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Old 02-07-2018, 08:27 PM   #41
Hackerman
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Belle Chemical is pretty dependable. I bought their NaOH and I liked it. Here is their Potassium Hydroxide. I bought a pound because it's so cheap and I knew I would be doing a lot of testing. And, for 10 bux... what the heck. LOL

https://www.amazon.com/Potassium-Hyd...hydroxide&th=1

I also bought this one and it works well..

https://www.amazon.com/Potassium-Hyd...sium+hydroxide

Here is an Amazon link to the vanillin for THC testing, if you're going to test for that also.....

I bought this one...

https://www.amazon.com/Vanillin-Crys...words=vanillin

I didn't see any other lab grade vanillin on Amazon. If you search, add the word reagent to your search and it will return mostly lab grade.

Also, keep in mind that the vanillin is still a caustic base and can cause burns. It smells so delicious when you open the bottle. It's tempting to take a whif. Don't. And, as I was told by one of the chemists working on this.... "No, Hack, it's not safe so don't snort lines of it or you'll die". LMAO

Same with the KOH. It's no more dangerous than drain cleaner but... you would be careful not to splash drain cleaner in your eyes, too. So, gloves and goggles, please.

The denatured alcohol is available at any hardware store. Don't get anything GREEN,. The contents should read Ethanol and Methanol. Maybe some other 'proprietary' blend. But, still, Ethanol and Methanol.

Let me know if you have question on the alcohol.

Do you have some little coke vials? They make nice for mixing and....... I know we ain't a using 'em for coke no more. LMAO

Last week at our Wednesday gig, some of the older guys were doing coke. I was just shaking my head. I was wondering if I was going to get to see someone go into cardiac arrest while I was on break. LOL There is an age when it's time to quit. LMAO
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Old 02-08-2018, 12:40 AM   #42
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Thank you Hackerman, i don't have those little jars all i have are the cobolt blue ones, and it sounds like color is important. Do they need lids? do you shake it? would juice glasses work?
Old guys doing that is pretty scary I bet.
I have gloves and my led glasses should work, oh i do have goggles too. awesome.
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Old 02-08-2018, 01:12 PM   #43
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I would mix the reagents (vanillin and alcohol) and the (Potasium Hydroxide and alcohol) in bottle or jars because you can store this and use it over and over. Amber jars or bottles are great for this.

As far as the extraction and testing, you can do that in shot glasses. Instead of shaking it, just stir it.

There are detailed instructions at ICMag. I will cut and paste them here.

When you get around to doing it, I'll walk you through it.
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Old 02-08-2018, 01:22 PM   #44
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Here are the instructions as he wrote them. I would print them out and have them at my side when I do the testing.....

Before I get into how the tests are made I’d like to let you know that some of the chemicals used can be very dangerous if not handled properly, so proper safety precautions are needed so as to not get hurt.

Things you will need to protect yourself:

1# Chemical resistant gloves

2# safety glasses

3# have a place nearby to wash in case of a spill or if any chemicals get into eyes. Something as simple as a large bucket of water nearby you can flush eyes or skin off quickly before running to a sink.

4# all of the chemicals used in this experiment can be washed off or neutralized with water just in case you need to in a emergence.

5# do not use anything metal when performing this experiment! A violent reaction will happen!!! No metal tools or containers can be used, only plastic, glass, rubber can be used….

6# if you don’t really know what these chemicals are don’t try and mix any of them other than the ones I say. Lye is very alkaline and hydrochloric acid is very acidic, mixing them would not be good.

7# Use caution when storing these chemicals. Keep them away from people that don’t know how to use them, it goes without saying it, but I’ll say it anyway. Keep them away from children and pets!

8# do these experiments only in a well ventilated room.

Bottom line is, think first and don’t be stupid!



Ok now that that’s out of the way, on to the fun part! I’ll start off with how you make the extract out of the bud you will be testing.

