Sodium Chlorite powder dosage

Imagine the following scenario: a good friend of yours is on a expedition in the jungle and he has in his backpack a small container of Sodium Chlorite powder. A member of his group has contracted malaria. Your friend has no scale, no measuring device of any kind, no dropper; just the SC powder. He calls you and ask you how much of the powder in water per dose. What would be your answer?

I go first:

In the following infosheet on how to make liquid MMS from sodium chlorite powder:
mmsinfo.org/infosheets/What_is_MMS_and_How_to_Make_it.pdf

1 liter of liquid MMS contains 341.6 grams of sodium chlorite powder.
My objective is to find out how much sodium chlorite powder in 1 drop of liquid MMS.
So if 1000ml of liquid contains 342grams of powder and assuming 1ml=20drops; 1ml contains 342mg of powder therefore 1 drop contains roughly 17mg of SC powder.
Searching the web I find that 1gr of salt contains roughly 15 grains. So 17mg of salt is rouhgly 0.3 grain.
So 3drops of MMS is roughly 1 grain of sodium chlorite powder.
My advice would be to use 2 to 3 grains of powder per dose.

What do you think?

Are NaCLO2 grains of powder of equal size and weight? You could weigh say, 1 gram of powder and count the grains. Do that several times to get an average count.

I have never seen SC powder, only flakes.

I am assuming the sc comes as powder similar to salt because crystals (similar to salt), form around the cap of my bottle after a while. If the sc comes in flakes, it will make it harder to be precise.
Thanks

That could be a way to get SC "grains." Pour some MMS into a small glass container and wait for the water to evaporate. The crystals left behind could be harvested. But, this could be dangerous, as manipulating those grains could cause a minor explosion, as I recall reading somewhere.