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Wash the beverage filling machinery with how much is the concentration of acid and alkali should be how to allocate?

by:Xinmao     2021-04-11
Wash the beverage filling machinery with acid and alkali concentration and the mixing way is as follows: the lye concentration determination of 1, 10 ml lye in 250 ml beaker triangle, add a few drops of phenolphthalein indicator, the pink after blending solution. With 0. 1 mol/L standard solution titration to pink, just disappear, and record the consumption volume of HCL solution, NaOH, for example: the concentration of NaOH solution = ( 40*V*C( HCL) ) / ( 1000 * 10) * 100% v - — The volume of the consumption standard of HCL solution ( 毫升) C( HCL) — — Standard HCL solution concentration of the acid concentration determination of 1, 10 ml acid in a 250 ml bottle triangle, add a few drops of phenolphthalein indicator, after blending solution is colorless. With 0. 5 mol/L standard NaOH solution titration to the samples, just show red. Record the consumption volume of NAOH solution, the In the case of HNO3) The concentration of the HNO3 solution = ( 63*V*C) /( 1000 * 10) * 100% v - — The volume of consumption of NAOH standard solution, 毫升) C ( HCL) — — The concentration of the standard NAOH solution
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