About: http://webisa.webdatacommons.org/258329809

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	X, in which R is an alkyl radical containing from 1 to 20 carbon atoms and X is chlorine or bromine, and magnesium compounds of the formula MgR2 in which R is an alkyl radical containing from 4 to 12 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au