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.
Environmental Resource Permit. EQCB. Environmental Quality Control Board. GDO. Grease Discharge Operating Permit. HWR. Hazardous Waste Remediation. IW. Industrial Waste. IW5. Industrial Waste Small Quantity Generators. IW6. Septic Tanks in Wellfields. IWP. Industrial Waste Pretreatment. LW. Liquid Waste Transporters. MOP. Marine Facilities Operating Permits. MSP. Multiple Source Permits