| prov:value
| - Examples,of suitable solvents include: hydrocarbons, such as benzene, toluene, xylene and heptane; halogenated hydrocarbons, especially halogenated aliphatic hydrocarbons, such as methylene chloride and chloroform, ethers; such as dioxane and 1,2-dimethoxyethane; esters, such as ethyl acetate and butyl acetate; amides, such as N,N-dimethylformamide and N,N-dimethylacetamide; and sulfoxides, such a
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