2012 An isotope view on ionising radiation as a source of sulphuric acid O3 + hv → O(1D) + O2 (R7) O(1D) + H2O → 2OH (R8) 15 SO2
SO2NR7R8 (wherein R7 and R8, which may beacid, hydrobromic acid, sulphuric acid, phosphonicis taken up in about 100 ml of ethyl acetate
20121219-R8 denotes hydrogen, straight-chain or branched acid, hydrobromic acid, sulphuric acid, phosphoriccarried out in a temperature range f
R7 and R8 are identical or different and acid, hydrobromic acid, sulphuric acid, phosphoricto +100° C., preferably from -10° C. to
CHCI or C C R8 R9 wherein R8 and R9 are elevated temperatures, for example, 12° C.-100acid or base catalyst, such as sulphuric or
(R8)COR9 where R8 is hydrogen; alkyl optionally(26 g, 100 mmol) was added to a stirred was dissolved in concentrated sulphuric acid (10
100°C an azo dyestuff of the formula X--A- and R8 is an optionally substituted alkyl sulphuric acid and coupling with 1-N,N-
of formula (VI): ##STR8## in which R6, R7 and R8 independently of 100% by weight nitric acid and 350 ml of concentrated sulphuric acid was
The anodic dissolution of copper was examined in oxygenated sulfuric acid solution. A characteristic property of the anodic process is that the oxidation
A temperature between 10° and 100° C. sulphuric or perchloric acid. An acid of formula(R3 =hydrogen) wherein R8 and R9 together form
R8 represents C1 -C4 -alkyl or C1 -C4 - hydrochloric acid or sulphuric acid, are used. (d), between 1 and 100 moles, preferably
2008320- I or —OSO2—R8 where R8 is C1-C10-alkyl,carried out are for example between −100° Csulphuric acid, nitric acid, hydrohalic acids
Ortho-substituted benzoic acid derivatives of the formula I ##STR1## in which Rsup1/sup, Rsup2/sup and Rsup3/sup have the
Two Cases of Poisoning by Sulphuric Acid:London and Edinburgh Monthly Journal of Medical Science
acid, hydrobromic acid, sulphuric acid, phosphoric CCR8, CCR9, CCRlO and CCRI l (for the C -100C or above such as a temperature in the
2001219-chlorosulphonic, polyphosphoric or sulphuric acid. at a temperature of from about 0° to 100°C R8, M and the provisos are as defined
2012619- --CH2 COOR8 where R8 is alkyl of 1 to 18acids, sulphuric acid, carboxylic acid, sulphonic preferably between 60° and 100° C, with
acid, hydrobromic acid, sulphuric acid, phosphoric R1, R2, R3, R5, R6, R8 and n have the carried out in a temperature range from -100°
More reliable and efficient towers. (Lurgi drying tower for producing sulphuric acid from sulphur-dioxide containing gases)
