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Q:
how can we find out the percetage of available chlorine in sodium hypochlorite of 15%purity?
A
:
Standard practice is to use an iodometric titration. Potassium iodide is added to the sodium hypochlorite solution, it is acidifi...
Q:
Do you recommend a dedicated perchloric acid hood with a washdown system for performing titrations using a 0.1 N solution of perchloric acid in glacial acetic acid at room temperature?
A
:
No. The only time you need a dedicated perchloric acid hood is when perchloric acid is heated to the point where it has an apprec...
Q:
Is the perchloric acid 70%, 70 wt% or 70 vol%?
A
:
The concentration of perchloric acid is determined on a w/w basis (70 g perchloric acid in 100 g of solution).
Q:
Can we prepare dilutions of AMCO turbidity standards? If so, are there any special techniques or precautions we need to be aware of?
A
:
AMCO turbidity standards generally cannot be diluted because of the nature of the turbidity scale. The scale was developed using ...
Q:
Please elaborate what is the difference between the In-Spec UV Standard #1 through #8, #20, and #30. I am trying to determine if these will meet our needs.
Thanks you.
A
:
The difference in the various In-Spec Standards is the concentration level of the solution. As the value increases the absorbance...
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