GB/T 23965-2023Monoisopropylamine for industrial use (English PDF)

Foreword

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

This document replaces GB/T 23965-2009 "Isopropylamine for Industrial Use". Compared with GB/T 23965-2009, except for structural adjustment and compilation In addition to editorial changes, the main technical changes are as follows.

---Delete the qualified product indicators of two types of products. monoisopropylamine (anhydrous) and monoisopropylamine (70% aqueous solution), and cancel the product grade (see Table 1 of the 2009 edition);

---"Monoisopropylamine" in monoisopropylamine (anhydrous) products was changed from ">=99.5%" (excellent product) to ">=99.7%"; monoisopropylamine (70% "Diisopropylamine" and "isopropyl alcohol" in aqueous solution) products were changed from "<=0.1%" (high-quality products) to "<=0.07%" (see Table 1, Table 1 of the 2009 edition);

---Changed the determination method of total alkalinity (see 6.4, 5.5.2 of the 2009 edition);

---Changed the ammonia measurement injection volume and calculation formula (see Table 2 and 6.6.6, 2009 version of Table 2 and 5.7.6);

---Changed the method for determination of moisture in isopropylamine (anhydrous) (see 6.7, 5.8 of the 2009 edition);

---The "Safety" part has been adjusted to an informative appendix (see Appendix B, Chapter 8 of the 2009 edition).

1 Scope

This document specifies the classification and nomenclature, requirements, test methods, inspection rules and marking, packaging, transportation and storage of monoisopropylamine for industrial use.

This document applies to industrial mono-isopropylamine produced by catalytic amination using isopropyl alcohol or acetone as raw material in the presence of hydrogen.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB 190 Dangerous goods packaging markings

GB/T 601 Preparation of chemical reagent standard titration solution

GB/T 603 Preparation of preparations and products used in chemical reagent test methods

GB/T 3143 Liquid chemical product color determination method (Hazen unit---platinum-cobalt color number)

GB/T 6283 Determination of moisture content in chemical products Karl Fischer method (general method)

GB/T 6324.8 Test methods for organic chemical products Part 8: Determination of moisture content of liquid products by Karl Fischer coulombometry

GB/T 6678 General principles for sampling of chemical products

GB/T 6680 General rules for sampling of liquid chemical products

GB/T 6682 Specifications and test methods for water used in analytical laboratories

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

GB/T 9722 General rules for gas chromatography with chemical reagents

GB/T 23961 Determination of low-carbon fatty amine content by gas chromatography

3 Terms and definitions

There are no terms or definitions to be defined in this document.

4 Classification and naming

Industrial monoisopropylamine is divided into monoisopropylamine (anhydrous) and monoisopropylamine (70% aqueous solution) according to the water content of the product.

5 Requirements

5.1 Appearance. Transparent liquid, no visible mechanical impurities.