RCs Tips for weighing mdpv doses safely/accurately?

[Harambulus]

I really don't wanna fuck around with the dosing so I wanna get all the doses ready and done in one go.

I wanna prob have each dose around 8mg for oral dosing.

My scales are pretty shit since they jump from 0.3-0.7 when I was trying to weigh some up yesterday. In this case I used 0.7 as the reading to be safe.

So what would be the advised best way to do it (I don't want to further commit to drug use so I have no intention of getting more scales)?

What makes matters more difficult is the clumpy consistency of the substance.

 

[Korn3x]

the only real way is to get a decent scale. either that, or you could try constructing your own microgram balance. there's some threads about this on here, as well as other sites. there are at least 3 different models i've seen available online, so find one that seems easiest for you. note that i haven't constructed one of these, and not sure how accurate they are, altho from the small/moderate amount of reading that i've done, they can be tuned to be pretty accurate if given the dedication.

a good scale is really only the way to go though. i was in a similar situation where i had to weigh out 20mg doses of a RC. you wouldn't believe how small the amounts are, and if the scale is jumping around that much, you really need to invest in a new one. also make sure to make multiple weighings of a sample before you can safely decide that it is indeed the correct measurement. do a search online in order to practice good weighing techniques in order to make the most out of whatever microgram scale you decide to purchase.

.3-.7 is 300-700 mg mind you, not 30-70 mg... a HUGE difference if you're scale is off. with RC's you really do need a decent .001 scale, especially if you're trying to achieve 8mg doses.

 

[Harambulus]

Oops I made a mistake.

I didn't mean 300-700. I meant to say between 30 mg and 70.

What would be the search term for the DIY microgram thingy? I'll take a look into that 1st and see if it seems feasible.

 

[Korn3x]

well, if you're somehow able to get an accurate weighing on your scale of a somewhat larger measurement, and the compound is freely soluble in liquid solution, then you could try to achieve a weight by volume.

i recommend weighing by difference. here is a link to a website that goes on to explain the process with some pics. i didn't have time to read thru it, but it looks about right from my experience with a very tedious analytical chem lab. just apply the appropriate differences to whatever you may need to use.

http://www.ic.sunysb.edu/Class/che133/techniques/weighbydiff/sld001.htm

edit: and what i meant was weigh by difference first to get an accurate amount that you can work with, then use volumetric measuring to appropriately dish out an accurate quantity of compound per ml of solution.

 

[Harambulus]

Thanks.

The substance is MDPV as stated in the title.

Hmm, I am a lil worried about the solution method will it be consistent throughout? I'd also be worried about screwing it up.

 

[Korn3x]

^^
as long as the chemical is freely soluble in whatever solvent you are going to submerge it in, it should be fine. just make sure to mix/stir appropriately, and it should come out fine.

you'll have to check on interactions with mdpv and water though (or whatever other solvent may be appropriate), and whether or not your new solution can be stored. for example: some chemicals will work fine once you dissolve them and dose them to your group of friends, but any leftovers you have might change into other compounds over time by sitting in the solution. not sure how it applies to your case or not though.

also, make sure to do several measurements on your scale, until you are completely confident in how much dry compound you want to make a solution with. you'll also potentially need a graduated cylinder or something else that's reliable in making accurate measurements in.

then, just do the appropriate math to calculate how many mg will be in a ml of solution. to measure out the smaller doses, you can pull ur doses up from the main solution using some oral syringes. make sure to do a tester dose first, with like maybe half of what you're planning on doing, just to see if your math and procedure came out correct. also, make sure to give your final solution a few good stirs between drawing up doses with the syringes, just to make sure you have a homogeneous mixture.

and ya once i saw the title i edited my post to remove that question.

 

[Harambulus]

I don't see the point in doing the solution step since it would already be weighed out properly anyhow and that is the main issue.

Once they are weighed I would easier just put them in caps.

 

[Korn3x]

the point of using the solution step is because u have a shitty scale, so you may have to use a larger amount of compound, that way the percent error is less. this dose will much likely be much more than what u plan on dosing, so measuring out ur doses using this volume technique will allow u to split up ur big dose into appropriately sized single doses.

if it turns out ur compound is stable in water, u could evaporate the excess solvent with a variety of techniques. who knows, maybe ur compound will even be freely soluble and stable in a solvent other than water that will be much easier for u to remove ur solvent from ur product, allowing u to have a dry compound

 

[Harambulus]

Still sounds rather complex to me.

I can just weigh the powder out in larger amounts can I not? What I managed to do yesterday if still a bit fiddly.

 

[supermarket]

Your looking for answers that arent there man. The "trick" is to use a proper scale, for the dosage increments you are trying to measure out.

Anything else is going to be a LOT more work , which you dont seem to be interested in, or MUCH less accurate, which is why you came here.

Not being mean, but taking shortcuts can have negative consequences

 

[Korn3x]

Still sounds rather complex to me.

I can just weigh the powder out in larger amounts can I not? What I managed to do yesterday if still a bit fiddly.

yes you can still weigh out larger amounts, but then how did you propose to break that larger amount into smaller ones?

you simply can not eyeball it. i weighed out about a dozen doses the other weekend, and i can say that even using a pretty decent microgram scale, each weighing takes an ample amount of time. it probably took me over an hour or so. you're forgetting how small these amounts actually are. they look like nothing, and when doing my weighings i honestly couldnt tell you the difference between a 15mg capsule, and a 23mg capsule.

if you do end up getting a decent microgram scale, make sure you don't keep touching whatever object you are using to weigh your chemicals in. use a pair of tweezers, or similar like object (depending on what object you're using to hold your materials) to handle it (i used a small scrap of paper). fingerprints do in fact have mass, and will mess up your measurements.

and yes, i know the work to weighing out these things is a bitch. the chemistry and math behind doing it is actually not that hard, but nevertheless, it's a bitch having to look it up and make sure you have the right steps if you've never done it before. i suggest get a good caffeine buzz going or something before your weighings.