▁under ▁the ▁names ▁R - 1 4 1 b ▁or ▁H C FC - 1 4 1 b . ▁ ▁Phys ico - chem ical ▁properties ▁▁ ▁It ▁is ▁a ▁non - fl amm able , ▁colour less ▁liquid ▁in ▁atmos pher ic ▁conditions . ▁ ▁The ▁comp ound ▁is ▁very ▁vol atile ▁and ▁its ▁sm ell ▁has ▁been ▁described ▁as ▁" us ually ▁eth ere al ". ▁ ▁References ▁▁ ▁Category : H ydro ch lor of lu or oc ar b ons ▁Category : H al ogen ated ▁sol vent s ▁Category : Re fr iger ants ▁Category : Green house ▁g ases <0x0A> </s> ▁Bere a ▁or ▁B ero ea ▁was ▁a ▁city ▁of ▁the ▁H ellen ic ▁and ▁Roman ▁era ▁now ▁known ▁as ▁Ver ia ▁( or ▁V ero ia ) ▁in ▁Mac ed onia , ▁northern ▁Greece . ▁It ▁is ▁a ▁small ▁city ▁on ▁the ▁eastern ▁side ▁of ▁the ▁Verm ion ▁Mountains ▁north ▁of ▁Mount ▁Olymp us . ▁The ▁town ▁is ▁mentioned ▁in ▁the ▁Act s ▁of ▁the ▁Apost les , ▁where ▁the ▁apost les ▁Paul , ▁Sil as ▁and ▁Tim othy ▁pre ached ▁the ▁Christian ▁g ospel . ▁ ▁Paul , ▁Sil as ▁and ▁Tim othy ▁tra ve led ▁to ▁Bere a ▁by ▁night ▁after ▁fle eing ▁from ▁Th ess al onica , ▁as ▁recorded ▁in ▁. ▁They ▁' im medi ately ' ▁went ▁to ▁the ▁syn agog ue ▁of ▁the ▁Jews ▁to ▁pre ach , ▁and ▁the ▁Bere ans ▁were ▁very ▁accepting ; ▁the ▁writer ▁of