Across rural Colombia, thousands of laborers process the paste into a sludge that is dried to form the raw ingredient for powdered cocaine hydrochloride.

Cocaine usually comes into this country in the form of cocaine hydrochloride.

'Crack' is produced by mixing cocaine hydrochloride with sodium bicarbonate and water.

It was the production of a substance with physical and chemical features different from the cocaine hydrochloride from which it sprung.

The salt (cocaine hydrochloride) was covered in paragraph 4.

The original speedball used cocaine hydrochloride mixed with morphine sulfate, as opposed to heroin.

In contrast, cocaine hydrochloride does not vaporize until heated to a much higher temperature (about 197 C), and considerable decomposition/burning occurs at these high temperatures.

Crack is a smokable, freebase cocaine made from powdered cocaine hydrochloride.

And crack got its name because cocaine hydrochloride, concentrated by heating, would make "a cracking sound as it cooled."

Until 1983, cocaine was used almost exclusively in powder form (known as cocaine hydrochloride).