| 摘要 |
Disclosed is an aqueous composition having viscosity from 1 to 100 cP at 20 °C, said composition comprising: (i) an oligodynamic metal or ions thereof; (ii) a chelating agent; and, (iii) free alkali less than 1 wt%, wherein said composition comprises 0.01 wt% to 2 wt% of a salt of an organic acid; pH of the composition is from 9 to 12 and molar ratio of said oligodynamic metal to said chelating agent is 1:0.25 to 1:10. The composition provides a robust solution for technical problems of discolouration and instability. |
