Methylamines, anhydrous dimethylamine

MMHa.nd UDMH. MonomethyUiydrazine and yyz -dimethylhydrazine are manufactured by Olin Corp. using the same Raschig process and equipment employed for anhydrous hydrazine. Chloramine, prepared as described above, reacts with methylamine or dimethylamine instead of with... 

Chloro-6-cyanopyrazine with aqueous methylamine at 0° gave 2-chloro-6-(A -methylamidino)pyrazine (940), and 2-cyano-6-dimethylaminopyrazine with dimethylamine in the presence of anhydrous aluminum chloride gave 2-dimethyl-amino-6-(C-dimethylamino-C-iminomethyl)pyrazine and similar reactions were observed with other secondary amines (1424). 

Barium thiocyanate is a white solid that is very soluble in water but has a very steep temperature-solubility gradient. This solid is also soluble in acetone, methanol, ethanol, methylamine and ethylamine, moderately soluble in isopropylamine and dimethylamine, but insoluble in trimethylamine. The anhydrous salt is very hygroscopic. Crystallization from water yields the 3-hydrate as well-formed, needle-shaped crystals. Double salts are formed with the thiocyanates of the alkali and other alkaline earth metals. ... 

The amines which have been used most frequently are dimethylamine and morpholine, although methylamine, piperidine, - and anhydrous ammonia have been mentioned. 

---