hydrofluosilicic acid वाक्य
उदाहरण वाक्य
मोबाइल
- Like other common water additives such as chlorine, hydrofluosilicic acid and sodium silicofluoride decrease pH and cause a small increase of corrosivity, but this problem is easily addressed by increasing the pH . Trace levels of arsenic and lead may be present in fluoride compounds added to water; however, concentrations are below measurement limits.
- Like other common water additives such as chlorine, hydrofluosilicic acid and sodium silicofluoride decrease pH and cause a small increase of corrosivity, but this problem is easily addressed by increasing the pH . Trace levels of arsenic and lead may be present in fluoride compounds added to water, but no credible evidence exists that their presence is of concern : concentrations are below measurement limits.
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