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Petroleum Ether Ethyl Acetate
今有一物，关乎石油醚与乙酸乙酯。二者之用，颇为紧要。石油醚者，性本清疏，常为萃取、分离之助。乙酸乙酯，气香且溶力颇佳。二者配合，于诸多方术之中，各展其能。或相协以提精华，或相济以调物性。其法精妙，非深谙此道者不能明也。操作之际，察其比例，观其变化，依理而行，方可得其成效。此二者之妙，于诸般事宜中，具莫大之功，当细究而善用之。
+8615371019725
sales7@alchemist-chem.com
+8615371019725
Yana Yang
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