What dissolves boric acid also dissolves cocaine.hcl for the most part. You'd have to add NaOH solution to raise the pH well over 7, extract it with a non-polar solvent not miscible with water, completely dry the solvent/cocaine base solution, and gas the solution with saturated hydrochloric acid fumes funneled through PPE tubing. This will form fresh powdered rocks from cocaine base oil + with anhydrous hydrochloric acid vapor. It is a LOT of work, relatively speaking, for the organic chemistry dilettante. There's always a chance it's actually some other stimulant, altogether, too.
Ok let's run down some stuff:
- You sound like you're familiar w/cocaine. On a scale, 1 – 10 how certain are you this contains coke?
- Do your lips / gums go numb when rubbed with it? Do they also burn like your nose?
- Go to the pool store, hobby store, gardening store, or whatever and purchase pH litmus paper. If you can't find it, order it online.
- Take a pinch of the coke and put it in a shot glass with a small splash of distilled water from the grocery store. Yes, it needs to be distilled water, but in a pinch, at least use filtered water or something where the water's pH is 7.0 or close to it on its own (without the the cocaine).
- The cocaine is really cocaine hydrochloride and it should make the pH of the water lower than before when dissolved.
- If the pH goes upward and/or the cocaine will not dissolve in the water, you've probably got crack or a mix of coke + crack in a half-failed conversion or something.
- If it dissolves and the pH rises, you might have NaOH or soda ash mixed in someone's failed attempt to cook crack from cocaine.
- If the pH drops dramatically, then perhaps @G_Chem is on the money in guessing it's Boric acid. That would make more sense.
- Maybe some of it dissolves, and some stays solid in the water. Filter this out and dehydrate / evaporate the water to see if anything is left behind.
- Acetone-washing cocaine is tricky owing to the fact that acetone is hygroscopic, cocaine.hcl is extremely hydrophilic, consumer freezers/refrigerators are typically very damp-if-cold environments that will quickly introduce moisture to your cocaine both from the air and the sweating on the glass the moment the container is open. It takes a good deal of trial and error to figure out your technique to avoid all of the pitfalls above.
- Your man is kinda fucking you over. Try talking to him about it and see if he's willing to split the amount with you by giving you a 50% credit with him for the next time you cop something.
That's only fair – after all, remind him that he wants your repeat business and your referral for new business or he isn't worth his weight in benzocaine. And tell him to quit stepping on the product or you're going to pour Boric acid in his gas tank, that greedy motherfucker.
Unless he keeps it realer than you, in which case you either step up your keeping it real game or learn how to whip that shit into crack cocaine and either smoke it or sling it to make your money back and drop your dealer like a hot potato; find someone who gives a fuck about customer service. What a douchenozzle someone is for cutting that shit.