Things you’ll need:

1# A scale. I think we all have one of these lying around. One that can weigh very small amounts like tenths of a gram or one hundredths of a gram.

2# small plastic or glass jars to mix in

3# 1 or 2ml dropper

4# 100% alcohol/ethanol or as close as you can get. 90% rubbing alcohol will not work it has to be higher than that. 95% or higher. You can buy denatured alcohol at the hardware store.

5# An oven. I like to use a cheap toaster oven so as to not make my kitchen oven smell like ****. But do what you want.



The first thing you’re going to do is take about 1 gram of dry bud to be tested and place it in a piece of aluminum foil and fold it over and then fold all the edges closed.

Place the bud and aluminum foil in the oven for 30 minutes on 220f/110c to decarboxylate the sample..... let cool....
(this is to convert THCA and CBDA into THC and CBD)

Take your crispy bud out of the oven and weigh out ½ gram or .5000 on the scale in a small jar or shot glass. Now get your dropper out and put 5 grams of alcohol in the glass with the bud and mix well. Let that sit for at least one half hour then suck the liquid out and put that in another jar or glass without getting any bud material in the glass. That is your extract you will be testing.



The first test will be the Duquenois reagent test. This is for testing THC.

There are many ways to perform this test; this is just my modified version of this test. The original test called for chloroform to be used to stabilize the mixture and separate the organic layer. But chloroform is some nasty ****. This is the stuff the Nazi’s used to kill countless people. It’s very gaseous and is a silent killer when working with it. I also don’t like buying it for obvious reasons. It can be made with bleach and acetone easily if you know what you’re doing.

Things you’ll need:

1# Glass test tubes or shot glass

2# a dropper

3# hydrochloric acid 37% or higher

4# vanillin which is a synthetic vanilla

5# 100% ethenol

6# amber glass bottles with dropper built in if you want to store the reagent for later use.



We will be making the reagent first.

Weigh out 5 grams of vanillin and dissolve that in 100ml of alcohol then put in amber bottle. That is your reagent.

Get a test tube and place three drops of your cannabis extract in the test tube followed by ten drops of reagent. Mix well. Now carefully put 10 drops of hydrochloric acid in the same test tube with your reagent and extract. Mix well and wait for color change. This may take up to thirty minutes to get to its full color.

You should see a deep blue or royal purple to black color for a high THC strain and light blue or purple for a low THC strain. Little to no color change or off color means very little to no THC.

This test is best used when comparing two strains side by side or two phenotypes of the same variety so you can see the difference in color to know which one has more THC. (darker=more THC), (lighter=less THC).

I have found that One turned purple and one turned blue which can make it difficult to compare them so I just looked at how dark the colors were. In cases like this it’s best to have a known variety that you can compare to, but most of time you will get purple as your main color.






The beam test: This test is for CBD.

Things you’ll need:

1# Glass test tubes

2# a dropper

3# 100% alcohol

4# potassium hydroxide (AKA) Lye

Dissolve 5% lye into ethanol which is five grams of lye to 100ml alcohol. Mix well.

Grab a clean test tube and put three drops of extract into the test tube followed by 10 drops your dissolved lye, mix well. You should see a pink to purple color in the presence of CBD. It may take up to thirty minutes to see any color change. Pink is low CBD and purple is higher CBD.
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Old 02-08-2018, 09:13 PM   #45
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Those little glass vials are about 25 cents each everywhere.

And, these little plastic vials make nice for the tiny 13 drop samples we test. You can use something larger like a juice glass but you'll probably have to take bigger samples and use more of everything so it doesn't get lost in the size of the glass.

These are nice and cheap. About a nickel each. They are called 1.5ml centrifuge vials if you want to search Amazon or your favorite shopping site....

https://www.ebay.com/itm/1-5ml-Micro...MAAOSwOA1aDbjP

Test tubes also work and can be bought at your local science shop or online.
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