GB/T 26519.1-2021Persulfate for industrial use—Part 1:Sodium persulfate for industrial use (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document is the first part of GB/T 26519 "Industrial Persulfate". GB/T 26519 has released the following parts.

---Part 1: Industrial sodium persulfate;

---Part 2: Industrial potassium persulfate;

---Part 3: Industrial ammonium persulfate.

This document replaces GB/T 26519.1-2011 "Industrial Persulfate Part 1: Industrial Sodium Persulfate", and GB/T 26519.1- Compared with.2011, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

--- Added warning;

---Added active oxygen index and test data processing (see 5.2, 6.2);

---Changed the index parameters of pH and ammonium salt (see 5.2, 4.2 of the 2011 edition).

Introduction

At present, domestic industrial persulfate products are mainly divided into three types. industrial sodium persulfate, industrial potassium persulfate, and industrial ammonium persulfate. To improve The integrity of the standard system for industrial persulfate products is to integrate the standards to facilitate the implementation of this standard by relevant units.

GB/T 26519 "Industrial Persulfate" is intended to be composed of three parts.

---Part 1: Industrial sodium persulfate;

---Part 2: Industrial potassium persulfate;

---Part 3: Industrial ammonium persulfate.

Industrial persulfate Part 1: Industrial Sodium Persulfate Warning. According to the provisions of Chapter 6 of GB 12268-2012, this product belongs to the 5th item 5.1 oxidizing substance.

Part of the reagents used are corrosive. Care should be taken when handling. If splashed on the skin or eyes, rinse immediately with water. medical. Personnel using this document should have practical experience in formal laboratory work. This document does not point out all possible security issues. use It is the responsibility of the person to take appropriate safety and health measures and to ensure compliance with the conditions stipulated by relevant national laws and regulations.

1 Scope

This document specifies the requirements, test methods, inspection rules, signs, labels, packaging, transportation, and storage of industrial sodium persulfate.

This document applies to industrial sodium persulfate.

Note: This product is mainly used in rubber, plastics, printing and dyeing, electronics, petroleum exploration and reagent industries, and also used as an initiator for emulsion polymerization.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 191-2008 Graphical signs for packaging, storage and transportation

GB/T 6678 General Rules for Sampling of Chemical Products

GB/T 8170 Numerical rounding rules and the expression and determination of limit values

GB/T 23940-2021 Analysis method of industrial persulfate products

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Molecular formula and relative molecular mass

Molecular formula. Na2S2O8 Relative molecular mass. 238.09 (according to 2018 international relative atomic mass)

5 Requirements

5.1 Appearance. white crystal or powder.

5.2 Sodium persulfate for industrial use shall meet the requirements of Table 1 when tested according to the test methods specified in this document.