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GB/T 641-2011: Chemical reagent -- Potassium peroxydisulfate
Status: Valid GB/T 641: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 641-2011 | English | 139 |
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Chemical reagent -- Potassium peroxydisulfate
| Valid |
GB/T 641-2011
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| GB/T 641-1994 | English | 239 |
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Chemical reagent. Potassium peroxydisulfate
| Obsolete |
GB/T 641-1994
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| GB 641-1978 | English | 199 |
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Chemical reagents--Potassium persulfate
| Obsolete |
GB 641-1978
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PDF similar to GB/T 641-2011
Basic data | Standard ID | GB/T 641-2011 (GB/T641-2011) | | Description (Translated English) | Chemical reagent -- Potassium peroxydisulfate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G62 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 6,658 | | Date of Issue | 2011-05-12 | | Date of Implementation | 2011-12-01 | | Older Standard (superseded by this standard) | GB/T 641-1994 | | Quoted Standard | GB/T 601; GB/T 602; GB/T 603; GB/T 609; GB/T 6682; GB/T 9729; GB/T 9735; GB/T 9738; GB/T 9739; GB 15258; GB 15346; HG/T 3484; HG/T 3921 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 6 of 2011 | | 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 chemical reagent potassium persulfate traits, specifications, testing, inspection and marking and packaging rules. This standard applies to chemical reagent potassium persulfate test. | GB/T 641-2011: Chemical reagent -- Potassium peroxydisulfate---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.
Chemical reagent. Potassium peroxydisulfate
ICS 71.040.30
G62
National Standards of People's Republic of China
Replacing GB/T 641-1994
Chemical Reagents
Potassium peroxydisulfate (persulfate)
Issued on. 2011-05-12
2011-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 641-1994 "chemical reagents potassium persulfate," compared with the GB/T 641-1994 main changes are as follows.
--- Clarity test specifications by a "qualified" to "3", "5" (1994 version 3.2, this version of Chapter 4);
--- Chemical reagents common method of water-insoluble substance use (1994 version 4.2.2, this version 5.4);
--- Determination of heavy metals increased sodium sulfide - Glycerin colorimetry (1994 version 4.2.7, this version 5.9);
--- Modify the packaging and logo (1994 edition, Chapter 6, Section 7 of this edition).
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee Chemistry Chemicals Branch (SAC/TC63/SC3) centralized.
This standard was drafted. Shanghai Institute of chemical reagents.
The main drafters of this standard. Suiqi Ying, Sheng Xiaohua.
This standard replaces the standards previously issued as follows.
--- GB/T 641-1965, GB/T 641-1978, GB/T 641-1994.
Chemical Reagents
Potassium peroxydisulfate (persulfate)
Warning. some of the test procedure specified in this standard can lead to dangerous situations, the user has the responsibility to take appropriate safety and health practices.
Molecular formula. K2S2O8
Molecular weight. 270.32 (according to 2007 international relative atomic mass)
1 Scope
This standard specifies the chemical reagents potassium persulfate traits, specifications, testing, packaging and inspection rules and signs.
This standard applies to potassium persulfate test chemical reagent.
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.
Preparation of GB/T 601 chemical reagent standard titration solution
GB/T 602 Determination of impurities in chemical reagents prepared standard solution (GB/T 602-2002, ISO 6353-1. 1982, NEQ) with
GB/T 603 chemical reagent in test methods - Preparations with (GB/T 603-2002, ISO 6353-1. 1982, NEQ)
GB/T 609 chemical reagent - General method for determination of total nitrogen (GB/T 609-2006, ISO 6353-1. 1982, NEQ)
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
GB/T 9729 General method for determination of chloride Chemicals (GB/T 9729-2007, ISO 6353-1. 1982, NEQ)
GB/T 9735 General method for determination of heavy metals Chemicals (GB/T 9735-2008, ISO 6353-1. 1982, NEQ)
GB/T 9738 Determination of water insoluble chemical reagent - General method (GB/T 9738-2008, ISO 6353-1. 1982, NEQ)
GB/T 9739 General method for determination of iron chemical reagents (GB/T 9739-2006, ISO 6353-1. 1982, NEQ)
GB 15258 rules for preparation of chemical safety labels
GB 15346 chemical reagent packaging and marking
HG/T 3484 standard chemical reagents glass emulsion and clarity standards
HG/T 3921 Chemicals sampling and acceptance rules
3 Characters
This reagent is a colorless or white crystalline powder, soluble in water. In case of wet gradually decompose and release oxygen.
4 Specification
Potassium peroxydisulfate specifications shown in Table 1.
Table 1
Name AR chemically pure
Content (K2S2O8), w /% ≥99.5 ≥99.0
Clarity test/number ≤3 ≤5
Water-insoluble, w /% ≤0.005 ≤0.01
Chloride and chlorate (as Cl dollars), w /% ≤0.002 ≤0.005
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