WAN), DSL model or cable modem. Our selectable reporting. path feature allows the radio to be configured for a single or. dual path solution as well as the appropriate supervision inter-. vals based on NFPA 72 requirements. (See diagram below for. selectable paths and supervision timing intervals.) Features.
Sulfuric acid is the most abundant product of the chemical industry. It is used in the refining of metals and in the manufacture of a wide variety of substances. It is used for the pickling of steel to retard corrosion, in the refinement of petroleum, and in the manufacture of fertilizers.
Uses of sulfuric acid. By far the largest amount of sulfuric acid is used to make phosphoric acid, used, in turn, to make the phosphate fertilizers, calcium dihydrogenphosphate and the ammonium phosphates. It is also used to make ammonium sulfate, which is a particularly important fertilizer in sulfur-deficient.ulfuric acid. Sulfur trioxide reacts with water and the reaction can be expressed as: However, water itself cannot be used for absorption as there is a large temperature rise, and a sulfuric acid mist is formed, which is difficult to handle. Instead, sulfuric acid of about 98% concentration is used.