What is the Nagai method?
The reduction of ephedrine or pseudoephedrine hydrochloride using hydriodic acid and red phosphorus, known as the Nagai route, is preferred in the Asian and South Asian region. The method is straightforward and can be used for large-scale production (Figure 1).
What chemical did Walter White steal from the train?
methylamine
Walt, Jesse and Todd Alquist are able to steal methylamine from the train, and pump it inside a large plastic tank, which they kept it in the headquarters of Vamonos Pest.
How do you make synthetic ephedrine?
Commercial ephedrine is produced by one of three methods: (a) extraction from Ephedra plants, (b) full chemical synthesis or (c) via a semi-synthetic process involving the fermentation of sugar, followed by amination.
How is pseudoephedrine made?
Pseudoephedrine was first known as a natural substance that occurs in shrubs of the Ephedra genus, which grow worldwide. Almost all commercial pseudoephedrine, however, is produced by fermenting dextrose in the presence of benzaldehyde. The primary product, (R)-phenylacetylcarbinol, is aminated to make pseudoephedrine.
How is ethylamine prepared in laboratory?
Q: How can we prepare ethylamine in the laboratory? Ans: We can prepare ethylamine in the laboratory by Hofmann’s bromide reaction. Propionamide is heated with bromine and potassium hydroxide solution.
How much does a 55-gallon drum of methylamine cost?
Assuming a standard 55-gallon drum, this works out to $182 per gallon.
How much does a 55-gallon drum of methylamine weigh?
You can expect an average 55-gallon drum weight to be about 48 pounds (22 kg) for a steel drum, and about 25 pounds (11 kg) for a plastic drum. The filling liquid or solid and type of 55-gallon drum will also impact its overall weight.
How do you oxidize pseudoephedrine?
Pseudoephedrine contained in pills is oxidized using potassium permanganate and an acetic acid milieu [4, 5] or, alternatively, using potassium dichromate in sulfuric acid [6].
How can you make pseudoephedrine?
Almost all commercial pseudoephedrine, however, is produced by fermenting dextrose in the presence of benzaldehyde. The primary product, (R)-phenylacetylcarbinol, is aminated to make pseudoephedrine. What does pseudoephedrine do, and what are its downsides?
How much does a 55 gallon drum of methylamine weigh?
How is ethanol obtained from ethylamine?
Ethylamine is produced on a large scale by two processes. Most commonly ethanol and ammonia are combined in the presence of an oxide catalyst: CH3CH2OH + NH3 → CH3CH2NH2 + H2O. In this reaction, ethylamine is coproduced together with diethylamine and triethylamine.
How much does a 55 gallon drum of methylamine cost?