1 entry 1 source
Sludge Acid
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
Impure dark-colored sulphuric acid that has been used in the refining of petroleum.
1 entry 1 source
Part of speech: noun (n.)
Impure dark-colored sulphuric acid that has been used in the refining of petroleum.