Morphine is stirred into boiling distilled water; diluted sulphuric acid
is added until neutralization is attained, and the sulphate crystallizes
out on cooling.
PROPERTIES.--White, feathery, acicular, silky crystals, or in cubical
masses, odorless, permanent in the air, and having a bitter taste.
Soluble in water and alcohol, insoluble in chloroform and ether.