The present invention relates to a detergent composition for hard surfaces, the detergent composition containing a
fluoride, and provides: a detergent composition for hard surfaces, the composition achieving both
corrosion prevention of a hard surface and water
stain removal performance under mild conditions in a weak acidic to neutral region; and a method for cleaning a hard surface using the detergent composition for hard surfaces. Disclosed is a detergent composition for hard surfaces, the detergent composition containing (a) a
fluoride (hereinafter referred to as a component (a)) and (b) an
organic acid or a salt thereof. The content of the component (a) is 4 mM to 240 mM inclusive in terms of
fluorine atoms, and the pH at 25°C is 4.0 to 6.5 inclusive. The
hydrogen fluoride concentration [HF] in the detergent composition for hard surfaces calculated from (formula 1) is 0.25 mM to 0.9 mM inclusive. (Formula 1) 7.08 × 10-4 = [F-][H+] / [HF] [F-]: the ionized
fluorine content (mM) in the component (a) contained in the detergent composition for hard surfaces [H+]: the
hydrogen ion concentration (mM) calculated from the pH of the detergent composition for hard surfaces at 25°C 7.08 × 10-4: the acid
ionization constant of
hydrogen fluoride at 25°C