Experiment 8 Flashcards
Colourless or almost
colourlessliquid.
FORMALDEHYDE
Pungent / cloudy on
standing in the cold.
FORMALDEHYDE
FORMALDEHYDE: Effects
Ingesting formaldehyde can be fatal.
FORMALDEHYDE: Structure
*polar nature
*small molecular size
Highly reactive compound
polar nature
Enables it to penetrate tissues
small molecular size
FORMALDEHYDE: Uses
*Used in biology to preserve tissue specimens.
*Has a sedative effect and used as analgesic
Oxidized to Carboxylic Acid (Formic Acid)
Silver Mirror Tollens Test for
Aldehydes
Reduced forming a Silver metal
Silver nitrate
Form of a finely divided grey precipitate
Metallic silver
Colorless, transparent crystals, characteristic odor, aromatic and slightly acidic
CHLORAL HYDRATE
Chloral hydrate is metabolized to
trichloroethanol
Responsible for its physiological and Psychological Effects
Trichloroethanol
CHLORAL HYDRATE: Use
*used as a hypnotic in the treatment of
insomnia
CHLORAL HYDRATE: Mickey Finn
Knock-out Drops
Work of Mickey Finn
Chicago bartender
who served alcohol and Chloral Hydrate to
customers,
Mickey Finn
•Decomposition
•A milky solution is
produced and chloroform,
perceptible by its odor is
formed.
Chloral Hydrate + NaOH
White, shiny, or almost white, crystalline
powder
DIPHENHYDRAMINE
substance causes local numbness when
placed on the tongue
DIPHENHYDRAMINE
one of the mainrepresentatives of antihistamine drugs that block H1 receptors
DIPHENHYDRAMINE
-identify Alkaloids
- Nitrogen containing compounds
- Natural / Synthetic
Sulfuric Acid Test for Diphenhydramine
momentary violet colour is produced
which changes to red and finally to
yellow-Orange.
Violet colour->red->yellow orange
