Flashcards in Uses Deck (17):
What are the primary purposes for alkylhalides?
They are used for solvents
What replaced carbon tetrachloride?
Now use 1,1,1-trichloroethylene
What replaced chloride and chloroform?
Now use methylene chloride because chloroform equals death
What are reagents important for?
Up until 1840, what was used for anesthetics?
What 5 things are used for anesthetics now?
Halothane, ethyl chloride, isoflurane, desflurane, and sevoflurane
What was freon invented for?
To replace ammonia and refrig. gas. Ammonia equals death
What's the harm of freons?
When released into atmosphere, it destroys ozone
What was freon 12 replaced with?
Replaced with low boiling hydrocarbons in aerosols
Where did freon 22 replace freon 12?
In cars and fridges
Freons with C-H bonds (HCFCs) are destroyed where?
Altitudes below stratosphere
Propane substitutes what?
What was used to fight Black Death from fleas?
Pesticides, arsenic in particular
In 1939, what was used for pesticide?
DDT, which is non toxic to mammals in small doses
What's wrong with a large amount of DDT?
When was DDT banned in US?
1972. Still used in insect borne diseases