Grammar's Response. The choice of open/opened depends on what we're talking about. Yes, we can say (and often do) that the store is open, but if we're talking about the actual process of someone opening the doors, we'd say The store is opened every morning at 8 o'clock..
Ethanolamine (C2H7NO) is used in the pharmaceutical industry as a pH adjuster and buffering agent. It is a colorless to yellow clear liquid. There is evidence that it can be a human skin toxicant or allergen, and it should not be left on the skin. It has certain restrictions for use in the cosmetics industry. Ethanolamine oleate, a prescription drug, is a sclerosing agent. It works by creating scar tissue inside a swollen or dilated (wider than normal) vein to prevent bleeding.
Methylamine is an organic compound with a formula of CH 3 NH 2. This colorless gas is a derivative of ammonia, but with one H atom replaced by a methyl group.It is the simplest primary amine. It is sold as a solution in methanol, ethanol, THF, and water, or as the anhydrous gas in pressurized metal containers.Industrially, methylamine is transported in its anhydrous form in pressurized railcars and tank trailers.ethylamine is prepared commercially by the reaction of ammonia with methanol in the presence of a silicoaluminate catalyst. Dimethylamine and trimethylamine are coproduced; the reaction kinetics and reactant ratios determine the ratio of the three products.