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This spreadsheet calculates the amount of precursors that you need to produce a
certain amount of chlorine dioxide solution (CDS) of a certain concentration.
CDS
300
ml of
3500
ppm plus an allowance of
5
%
3 g NaClO₂ solution or powder
67,45
1,1025
90,44
1,597
2,92
g of
80%
concentration—without additives?
1,64
36,45797
1,237
1,38
ml of
37%
concentration
29,6%
1,18
99,0%
insert the concentration and tick the box if it is clear that this is
actual
NaClO₂
content
rather
than the proportion of technical grade power used. 22
,
4
%
is standard, being 28
%
W/W
of
powder that is 80
%
pure NaClO₂
…
but other concentrations are sold.
fi ll in the data in the red cells, the results will be shown in the green cells
use these quantities of precursors to produce the desired amount and concentration of CDS
use the loss offset adjustment to compensate for inevitably vented gas
5NaClO₂ + 4HCl
→
4ClO₂ + 5NaCl + 2H₂O
cells F7 & F10 show the approximate specifi c gravity (density) of the stock solutions
cells F6 & F9 show the number of ml of the stock solutions necessary to produce one gramme of ClO₂
cell F5 is the number of grammes of ClO₂ in the fi nal target solution
cell F11 is the proportion of the total volume that is the target solution, ie not the reagents
cells E5, E6 & E9 are [hidden] values for the molecular masses of ClO₂, NaClO₂ and HCl
if bright red cell appears at E10, extreme caution is advised as concentrations may cause aggressive reactions
enter volume of CDS desired
3000 ppm is standard; 3500 and 4000 are also used
this offsets for losses
Stock solutions
sodium chlorite—NaClO₂
calculated amount needed
hydrochloric acid—HCl
calculated amount needed
insert the concentration of acid
please do not
delete, overwrite or
alter the equations
in the green cells!
If this spreadsheet is not functioning as expected, please email
realising.potential@icloud.com
