The chemicals Purification Of Abietic acid / Pemurnian Bahan Kimia Asam Abetik

[514-10-3] M 302.5, m 172-175O, -116O (-106O)(c 1, EtOH).
Crystd by dissolving l00g of acid in 95% EtOH (700ml), adding to H20 (600ml) and cooling. Filter, dry in a vacuum (over KOH or CaS04) store in an 02-free atmosphere. h in EtOH nm(1og E): 2343(4.3), 241(4.4), 2505(4.2), 235(4.34) and 240(4.36). [Org Synth 23 1 1952 ; JACS 35 3136 1949; M 116 1345 19851.