How does industrial soda ash remove moisture?
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As mentioned, industrial soda ash, that is, sodium carbonate, will react when measuring moisture using the Fischer reagent method, so this method cannot be used. However, the moisture content is still required to be less than or equal to 0.8%. Is there any other method for measuring moisture?
Just bake it for two hours between 105 degrees and 110 degrees.
This post was last edited by qugd on 2010-2-28 12:03 Why should we use the Karl Fischer method to determine the moisture content of soda ash? Totally unnecessary. Accurately take a certain amount of sample into a crucible, bake the sample at 110C to a constant weight, and use the difference subtraction method to determine the water content with very high accuracy. Water will be generated from sodium carbonate during the Karlsson reaction, which will seriously interfere with the measurement.
What is measured in the oven is "loss on drying", which is two different concepts from the moisture in soda ash. Personally, I think it.
Weight loss on drying is determined by the oven method. What evaporates is water, otherwise what else would it be?
Just dry and test the moisture! High accuracy! I am using this method now, and during the industrial analysis process, this method is generally used for some materials where the accuracy of content measurement using specific gravity or titration is not high and the results fluctuate greatly!
Does the poster know what the 5th and 6th floors said? Learn the method well.
The dry weighing method is simple, practical and fast. Adapt to your specimen!
7# qugd is to use a weighing bottle to weigh a certain sample between 105 and 110 degrees and bake it until the weight no longer decreases. See how much the weight has decreased. The less weight is the moisture. Divide the moisture and the weight of the sample previously weighed to get the moisture content.