Klason lignin content in wood was determined according to Runkel and Wilke (21) using 72 percent sulfuric acid and 40 percent hydrobromic
M2 EQUITYBITES-October 4, 2010-Albemarle Corp to hike elemental bromine and hydrobromic
acid prices(C)2010 M2 COMMUNICATIONS http://www.m2.com
acid (40%, 20.0 ml, 0.10 mol) was added into the mixture and refluxed at 120[degrees]C for 72 h.
This study aims at exploring the transport properties of hydrochloric acid and hydrobromic
acid in a dipolar fluoropolymer, poly(ethylene-co-chlorotrifluoroethylene) (ECTFE) (two grades), and a hydrogen bonding fluoropolymer, poly(vinylidene fluoride) PVDF (four grades) (Table 1).
The typically used mineral acids are sulfuric acid [30-33, 37, 38, 40-43, 56, 57], hydrochloric acid [58, 59], phosphoric acid [35, 60], hydrobromic
acid , and their mixed acids [34, 36].
hydrochloride (0.5 g, 1.49 mmol) was dissolved in aqueous hydrobromic
Accordingly, iterative use of commercially available vinylmagnesium bromide (2), 47% hydrobromic
acid, and methyl acetoacetate (3) enables us to prepare 1 from all commercially available 2-hexanone (4, Fig.