T 601-2002; GB/T 602-2002; GB/T 603-2002; GB/T 617-2006; GB/T 1250; GB/T 6678-2003; GB/T 6679-2003; GB/T 6682-2008 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.8 (Total No.148) | | 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 industrial use of hydroquinone technical requirements, test methods, inspection rules and signs, packaging, transported material, storage and security. This standard applies to law or aniline hydroxylation of phenol method were used for the industrial production of diphenols stupid, inspection and sales. | GB/T 23959-2009: Hydroquinone for industrial use---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.
Hydroquinone for industrial use
ICS 71.080.90
G17
National Standards of People's Republic of China
Industrial hydroquinone
Posted 2009-06-02
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Appendix A of this standard is a normative appendix.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee branch of organic chemistry (SAC/TC63/SC2) centralized.
This standard was drafted. Chemical Industry Co., Ltd. Lianyungang Sanjili.
Participated in the drafting of this standard. Yancheng Fengyang Chemical Co., Ltd., Zhenjiang Rhodia Chemicals Limited.
The main drafters of this standard. Liu marked, Chensu Qing, Xu Juan, Wang Hengqi.
Industrial hydroquinone
1 Scope
This standard specifies the industrial use of hydroquinone technical requirements, test methods, inspection rules and signs, packaging, transportation, storage, and security.
This standard applies to phenol hydroxylation law or legal system of industrial aniline hydroquinone production, testing and marketing.
Molecular formula. C6H6O2
Structure. handkerchief handkerchief handkerchief
Division division division
division division division
OH
OH
Molecular weight. 110.11 (according to 2007 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
Preparation of GB/T 601-2002 Chemical Reagent standard titration solution
GB/T 602-2002 Chemical Reagent preparation impurity standard solution was determined by (ISO 6353-1. 1982, NEQ)
GB/T 603-2002 Chemical Reagent Test Methods Preparations with (ISO 6353-1. 1982, NEQ)
GB/T 617-2006 Chemical Reagent melting range determination General Method
Representation GB/T 1250 limit values \u200b\u200band the method of determining
GB/T 6678-2003 General Principles for Sampling Chemical Products
GB/T 6679-2003 General rules for sampling solid chemical products
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
3 Requirements
3.1 Appearance. excellent product is white or nearly white solid, qualified as a white or light-colored solid.
3.2 Industrial hydroquinone should meet the technical requirements in Table 1 below.
Table 1 Technical Requirements
project
index
Excellence Qualified
Hydroquinone, w1/99.0 to 100.5%
Catechol, w1 /% ≤ 0.05
Final melting point/℃ 171 ~ 175
Residue on ignition, w1 /% ≤ 0.10 0.30
Heavy metals (Pb), w1 /% ≤ 0.002 -
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