(τετραφάρμακος), or "the four-part cure," is the Greek philosopher Epicurus' (341 BC, Samos – 270 BC, Athens) remedy for leading the happiest possible life. The "tetrapharmakos" was originally a compound of four drugs (wax, tallow, pitch and resin); the word has been used metaphorically by Epicurus and his disciples to refer to the four remedies for healing the soul.
Carbon Tetrachloride is a toxic but very useful solvent used in brominating thiophene to 2-Bromothiophene using bromine. Carbon Tetrachloride is synthesized by adding chlorine to chloroform and iron powder. Carbon Tetrachloride is toxic to the kidneys and liver.
Properties
Chemical formula
CCl4
Molar mass
153.81 g/mol
Appearance
Colourless liquid
Odor
Sweet, chloroform-like odor
Density
1.5867 g/cm^3 (liquid)
1.831 g/cm^3 at −186 °C (solid)
1.809 g/cm^3 at −80 °C (solid)
Melting point
−22.92 °C (−9.26 °F; 250.23 K)
Boiling point
76.72 °C (170.10 °F; 349.87 K)
Solubility in water
0.097 g/100 mL (0 °C)
0.081 g/100 mL (25 °C)
Solubility
Soluble in alcohol, ether, chloroform, benzene, naphtha, CS2, formic acid
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.