| abstract |
Provided is a stable water treatment agent composition which contains a bromine-based oxidant, a sulfamic acid compound and an azole compound, and which is reduced in the formation of a precipitate even if stored outdoors or the like where the water treatment agent composition is irradiated with light such as sunlight. A water treatment agent composition which contains a bromine-based oxidant, a sulfamic acid compound, an azole compound, and at least one of a surfactant and an N-vinylpyrrolidone monomer-containing polymer, and wherein the surfactant is at least one substance selected from among amphoteric surfactants, anionic surfactants and nonionic surfactants. |