Determination of amphetamine purity at home conditions

[Forgotten]

Hey. I get purple color when I add tropaeolin. Is my hci to strong? I made it from 30,%. 30 ml 30 hci and 70 ml water. It's suppose to be 10 % then?

 

[G.Patton]

Hey. I get purple color when I add tropaeolin. Is my hci to strong? I made it from 30,%. 30 ml 30 hci and 70 ml water. It's suppose to be 10 % then?

Forgotten

I made it from 30,%. 30 ml 30 hci and 70 ml water. It's suppose to be 10 % then?

Hi. If you has taken 30 ml 30% HCl aq solution and added there 70ml water, you has got 10%. It's correct.

I get purple color when I add tropaeolin.

Are you talking about this step?

Put the accurate weights of 10 mg of the sample into the vial, add 1 ml of distilled water and 1 ml of 10% of hydrochloric acid. Add distilled water to get the total volume of solution of 5 ml. Then add 2 drops of tropaeolin OO and 2 drops of methylene blue.

 

[G.Patton]

Yes that step. And when I add o.5 ml sodium nitrite it turns blue. This is when I don't have any amphetamine into. And it's no difference when I add amphetamine. I'm doing something wrong but I don't know what. Do you have som tips at what I'm doing wrong?

ForgottenHave you made sodium nitrite sln correctly as it is described here?

Put 0.73 g (94.51% purity) of sodium nitrite into a measuring glass and add distilled water up to 100 ml (the accuracy is very important). You will get 100 ml of 0.1M solution of sodium nitrite.

 

[Forgotten]

Yes I did the same. But I'm not 100% sure about purity. It's supposed to be 98% Pure

 

[G.Patton]

Yes I did the same. But I'm not 100% sure about purity. It's supposed to be 98% Pure

ForgottenIt's okay

 

[Forgotten]

Is it a easy way to check the purity off sodium nitrite?
Why is your solution orange colored and my purple colored

 

[G.Patton]

Is it a easy way to check the purity off sodium nitrite?
Why is your solution orange colored and my purple colored

ForgottenTbh, I have no clue. Are you sure that you have sodium nitrite, not nitrate?

 

[Forgotten]

Tbh, I have no clue. Are you sure that you have sodium nitrite, not nitrate?

G.PattonI'm sure it is nitrite nano2