Reaction of stoichiometrically equal amounts of monoethanolamine and formaldehyde produces hexahydro-1,3,5-tris(hydroxyethyl)-s-triazine or MEA triazine. It acts as efficient non-regenerative H2S scavenger gas in crude oil or natural gas refinery applications. It has a high freezing point around -40o F. (-40o C).
