Chloroform Wash Method (good for EU users)

I've provided a method below for this process as I have found most EU coke to be cut with Ephedrine (Ephedrine HCl crystals).

It's important to understand when washing, that temperature is a very important factor. Heat is the energy needed for organic reactions to take place. In this wash, we use cold Chloroform because Ephedrine is partially soluble in Chloroform. By reducing the temperature, we reduce the rate Ephedrine HCl can be dissolved in Chloroform, whereas coke will dissolve in Chloroform fairly easily, even at colder temperatures, so the wash will be more successful.

Also, Chloroform evaporates at 20'C, so please perform this wash in a cool environment. If you live in a country with a hot climate, do it at night.

I'd also recommend an Acetone wash beforehand to improve the quality of the product.

CHLOROFORM WASH

Goal - Removal of Ephedrine (also reasonable efficiency of Levamisole and Pseudoephedrine removal – Hexane wash required for 99% purity)

Equipment

- Lab Stand

- medium to high flow filter papers, 16 cm. in diameter

- plastic funnel, 3-4 in. diameter top

- Pyrex pie-dish (9-10 inches dia.)

- 100 ml glass Pyrex beaker and a 6-inch glass stir rod.

- Blow-dryer

- Chloroform (lab grade) – stored in Freezer overnight

Method

- IMPORTANT – PERFORM METHOD IN WELL VENTILATED AREA, WEARING MASK AS FUMES ARE VERY DANGEROUS TO INHALE

- Ensure Chloroform is chilled before use – you want it as cold as possible, but not less than minus 60’c. Most home freezers are set to -20’C, which is acceptable.

- Crush Chang as finely as possible and add to the beaker.

- Fill beaker with cold Chloroform - 10ml/g of Chang as an estimate. (12.5ml chloroform dissolves 1g of PURE Chang, so 10ml/g is an estimate based on assumed cut ratio, assumung you are starting with a purity of around 80%). The goal is to only add enough Chloroform to dissolve the Chang, as the other impurities will dissolve into the Chloroform (just at a much slower rate). Stir thoroughly with glass rod for 3-5 minutes until fully dissolved. Anything solid inside the beaker at this point, is not Chang.

- Take a filter paper, fold to half-circle, then again to a triangle. Open one of the two openings and place inside the funnel. Trim the funnel itself to where the edge of the filter paper (this prevents the solution touching the plastic funnel). Push the filter paper so into the funnel so the tip of the paper protrudes the funnel.

- Place the funnel on your lab stand so the tip of the filter paper is roughly 1 inch above the pie-dish. ENSURE THE FILTER PAPER IS SECURELY CLIPPED TO THE BEAKER.

- Keep stirring solution, then quickly but carefully, pour the solution into the filter paper. Once solution is in place, cover the top to protect from moisture.

- Allow the solution to fully pass onto the pie-dish (time will depend on purity, so check every 5-10 mins if solution is still in the filter paper.

- Once all liquid has passed through, from a distance of at least 12 inches away and facing away from you, carefully blow dry the pie-dish to evaporate off a majority of the chloroform liquid. Continue until a goo forms. Allow this goo to dry and crystalize in a well-ventilated area (Est 24 hours)