Aim To familiarize oneself with some more common instances of corrosion. Reagents Hydrochloric acid 0.1 M; sulphuric acid 0.1 M; zinc and aluminium granules; copper wire; solution of copper(II) sulphate; solution of copper(II) chloride; solution of iron(II) sulphate; solution of potassium hexacyanoferrate(III); zinc-plated iron sheet; tin-plated iron sheet; iron paper clips; solid NaCl; urotropin. Equipment Test tubes, small beaker (50 cm3), centrifuge tube. Experiments 1. Making of a galvanic pair 1.1. Place a zinc granule on the bottom of the centrifuge tube and pour solution of hydrochloric acid on top
Barbiturates - sedative hypnotics Such as: Thiopental (PentothalTM) Allobarbital Phenobarbital Replaced by benzodiazepines (Xanax, Valium) in routine medical practice · Less dangerous in overdose and addiction 9 October 2012 SODIUM THIOPENTAL Definition: ultra short acting barbiturate Classification: IV anesthetic-hypnotic Physical chemical properties : -Yellow powder with a sulphuric smell and a bitter taste -highly lipid soluble compound -combined with sodium carbonate, becomes water soluble 9 October 2012 SODIUM THIOPENTAL Anesthesia Medically induced coma Euthanasia Lethal injection Truth serum Psychiatry 9 October 2012 SODIUM THIOPENTAL Presented as powder, dissolved in water to required concentration
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