Packed column for analysis of paraformaldehyde

Trioxane contains impurities such as formaldehyde, water, methanol, methyl formate, methylal, dioxymethylene dimethyl ether, etc., all of which have a certain influence on the bulk polymerization reaction. Therefore, the establishment of a rapid analysis method for trace impurities in refined paraformaldehyde is of great significance for guiding the refining and polymerization operations of paraformaldehyde. Although the trace water in refined paraformaldehyde can be determined by Karl Fischer method.
Tengzhou Haohan Chromatography Instrument Technology Service Co., Ltd. adopts a trioxane analytical packed column to quickly and quantitatively determine trace water, methanol, formaldehyde, methylal and other impurities in refined trioxane by gas chromatography. When the impurity content is in the range of 10～1000ppm, the analysis error is ±6.2～14.0%. This method is suitable for routine control analysis of finished products in the refining operation of trioxymethylene.

Determination spectrum of trioxane analysis packed column: