Alkaline detergent composition for use on hard surfaces

An alkaline detergent composition for hard surface, comprising:

• an alkaline agent (component A);
• a nonionic surfactant (component B);
• a chelating agent (component C);
• water (component D);
• at least one carboxylic acid compound (component E) selected from the group consisting of compounds represented by general formula (1) and general formula (2) below;
• and
• at least one anionic surfactant (component F) selected from the group consisting of surfactants represented by general formula (3) and salts thereof, where the content ratio [component E (weight %)/component B (weight %)] is 1/1.5-15/1,
• the content ratio [component F (weight %)/component B (weight %)] is 10/1-1/5, and
• a pH at 25° C. is 12 or greater:
• R1—O-(EO)n—CH2COOH (1)
• in general formula (1), R1 is a linear or branched alkyl group having a carbon number of 4 to 8, EO is an oxyethylene group, the character n represents an average number of added moles of EO which meets 1≦n≦10;
• R2COOH (2)
• in general formula (2), R2 is a linear or branched alkyl group having a carbon number of 4 to 10;
• in general formula (3), R3 is a linear or branched alkyl group having a carbon number of 8 to 18.