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Dibenzothiophene (DBT, diphenylene sulfide) is the organosulfur compound consisting of two benzene rings fused to a central thiophene ring. It has the chemical formula C 12 H 8 S. It is a colourless solid that is chemically somewhat similar to anthracene .
The Gmelin rare earths handbook lists 1522 °C and 1550 °C as two melting points given in the literature, the most recent reference [Handbook on the chemistry and physics of rare earths, vol.12 (1989)] is given with 1529 °C.
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For alcohol, the cutoff is uniform: A blood alcohol concentration above 0.08 percent. But there is no standard cutoff for THC, the psychoactive compound in marijuana.
Δ-8-tetrahydrocannabinol (delta-8-THC, [a] Δ 8-THC) is a psychoactive cannabinoid found in the cannabis plant. [1] It is an isomer of delta-9-tetrahydrocannabinol (delta-9-THC, Δ 9-THC), the compound commonly known as THC, with which it co-occurs in hemp; natural quantities of ∆ 8-THC found in hemp are low.
The Arkansas Medical Marijuana Amendment passed by a vote of 53%–47% as an amendment to the state constitution. [15] It allows patients who obtain a doctor's recommendation to possess up to 2 + 1 ⁄ 2 ounces (71 g) of cannabis for treatment of any of 12 qualifying medical conditions. [ 15 ]
On December 17, 2009, Rev. Bryan A. Krumm, CNP, filed a rescheduling petition for Cannabis with the DEA arguing that "because marijuana does not have the abuse potential for placement in Schedule I of the CSA, and because marijuana now has accepted medical use in 13 states, and because the DEA's own Administrative Law Judge has already ...
Triple point: 184.9 K (−88.2 °C), ? Pa Critical point: 508.7 K (235.6 °C), 5370 kPa Std enthalpy change of fusion, Δ fus H o: 5.28 kJ/mol Std entropy change of fusion, Δ fus S o: 28.6 J/(mol·K) Std enthalpy change of vaporization, Δ vap H o: 44.0 kJ/mol Std entropy change of vaporization, Δ vap S o: 124 J/(mol·K) Solid properties Std ...