I second this. Sulfuric acid was my entire job for eleven years. It would definitely do the job, but it's not as simple as dropping a body into a drum with it. You'd need a lot more of it, heat, pumps for a circulation system, filtration for the parts that it won't eat through right away (hair and fingernails, possibly teeth). There are much more efficient ways to get rid of a body. Especially on an island.
I second this. Sulfuric acid was my entire job for eleven years. It would definitely do the job, but it's not as simple as dropping a body into a drum with it. You'd need a lot more of it, heat, pumps for a circulation system, filtration for the parts that it won't eat through right away (hair and fingernails, possibly teeth). There are much more efficient ways to get rid of a body. Especially on an island.