GB/T 649-2023Chemical reagent—Potassium bromide (English PDF)

1 Scope

This document specifies the properties, technical requirements, test methods, inspection rules, packaging and marking of the chemical reagent potassium bromide.

This document applies to the inspection of the chemical reagent potassium bromide.

Note. The chemical reagent potassium bromide has a molecular formula of KBr, a relative molecular mass of 119.00 (according to the 2022 international relative atomic mass), and a CAS number of 7758-02-3.

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 601 Preparation of chemical reagent standard titration solution

GB/T 602 Preparation of standard solutions for determination of impurities in chemical reagents

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

GB/T 609 General method for determination of total nitrogen content of chemical reagents

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

GB/T 9723-2007 General principles for flame atomic absorption spectrometry of chemical reagents

GB/T 9724 General principles for determination of pH value of chemical reagents

GB/T 9728 General method for determination of chemical reagent sulfate

GB/T 9729 General method for determination of chemical reagent chloride

GB/T 9735-2008 General method for determination of heavy metals in chemical reagents

GB/T 9738 General method for determination of water-insoluble matter in chemical reagents

GB/T 9739 General method for determination of iron with chemical reagents

GB 15346 Chemical reagent packaging and marking

HG/T 3484-1999 Chemical reagent standard glass emulsion and clarity standard

HG/T 3921 Chemical reagent sampling and acceptance rules

3 Terms and definitions

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

4 traits

Potassium bromide is white crystal or powder, soluble in water.

5 Technical requirements

The technical requirements for potassium bromide are shown in Table 1.