Vitriol brown oil

SYNS ACIDE SULFURIQUE (FRENCH) ACIDO SOLFORICO (ITALIAN) BOV DIPPING ACID HYDROOT MATTING ACID pOT) NORDHAUSEN ACID pOT) OIL of VITRIOL pOT) SCHWEFEL-SAEURELOESUNGEN (GERMAN) SPENT SULFURIC ACID pOT) SULPHURIC ACID VITRIOL BROWN OIL VITRIOL, OIL OF pOp ZWAVELZUURO-PLOSSINGEN pUTCH)... 

Synonyms cas 7664-93-9 vitriol brown oil oil of vitriol hydroot dipping acid nordhausen acid ... 

Matting acid Nordhausen acid Oil of vitriol Sulphuric acid Vitriol brown oil Vitriol, oil of... 

Dipping acid Matting acid Nordhaausen acid Spent sulfuric acid Schwefelsaureloesungen Vitriol brown oil Zwavelzuuroplossingen... 

BOV brown oil of vitriol (tech sulfuric acid) and Industrial Reports (US Dept of Commerce)... 

When treating of the commencement of this process, the retort was directed to be filled with cold brown oil of vitriol it was supposed in this oaao that the retort was newly starting but. as one charge is now supposed to have been worked off, it will be more or less warm, and tho introduction of cold vitriol at thie June-... 

The separation of the elements from metals is a process in which you should provide yourself with good apparatus, and with experienced manipulation and workmanship. First make an aqua fortis thus take of alum, vitriol, sal-nitri, equal parts, distil to a strong aqua fortis, return that to the residue and distil a second time in a glass flask. Dissolve in this silver and afterwards dissolve in it sal ammoniac. After this is done take the metal in thin plates and dissolve it in the water. When that has taken place separate it in the water bath (balneo mar is), pour it over again until an oil is found at the bottom from gold almost brown, from silver almost bluish, from iron red to almost black, from mercury quite white, from lead lead-colored, from copper quite green, from tin, yellow. 

The pre.sence of nitric acid in a liquid is best ascertained by adding pure oil of vitriol, and then a drop or two of solution of green vitriol. If nitric add be present, a red or brown colour will appear where the two liquids meet and by this test of nitric acid may be detected. 

Another of the speculative pigments suggested by Salter (1869). He describes it as follows When a duly proportioned mixture of gallic acid and oil of vitriol is carefully and gradually heated to 140 , a viscid wine-red hquid results. If this be poured into cold water, after cooling, a heavy brown-red granular precipitate is formed. ... 

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