Morphine is stirred with hot distilled water, to which hydrochloric acid
is gradually added. Morphine hydrochlorate crystallizes out on cooling.
PROPERTIES.--White silky, glistening needles or microcrystalline cubes,
or a white, crystalline powder, odorless and having a bitter taste;
permanent in the air. Soluble in water and alcohol; insoluble in ether
and chloroform.
DOSE.--Horses and cattle, 3 to 10 gr.; sheep, ¹⁄₂ to 2 gr.; pigs, ¹⁄₁₀
to ¹⁄₂ gr.; dogs, ¹⁄₈ to ¹⁄₂ gr. About one-half of these doses for
hypodermic use.