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Tetrapharmakos
(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.
Tetrapharmakos, the four-part cure;
Don't fear God,
Don't worry about death;
What is good is easy to get, and
What is terrible is easy to endure
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Ἄφοβον ὁ θεός,
ἀνύποπτον ὁ θάνατος
καὶ τἀγαθὸν μὲν εὔκτητον,
τὸ δὲ δεινὸν εὐκαρτέρητον
Don't fear God,
Don't worry about death;
What is good is easy to get, and
What is terrible is easy to endure
-
Ἄφοβον ὁ θεός,
ἀνύποπτον ὁ θάνατος
καὶ τἀγαθὸν μὲν εὔκτητον,
τὸ δὲ δεινὸν εὐκαρτέρητον
Tetrapharmakos by khalyd September 9, 2012
Tetrahedral
An insult that has no meaning but will mentally obliterate anyone it is used against. Only use if you plan on never talking to the victim again.
Tetrahedral by Trump gaming October 15, 2020
Carbon Tetrachloride
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
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
Carbon Tetrachloride by CognitiveFuel January 31, 2023
Tetrahydrocannabinol
Tetrahydrocannabinol (THC), is the main psychoactive ingredient in the Cannabis Sativa plant that gets a user 'High'.
It's scientific name is Δ9-tetrahydrocannabinol (delta-9-tetrahydrocannabinol), Δ¹-tetrahydrocannabinol (using an older numbering scheme), or dronabinol, is the main psychoactive substance found in the Cannabis plant. It was isolated by Raphael Mechoulam and Yechiel Gaoni from the Weizmann Institute in Rehovot, Israel in 1964. In pure form it is a glassy solid when cold and becomes viscous and sticky if warmed. THC has a very low solubility in water, but a good solubility in most organic solvents such as pure ethanol or hexane.
It's scientific name is Δ9-tetrahydrocannabinol (delta-9-tetrahydrocannabinol), Δ¹-tetrahydrocannabinol (using an older numbering scheme), or dronabinol, is the main psychoactive substance found in the Cannabis plant. It was isolated by Raphael Mechoulam and Yechiel Gaoni from the Weizmann Institute in Rehovot, Israel in 1964. In pure form it is a glassy solid when cold and becomes viscous and sticky if warmed. THC has a very low solubility in water, but a good solubility in most organic solvents such as pure ethanol or hexane.
Tetrahydrocannabinol by hdsk September 10, 2008
Tetrahydrofuran
Tetrahydrofuran (THF) is a cyclic ether (heterocyclic compound) with a 5-member ring and an oxygen atom inside. Its formula is C4H8O
Tetrahydrofuran by chemguide August 10, 2019