Raw Materials. The main component of brass is copper. The amount of copper varies between 55% and 95% by weight depending on the type of brass and its intended use. Brasses containing a high percentage of copper are made from electrically refined copper that is at least 99.3% pure to minimize the amount of other materials.
Principal Scientist in Boston, Massachusetts Salary. A Principal Scientist in Boston, Massachusetts earns an average salary of $123,925 per year.
How much does a Chemical Engineer make in Boston, MA?The average salary for a Chemical Engineer in Boston, MA is $74,852. That is 2.8% lower than the national median salary of $77,040.