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Cleaning used solvent with water
- Thread starter w0mbat
- Start date
kemist
John
Yeah it`s pretty much wwhat ILPT does. Say if he has limo after vinegar salting, he rinse the limo (after separation of vinegar and emulsion if any) with 2/3rd volume of deionized water once, then 2-3 times with 10-20 % solution of Na2CO3 then with deionized water twice and then he dried it with anhydrous MgSO4.
He doesn`t reuse limo more then 4-5 times because he read that d-limonene was found to be a sensitizer after prolonged exposure to air.5 main oxidation products of d-limoncne were identified. (R)-(–)-carvone and a mixture of cis and trans isomers of (+)-limonene oxide were found to he potent sensitizers, while no significant reactions were obtained m the animals induced with 8 mixture of cis and trans isomers of (–)-carveol. It can be concluded that air oxidation of d-limonene is essential for its sensitizing potential, and that potent allergens are created.
He would reuse other solvent like tolulene more times cos he think tolulene is more stable, but he hasn`t got any .
He doesn`t reuse limo more then 4-5 times because he read that d-limonene was found to be a sensitizer after prolonged exposure to air.5 main oxidation products of d-limoncne were identified. (R)-(–)-carvone and a mixture of cis and trans isomers of (+)-limonene oxide were found to he potent sensitizers, while no significant reactions were obtained m the animals induced with 8 mixture of cis and trans isomers of (–)-carveol. It can be concluded that air oxidation of d-limonene is essential for its sensitizing potential, and that potent allergens are created.
He would reuse other solvent like tolulene more times cos he think tolulene is more stable, but he hasn`t got any .