| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to a liquid acidic composition for cleaning solid surfaces, having pH from 2.1 to 2.4 and containing formic acid, citric acid, oxalic acid and an alkaline substance. The present invention also relates to a method of cleaning a solid surface or an object (versions) and to use of an alkaline substance in a liquid acidic composition for cleaning solid surfaces.EFFECT: obtaining a liquid acidic composition for cleaning solid surfaces, which provides good scale removal characteristics and is not corrosive.18 cl, 23 ex, 6 tbl |
