Determination of moisture in finished methanol
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The national standards specify that the Karl Fischer method should be used to determine the water content in methanol; can a moisture meter be used instead? Which manufacturer’s moisture analyzer is good? Thank you!
I only know the Karl Fischer method, or chromatography.
Chromatography is very convenient; our laboratory uses it to analyze alcohols
We use a Mettler C30 moisture analyzer, and it works pretty well. It can be considered.
There are many manufacturers of moisture meters in Zibo, Shandong Province; these devices can measure moisture levels ranging from a few hundred ppm to 100%, and their price is around 10,000 yuan.
Our factory uses a Mettler DL38 type moisture meter to measure the moisture content in methanol products; it’s very useful and can be connected to a computer
We usually use moisture measurement to determine water content, and the results are quite accurate
We use the Mettler DL50 automatic titrator, which has many functions beyond just measuring moisture, but it is expensive.
To measure methanol, of course, Karl Fischer is used, with methanol as the base solution.
It can be measured; the moisture meters produced by Jiangsu Jiangfen are quite good. I used instruments from there in the past