Study of oxidation level of inorganic oxidation agent to atom position in solid single base propellant

Study of constituent component of solid propellant is reported. Single base of solid propellant was distinguished by the oxidation agent level from inorganic compounds from potassium salts. A series of oxidation agent which were observed are Potassium nitrate (KNO3) and Potassium dichromate (K2Cr2O7). pH value of 1% solution in water for each compound are 6.20 and 4.12 indicated the third of compounds are acidic system relatively. While the conductivity for 1% solution in water of K2Cr2O7 is 7624 µs/cm and KNO3 is 5855 µs/cm at 27.5 ˚C. All observed compounds are powder form which have solid content 100% with small amount trace element in ppb level are indicated. Spectroscopy molecule by Uv-Vis region was confirmed for maximum wavelength of 5% K2Cr2O7 solution was at 485 nm while KNO3 almost undetected. In this study, the effects of crystallization parameters were carried out for K2Cr2O7 and KNO3 to observe the morphological and physical characteristics of the crystals. It is found that smooth, spherical, and transparent crystals are obtained by slow cooling crystallization pattern and above 500 agitator rpm. Irregular-shaped crystals are obtained under fast cooling pattern and/or lower than 500 agitator rpm. It is also seen from XRD patterns that K2Cr2O7 and KNO3 do not have any amorphous phase on the surface. The crystallography information such as space group, lattice parameters, X-ray density, anisotropy displacement parameters, bond length and electron density distribution for each compound were also study from XRD patterns.