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CAS No. : | 1732-96-3 | MDL No. : | MFCD00082947 |
Formula : | C20H10O10 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | XQBLBHYWXZNCJZ-UHFFFAOYSA-N |
M.W : | 410.29 | Pubchem ID : | 74420 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86% | at 230 - 260℃; for 2 h; Inert atmosphere | A solution of trimellitic anhydride (1.0 mol)192 g was mixed with ethylene glycol (0.55 mol) of 34 g,Nitrogen emptying. In nitrogen holdContinued protection to a temperature of 230-240 ° C,This time will continue to have water distillate,Close to the theoretical amount of water (18 grams) after the distillation,Vacuum 10-15mmHg down to 260 for 2 hours, cooling,Refined with 900-1200 grams of acetone,The intermediate trimellitic anhydride ethylene glycol ester, white powder 176 grams, the yield of 86percent. The intermediate was hydrolyzed with a 5percent aqueous solution of sodium hydroxide,Dilute hydrochloric acid to pH = 1-3,Dried to the final product trimellitic acidEthylene glycol esters,White powder 211.8 g, yield 95percent. |
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