A collection of Tips
There is a bit of everything, it's up to you to sort it out. And do not hesitate to tell me your tips, to share them.
And finally, some tips to make it easier for you.
Tip #1
If your cupboard is in a cold room, you can also put the jar in front of a window so that it is warmed by the sun, provided you put it in a box to avoid the light.
Tip #2
In order to stabilize the reactor (the small glass) in the jar, you can use nylon electric cable ties to make a kind of triangle around the foot, cutting it so that it is a little compressed. times in the jar (see photo). In this way the reactor will not move too much when handling the jar.
Cable ties
Detail
Tip #3
Mark your different utensils with colors. For example: Blue for Sodium Chlorite, Red for Hydrochloric Acid and Blue/Red for CDS.
Color marking
Tip #4
If you don't have an "Amber" bottle, you can put self-adhesive aluminum on normal bottles or simply wrap them with aluminum foil. This will protect the contents from light as well.
Tip #5
How to read graduated cylinders.
The eye must be at the height of the liquid in order to avoid parallax errors.
Tip #6
How to read syringes.
The convexity of this rubber in no way reduces the volume of the liquid because it is compensated by an identical convexity below the zero mark.
Tip #7
If you are a good handyman, you can adjust the angle of the fittings of your jars to optimize the pressure on the seal and thus reduce the risk of leaks.
Tip #8
Test result (the concentration in ppm)
Normally to test the concentration of CDS we use reactive strips, but since these can only measure up to 500ppm, to test 3000ppm, we must dilute the solution and then multiply the value determined by the same factor.
There are several ways to perform this operation using different dilution factors:
Dilution by 10. To do this, we add 9 ml of distilled water to 1 ml of the CDS stock solution. The color of the strip should be between 250 and 500ppm, or about 300ppm, which multiplied by 10 will give us the concentration of our solution at 3000ppm.
Dilution by 6. Here we add 5 ml of distilled water to 1 ml of the stock solution. The color should be at 500ppm, which multiplied by 6 will give us the concentration at 3000ppm.
Dilution by 30. Here we add 29 ml of distilled water to 1 ml of the stock solution. The color should be at 100ppm, which multiplied by 30 will give us the concentration of our solution at 3000ppm.
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Strip color scale.
