GB/T 23519-2023Chlorotris(triphenylphosphine) rhodium (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".

This document replaces GB/T 23519-2009 "Triphenylphosphine rhodium chloride". Compared with GB/T 23519-2009, except for structural adjustment and compilation In addition to editorial changes, the main technical changes are as follows:

a) Added labeling of triphenylphosphine rhodium chloride (see Chapter 4);

b) Added the molecular formula and structural formula of triphenylphosphine rhodium chloride (see 4.1);

c) The upper limit of the content of impurity elements Fe, Ni, and Pb has been changed, and the Fe content has been changed from no more than 0.002% to no more than 0.005%;

Change the Pb content from no more than 0.003% to no more than 0.002%; change the Ni content from no more than 0.005% to no more At 0.002% (see 5.1, 3.1.2 of the 2009 edition), the control indicators of impurity elements such as Mg, Zn, Mn are added (see 5.1);

d) Added requirements and test methods for the mass fraction of triphenylphosphine rhodium chloride (see 5.1, 6.1.1 and Appendix A);

e) The solubility test was changed to the mass fraction of toluene-insoluble matter, and the test method was added (see 5.2, 6.2 and Appendix B, 2009 version 3.2, 4.3);

f) The determination method of rhodium mass fraction has been changed, changing "measurement according to YS/T 561" to "measurement according to the provisions of GB/T 34609.1" (See 6.1.2, 4.1 of the 2009 edition);

g) The method for measuring the mass fraction of impurity elements has been changed, changing "measured according to YS/T 363" to "according to the provisions of GB/T 34609.2 "Proceed" (see 6.1.3, 4.2 of the 2009 version);

h) It is added that the numerical values of the inspection results are rounded according to the provisions of GB/T 8170, and the rounded value comparison method is used to determine (see 7.5.1);

i) Added requirements for product packaging markings. Product packaging box markings should comply with the provisions of GB/T 190 (see 8.1.2);

j) Added the requirement that the water quality used for determining the mass fraction of triphenylphosphine rhodium chloride should comply with the provisions of first-class water in GB/T 6682 (see A 2).

1 Scope

This document specifies the marking, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and subsequent inspection of triphenylphosphine rhodium chloride. line documents and order form contents.

This document is applicable to triphenylphosphine rhodium chloride used for reaction catalysis in petrochemical, fine chemical, synthetic pharmaceutical and other industries.

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/T 190 Dangerous goods packaging markings

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

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

GB/T 34609.1 Methods for chemical analysis of rhodium compounds - Part 1: Determination of rhodium amount - hexaammine cobalt nitrate gravimetric method

GB/T 34609.2 Methods for chemical analysis of rhodium compounds - Part 2. silver, gold, platinum, palladium, iridium, ruthenium, lead, nickel, copper, iron, tin, zinc, Determination of magnesium, manganese, aluminum, calcium, sodium, potassium, chromium and silicon content by inductively coupled plasma atomic emission spectrometry

3 Terms and definitions

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

4 Marks

Name. Triphenylphosphine rhodium chloride Molecular formula. RhCl[(C6H5)3P]3 Structural formula.

Triphenylphosphine rhodium chloride product labels are expressed in the order of product name, molecular formula, and structural formula.

Example: Triphenylphosphine rhodium chloride products manufactured in accordance with this document are marked.

GB/T 23519-RhCl[(C6H5)3P]3