Síntese de metanfetamina a partir de P2P via Al/Hg

[Venus9987]

Olá, posso usar pó de alumínio para 1000 fins em vez de folha de alumínio?
E o éter pode ser substituído por éter de petróleo?

 

[Chemist Jun]

O pó não é bom e não faz amálgama porque gera hidrogénio a alta velocidade
A folha de alumínio é eficaz porque também ajuda a transferir electrões

 

[Manisj@1290]

Posso substituir o etanol por metanol para fazer metanfetamina por este método, porque não tenho etanol?

 

[Pinkbay]

if i cant buy diethyl ether and petroleum ether , what can i use to replace?

 

[should]

Hello sir, can we also use mercuric sulfate or mercuric iodide?

 

[William Dampier]

I think I used Hg iodide. But I didn't use sulfate. So one thing definitely works.

 

[should]

sir,can mercuric iodide replace mercuric chloride？ Is the dosage the same?

 

[Dephoj]

Hello,its possible to use sodium nitrate instead of sodium chloride , much thanks

 

[lalalander]

Sodium chloride is literally table salt.

 

[GhostChemist]

No
But you can try without using sodium chloride

 

[Omert4]

Please shoot me down in flames if (good chance) I am wrong.

Has anybody attempted a one pot reduction from Pn2P via al/hg using nitromethane as methylamine source , straight to free base .

A chemical engineer out there must be able to tell me why this cannot be/ has not been done.



Thanking you in advance

 

[GhostChemist]

There were messages about this method in the discussions on the forum
But this method is dangerous

 

[Arakava]

The aqueous 39% methylamine we use in this reaction is make by this method or we can just dissolve methylamine hcl in water and add it to the mixture?

 

[HIGGS BOSSON]

You need to use aqueous methylamine freebase, which you can buy or prepare from HCL form by this method

 

[Usernator]

Hi, I need help with workup, please. I’m using steam distilled P2P made from P2NP using Fe/HCl, 40% Methylamine aq., Al pellets made from thick wire+HgCl2 and IPA as solvent. After rxn and filtering IPA, I vacuum distilled ipa from freebase, then dissolve again in ipa and bubble HCl gas thru.. pH measured and ~4-5… pour into baker, heated, but then, after almost all solvent is evaporated, mixture become dark pink/purple color and some dark purple “oil” droplets appear, also yield was only about 15%.. can sb tell me what it is or what probably I’m doing wrong? Thanks

 

[GhostChemist]

this is normal process, associated with the impure P2P
recrystallize your product

 

[Rabidreject]

Hey if I have methylamine HCl, is the only way to utilise it by freebasing and bubbling it through water to get the 39% aqueous methylamine?
Is there anyway to include it as the HCl salt and then use a weak base or something during the reduction?

 

[GhostChemist]

Bubbling through water is an ideal variant

But methylamine HCl can be dissolved in small volume of water and then this solution added to absolutely alcohol (MeOH, EtOH or IPA) solution of NaOH or KOH (In the equimolar ratio!). And notice, volume of water for dissolve methylamine HCl and water after reaction, must be formed azeotropic solution with alcohol after reaction.

 

[Pinkbay]

Sir, can I use 35% methylamine in methanol instead of methylamine in water?

 

[Speedfac]

yes , Methylamine in Methanol its 33%.

 

[Speedfac]

yes , Methylamine in Methanol its 33%.

 

[Pinkbay]

thx a lot, sir.