Nitric As

Refer to Figure GISa (from Ref 14c) for a flow chart of a typical acid prepn plant involving on site tnanuf of nitric, purchase of 65% oleum, sulfuric, and recycling of spent acid the figures are for MA for MG prepn and would be dfferent for NC, TNT, etc. The pre- or semi-mix consists of a blend of 97% nitric and 40% oleum, sulfuric (contg 6% nitric as antifreeze). Analysis of the pre-mix gives the values for the variables in the two formulas. 

Note Nitric acid in oleum can also be detd by nitrometer method, which gives TNN Abbreviations AN—actual nitric (unbound acid which actually participates in nitration), ANN-.actual nitric as nitric, ANS- actual nitric as sulfuric,N-so—nitroso(nitrosyl-sulfuric acid, HNOS04), AS—actual sulfuric,... 

TAS—total acidity as sulfuric,TNN—total nitric as nitric.TNS-total nitric as sulfuric,... 

Dehydrating Value of Sulfuric (DVS) in Mixed Acids. In the process of nitration of aliphatic alcohols (such as glycerin, glycols, etc), it is necessary to know the exact composition of the nitrating acid. In the analysis of such acid, known as mixed acid (MA), the vollowing values must be detd TA (total acidity), TS (total sulfuric), IN (total nitric), AS (actual sulfuric),... 

Tolyltetrazolonimide. See under Amino-tolyltetrazoles A265-R Total Acidity as Nitric Acid A88-R Total Acidity as Sulfuric Acid A89-L Total Actual Acidity ApO-L Total Nitric as Nitric Acid A88 A89 Total Sulfuric as Sulfuric Acid A89 Transannular Photoperoxide of Anthracene A458-R... 

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