The IPCC report 2007 underlines the particular importance of aerosol particles for the water cycle and the radiation balance, and thus for the global climate. In Cirrus clouds the occurrence of cubic ice (the metastable phase of water ice at ambient pressure) has been discussed due to high H2O vapour pressures observed. Hansen et al. have claimed that there is not only one cubic ice phase but a certain band of cubicity, which depends very much on the experimental conditions and might also be a function of the pH-value since structural disorder seems to be the controlling factor. We intent to reveal the short range order for cubic ices produced by different procedures. The phase transition from amorphous ice into cubic ice will be the starting point. Additionally, we will measure the first INS spectra of pure, crystalline nitric acid, which exhibit a high degree of molecular disorder.