1. Di-isooctyl adipate was synthesized with hexane diacid and 2-ethyl hexanol as raw materials and p-toluene sulphonic acid as the catalyst.

2. With cheap butyl diacid and chloroacetic acid as starting material, butane-tetracarboxylic acid (BTCA) was synthesized through rational synthesis route.

3. The invention relates to various aromatic diacid ester acetal polymers and a synthesis method of the aromatic diacid ester acetal polymers.

4. Diacid has been got using diethylene glycol as decomposition agent of adduct.

5. So far, we have synthesized pentadecane diacid , which is a very important intermediate product during preparing muscone.

6. Acetanilide and hexane diacid, potassium hydrogen phthalate could improve PVC crystallinity.

7. So far, we have synthesized diacid, which is a very important intermediate product during preparing muscone.

8. The production of glyphosate from orthophosphorous acid and pure diacid substituting for dilycolamidic acid was described, and the process was improved with high yield.

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9. Because of the rapid reaction in soil and eventual disappearance of XDE 537, ACID and DIACID, it was suggested that the herbicide Clincher is non persistent in the environment.

10. The result showed that content of wax and quantity of diacid in fatty acid increased as the fruit, s maturation.

11. The utility model relates to a crystallizer for hexane diacid production equipment, and belongs to a chemical device.