Ammonia

Highly toxic ammonia is theoretically the most dangerous substance to be transported through long-distance pipelines.^{[citation needed]} However, incidents on ammonia-transporting lines are uncommon - unlike on industrial ammonia-processing equipment.^{[citation needed]} A major ammonia pipeline is the Ukrainian Transammiak line connecting the TogliattiAzot facility in Russia to the exporting Black Sea-port of Odessa.

Alcohol fuels

See also: Biobutanol

Pipelines have been used for transportation of ethanol in Brazil, and there are several ethanol pipeline projects in Brazil and the United States.^[11] The main problems related to the transport of ethanol by pipeline are its corrosive nature and tendency to absorb water and impurities in pipelines, which are not problems with oil and natural gas.^[11][12] Insufficient volumes and cost-effectiveness are other considerations limiting construction of ethanol pipelines.^[12][13]