| 摘要 |
<p>Haloketones for tear gas use, particularly chloro-or bromacetone, chloro- or bromobutanone, are stabilised against discolouration and resin-formation on storage by adding an alkali- and/or alkaline earth halide, pref. chlorides, such as NaCl for chloroketones and bromides, such as NaBr, for bromoketones, pref. added as solids or aqs. solutions, particularly conc. aqs. solns. Pref. halogen hydride binders such as alkaline earth carbonates (MgCO3, CaCO3 or BaCO3) are also added.</p> |
