sulfuric acid 99 resistant flexible hose in germany
It contained appropriate quantities of: 99.5 % glacial acetic acid (AC), 30 % solution of hydrogen peroxide (HP) and 96 % sulfuric acid (SA). In the second step of the synthesis, a reaction system containing 99 % diethylene glycol (DEG) and sulfuric acid as a alyst was used to open the epoxy rings.
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