Solubility

Solubility: Statements on solubility given under the heading Characteristics are intended as information on the approximate solubility at a temperature between 15°C and 25°C, unless otherwise stated, and are not to be considered as official requirements.
Statements given under headings such as Solubility in ethanol express exact requirements and constitute part of the standards for the substances under which they occur.
The following table indicates the meanings of the terms used in statements of approximate solubilities.
Descriptive term Approximate volume of solvent in millilitres per gram of solute
very soluble less than 1
freely soluble from 1 to 10
soluble from 10 to 30
sparingly soluble from 30 to 100
slightly soluble from 100 to 1000
very slightly soluble from 1000 to 10 000
practically insoluble more than 10 000 The term 'partly soluble' is used to describe a mixture of which only some of the components dissolve.