GB/T 665-2007 English PDF

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GB/T 665-2007: Chemical reagent -- Copper (Ⅱ) sulfate pentahydrate
Status: Valid

GB/T 665: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 665-2007	189	Add to Cart	3 days	Chemical reagent -- Copper (Ⅱ) sulfate pentahydrate	Valid
GB/T 665-1988	199	Add to Cart	2 days	Chemical reagent--Copper (2) sulfate pentahydrate	Obsolete

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Basic data

Standard ID: GB/T 665-2007 (GB/T665-2007)
Description (Translated English): Chemical reagent -- Copper (��) sulfate pentahydrate
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G62
Classification of International Standard: 71.040.30
Word Count Estimation: 7,789
Date of Issue: 2007-09-26
Date of Implementation: 2008-04-01
Older Standard (superseded by this standard): GB/T 665-1988
Quoted Standard: GB/T 601; GB/T 602; GB/T 603; GB/T 6682; GB/T 9723-2007; GB/T 9738; GB 15258; GB 15346; HG/T 3921
Adopted Standard: ISO 6353-2-1983, NEQ
Regulation (derived from): China National Standard Approval Announcement2007 No.11 (Total No.111)
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 reagents-copper sulfate pentahydrate traits, specifications, trial, packaging and inspection rules and signs. This standard applies to chemicals-copper sulfate pentahydrate test.

GB/T 665-2007: Chemical reagent -- Copper (Ⅱ) sulfate pentahydrate

---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. Copper (Ⅱ) sulfate pentahydrate ICS 71.040.30 G62 National Standards of People's Republic of China Replacing GB/T 665-1988 Chemical Reagents Pentahydrate (Ⅱ) (copper sulfate) (ISO 6353-2. 1983, Reagentsforchemicalanalysis- Part 2. Specifications-Firstseries, NEQ) Posted 2007-09-26 2008-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard and ISO 6353-2. 1983 "Reagents for chemical analysis - Part 2. Specification 1 of this series," The R9 "copper sulfate pentahydrate (Ⅱ) "non-equivalent degree of consistency. This standard replaces GB/T 665-1988 "copper sulfate chemical reagents," compared with the GB/T 665-1988 main changes are as follows. --- Name to "pentahydrate (Ⅱ) (copper sulfate)"; --- Increased traits (Chapter 3 of this edition); --- Improved content, sodium, potassium, iron, nickel, zinc determination method (the 1988 edition of 4.1,4.2.4,4.2.5,4.2.6,4.2.7 , 4.2.8, this Version 5.2,5.6,5.7,5.8,5.9,5.10). 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. Beijing Yili Fine Chemicals Co., Ltd. The main drafters of this standard. Zhao Yufeng, Bi Yongping. This standard was first published in 1965, in 1978 and first revised in 1988, the second amendment. Chemical Reagents Pentahydrate (Ⅱ) (copper sulfate) 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. CuSO4 · 5H2O Molecular weight. 249.69 (according to 2003 international relative atomic mass)

1 Scope

This standard specifies the chemical reagents --- pentahydrate traits, specifications, testing, inspection rules, packaging and marking. This standard applies to chemical agents --- pentahydrate test.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms of dated references, all subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to study under this agreement is standard 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 test method Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987) GB/T 9723-2007 Chemicals flame atomic absorption spectrometry General GB/T 9738 Determination of water insoluble chemical reagent - General method (GB/T 9738-1988, eqv ISO 6353-1. 1982) GB 15258 rules for preparation of chemical safety labels GB 15346 chemical reagent packaging and marking HG/T 3921 Chemicals sampling and acceptance rules

3 Characters

The reagent is blue crystal, weathering in dry air, soluble in water, practically insoluble in alcohol.

4 Specification

Pentahydrate specifications shown in Table 1. Table 1 specifications of copper sulfate pentahydrate Name AR chemically pure Content (CuSO4 · 5H2O), /% ≥99.0 ≥99.0 Water-insoluble, /% ≤0.005 ≤0.01 Chloride (Cl), /% ≤0.001 ≤0.002 Total nitrogen (N), /% ≤0.001 ≤0.003 Sodium (Na), /% ≤0.005 ≤0.015 Potassium (K), /% ≤0.001 ≤0.004 ......

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