BK4 (2b4m) Containing 4-methylpropihenon

[mocnykutas]

I made my self 2b4m i never get problem.

 

[w2x3f5]

20mm diameter crystals my little boy =)

and storing the aminoketone as the free base is not a very smart idea. And yes, amines in the normal state are colorless transparent liquids. You have the color of urine in aminoketone, obviously impurities ...
Before you show off, think at least a little in front of whom you are showing off =)

 

[mocnykutas]

Yes and need weeks to made is
I made in 1 day.
All synthesis go 1 day next day product is ready to use.
Like this im picture need weeks. Dobry have time to wait weeks

 

[w2x3f5]

You are trying to mix everyone with shit, to prove that you are cool, but this is not so, judging by your photos. We are looking for the best option for cleaning bk4, in which there are around 30 percent of impurities, and if you are stupid, re-read the post from the very beginning, there is an indication from me what kind of impurity and cleaning options. We're trying to help people, meanwhile you're posting nonsense trying to teach me something. The best solution is for you to shut your mouth if you have nothing good to offer to solve the problem.

 

[w2x3f5]

Bro we happy about y, y can stop spamming? People try fix problem

 

[mocnykutas]

Yes im nerd xD

 

[w2x3f5]

these are not crystals and you have dirt in them))) Do you want to measure pips? or I need to show you monolithic crystals weighing 5 kg? )))

 

[mocnykutas]

Crystal must dry only.

 

[white7proton]

I've recrystallised it, 60g 2b4m (washed with hotwater to remove 4-methylpropihenon oil that floats on top) in 100ml IPA at 60c temperature, controlled using water bath and thermometer, I got 44g back so hopefully it's pure now. I am doing a 1g 2b4m experiment now.

I know photos don't mean anything but just wanted to show dirty unwashed and 2b4m vs washed and recrystalised 2b4m

Hopefully the 1g experiment works

 

[mocnykutas]

Yes this yellow is dirty 2b4m whrite crystal is pure now

 

[w2x3f5]

Mr. obvious, for this we recrystallized from IPA. Only white color is not a guarantee of purity, it is strange that you, as a chemist, do not know this)

 

[karate.kid]

Almost 30% mixing powder?Really people don't know what they sell?This is joke

 

[w2x3f5]

read the screenshot with the seller's answer... what can I say...
It does not have quality control of incoming reagents. and whoever produced bk4 set bromination very badly, this is a standard problem that for beginners, due to acid imbalance, the reaction rises and bromination does not go to the end
and of course, not gas chromatography-mass spectrometry, and even on the plate for RF spots, I didn’t check

 

[w2x3f5]

I'm sorry, Google translate constantly sets me up by adding me to the translation, I... I ... I ... =)

 

[breathing.fire]

Seller is Pl guy I have friends from Pl and one company sell shit bromoketones.if he is reseller it is time to change place where he buy ketones.This company sell this staff much time than this is not beginners problem

 

[w2x3f5]

who does the synthesis of bromoketone does not check the completion of the reaction on plates with aluminum oxide. The Chinese always attach the GC document, only bad suppliers/manufacturers don't check and don't provide the spectrum.

 

[w2x3f5]

they do business as they can, wholesale prices for 4-methylpropiophenon in China from a ton of about $ 30 per kg, if the synthesis is done correctly, the yield is 1.3-1.4 kg bk4 (b2m4) and the price is completely different for bk4.

 

[breathing.fire]

Yes and You buy staff,make shit job, low yield,much risk.
They only sell staff,legally job and count money.

 

[w2x3f5]

G.Patton
I understand correctly: 1. the seller himself admitted that he was selling low-quality goods 2. the seller refuses to replace the goods or compensate for its cost, even part of the cost 3.Are you asking for proof of melting point after the seller himself confessed to the defective item?
Don't you think it's strange to ask for proof when the seller himself confessed...

 

[Constantylious777]

I didnt tell me product is shit. Never had problems with customers but since about 1 month i see that lot of polish people try to make my reputation bad - its easy to see broken language info typical to polish people who dont know how to proper write.
My products are best and i have good reputation since start. Don't tell that i admitted anything - lot of people wanna make me out of business due I provide escrow provided system of selling since they can't scam people by selling shitty items or even not sending. It's really shameful dear people - respect your vendors.

 

[white7proton]

Read what you sent me. You ADMIT you made a mistake and that others complain about quality...

If you make mistake and admit it like you do then any decent human being would hold their hands up and work out something with the customers so the customer is happy and also the customer will come back because they have gained trust.

 

[Constantylious777]

As i told before - no refunds are possible - you order at your own risk - its ordered specially for specific person and non refundable - i cant be sure that someone is sending me proper product and if someone is afraid of losing money why he order 5kg instead 250g? I dont force anyone and from my listrings you can order even 50g.

 

[Constantylious777]

I even talk with you when there is a problem - if someone ordered from alibaba or something and is angry he will not even get response from vendor - it is really sad that we send people worldwide including USA AUS and since months and just 1 customer with his friend is making these claims...
Regards good people

 

[white7proton]

Read what you sent me. Stop changing what you want to say. This is ridiculous

No trust at all, buy at our own risk, that's absolutely shocking

 

[white7proton]

You admit in that photo that you make mistake but you do not want to fix your mistake?!

 

[mocnykutas]

brother, your product is at a high level, their synthesis is not suitable and their chemical experience is amateur so