Why in the laboratory vacuum desiccator or "Dude, Where's My Drugs?"
Many dealers have faced the following challenges:- theft of a small weight of goods by couriers;
- regular weight shortages in retail packaging.
Take 100 g pure α-PVP directly from the laboratory and figure out where part of the product is lost in the process of its sale.
We separately put stones and α-PVP powder under stable, identical conditions for 9 days. Average air temperature in room 68℉, dry air, no contact with light. 6 weight measurements were performed on different days.
Initially, the product is beautiful in appearance - shiny stones, dry powder. But in fact, the stones are brittle and are polymorphic crystals containing the remains of the mother liquor at gluing points with each other. On the fourth day, the stones became matte and significantly lost weight. It is worth immediately indicating the negligent attitude of the laboratory to the supply of goods. The fact is that if α-PVP is dried to a constant weight, it will lose its brilliance and beauty. This problem cannot be solved by packing the entire batch in retail packaging. Even in packaging, the product continues to dry to a constant weight. Therefore, the buyer receives instead of the expected 1 g, approximately 0.8 g (depending on the lot, the date of manufacture).
According to statistics, a retail courier delivers about 50 g of products in 10 days. Therefore, the second half of the goods in these 10 days dries up by about 3-4 g. According to the results of sales, the courier may be fined for weight loss, thinking that he is stealing goods.
The graphs show that the powder dries faster than the stones. The fracture shows that the stones inside are still shiny and contain moisture. Regarding 100 g of product, the average drying is about 6.5 g. As for amphetamine, final weight loss can reach 30% if the laboratory supplies raw goods. When a product has a constant weight, its dosages correspond to those specified in the catalogs. At the end of the experiment, the system consumer confirmed that α-PVP became stronger in action, using the usual dosage.
Total: the laboratory have to supply dry goods of constant weight. Complete drying is achieved in a vacuum desiccator using a drying agent.
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