ACI-1 is a medium temperature acid corrosion inhibitor suitable for use in 15% HCl, 28% HCl and mixtures of HCl/HF.  Oil Pro ACI-1 exhibits excellent solubility and is effective OilPro in inhibiting corrosion on low alloy steels, such as N-80, L-80 and J-55, and corrosion resistant alloys, such as 13Cr.  Oil Pro ACI-1 is effective to 375°F using standard corrosion inhibitor intensifiers.