| 摘要 |
The bleaching, washing, &c. compositions having a basis of per-compounds, salts of pyro- and meta-phosphoric acids, and alkaline substances, described in the parent Specification, are modified by replacing the magnesium silicate, added for stabilizing purposes, by other sparingly-soluble or insoluble silicates of the alkaline earth metals, of zinc or of cadmium, added in the ready-formed state.ALSO:The bleaching, washing, &c. compositions having a basis of per-compounds, salts of pyro- and meta-phosphoric acids, and alkaline substances, described in the parent Specification are modified by replacing the magnesium silicate, added for stabilizing purposes, by other sparing-soluble or insoluble silicates of the alkaline earths, of zinc or of cadmium, added in the ready-formed state. |
