Aim\ In order to provide the theory and experimental data for foaming technology of a new ammunition
the law of solvent adsorption of the preformed powder grains is studied. Methods\ Under certain temperature
the curves of the solvent adsorption volume of grains changed with prolonging time had been tested by two ways of analysis
instrumental and chemical. Results\ The relation of solvent content
temperature and time in the airtight vessel has been ascertained. Conclusion\ The solvent adsorption volume of the ammunition grains regularly changed with time prolonged and can be controlled by temperature and time.