Possible impurities. The systematic name of aspirin is 2-ethanoylhydroxybenzoic acid. We usually make it by the esterification of 2-hydroxybenzoic acid (salicylic acid) using ethanoic anhydride and a catalyst such as concentrated sulphuric acid or phosphoric acid.
TxDMV Â» Motor Carriers Â» Oversize / Overweight Permits. Vehicles and loads that exceed legal size or weight limits need an oversize/overweight (OS/OW) permit and route from the TxDMV to travel on Texas roads.
The noun license refers to that permission as well as to the document memorializing that permission. A permit can be a type of license or a pass that may be temporary or has an expiration date. Some of the types of permits: â¢ Work permit. â¢ Learner's permit.