Pengaruh penambahan inhibitor natrium sulfit terhadap laju korosi baja karbon UNS10180 pada lingkungan NaCL 3,5% dengan metode polarisasi menggunakan alat rotating cylinder electrode (RCE) pada keadaan fluida statis (0 RPM) dan fluida bergerak (1000 RPM) = The effect of adding sodium sulfit inhibitor against corrosion rate for corrosion rate of steel UNS 10180 at 3,5% NaCl environment with polarization method using rotating cylinder electrode (RCE) in static fluid (0 RPM) and Moving Fluid (1000 RPM)