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Contact Suppliernitric acid 68 specific gravity nitric acid with formula hno3, is also referred to as spirit of niter or aqua fortis, is a strong corrosive mineral acid. it is a powerful oxidizing agent, and reacts violently with many non-metallic compounds. It also reacts with metals to dissolve them, form metal oxides, etc. 1.general information molecular formula: hno3 molecular weight: 63.0128 cas no.: 7697-37-2 ec no.: 231-714-2 2.applications widely used in the manufacture of ammonium nitrate and other explosives, sodium nitrate potassium nitrate, calcium nitrate, glyoxal, h-acid, nitrobenzene and other nitro derivative dyes and dye intermediates, drugs and pharmaceuticals, pickling of steel and metallurgy, a fiber etc. 3. Specification item industrial grade regent grade gr ar cp hno3 % 55 68 65-68 65-68 65-68 hno2 % 0.2 0.2 -- -- -- chroma max -- -- 20 20 25 residue on ignition(so4) max 0.02 0.02 0.0005 0.001 0.002 oxide(cl)% max -- -- 0.00005 0.00005 0.0002 sulfate(so4)% max -- -- 0.0001 0.0002 0.001 fe % max -- -- 0.00002 0.00003 0.0001 as % max -- -- 0.000001 0.000001 0.000005 cu % max -- -- 0.000005 0.00001 0.00005 pb % max -- -- 0.000005 0.00001 0.00005 4.packaging 25kg/30kg/35kg/250kg drums, 1250kg ibc drums, iso tanks 5. storage and handling proctect.