Cold water extraction: Difference between revisions
>David Hedlund →For a whole batch: Conditionally, dry the substance to calculate how solvents/water that the batch contained |
>David Hedlund |
||
Line 5: | Line 5: | ||
==For a whole batch== | ==For a whole batch== | ||
{{GenericPanel/warning | title=The potency of the dried weight before and after the extraction can differ a lot. | {{GenericPanel/warning | title=The potency of the dried weight before and after the extraction can differ a lot. 50% (25% solvents, and 25% insoluble impurities) has been discarded, reported from people who initially though they possessed a "pure" substance. So it's extra important to [[dosage]] properly after the extraction! Avoid eye balling, since a lot of street drugs can be overwhelmingly potent after the majority of the cutting agents have been removed. Avoid extraction altogether if you don't know how to dose it.}} | ||
For improved extraction, it's recommended to do an acetone wash (not covered in this guide) before you do the CWE, but it is not required. | For improved extraction, it's recommended to do an acetone wash (not covered in this guide) before you do the CWE, but it is not required. | ||
Line 11: | Line 11: | ||
# Weight the substance, and write down the value. | # Weight the substance, and write down the value. | ||
# For lumped substances: Break them apart, and sift the powder with a coarse strainer, and then with a fine strainer, to make them easy to dissolve. | # For lumped substances: Break them apart, and sift the powder with a coarse strainer, and then with a fine strainer, to make them easy to dissolve. | ||
# Conditionally, dry the substance to calculate how solvents/water that the batch contained. Use completely dried silica gel (can be heat in microwave for 5 minutes at 800W) in a sealed container, and weigh samples until they don't lose any weight, which indicates that it's completely dry. Expect a loss of | # Conditionally, dry the substance to calculate how solvents/water that the batch contained. Use completely dried silica gel (can be heat in microwave for 5 minutes at 800W) in a sealed container, and weigh samples until they don't lose any weight, which indicates that it's completely dry. Expect a loss of up to 40% wet weight from large lumps, and 50% or more from a paste. | ||
# Add the fine powder to a glass jar, and add 10 times more boiling water than the quantity of the substance, and shake well for 10 seconds. This should precipitate the soluble substances in the water. | # Add the fine powder to a glass jar, and add 10 times more boiling water than the quantity of the substance, and shake well for 10 seconds. This should precipitate the soluble substances in the water. | ||
# Let the water cool down to room temperature. | # Let the water cool down to room temperature. |