(r) -lactate le cas 10326-41-7
D-lactic acid ke k'hemik'hale. Foromo ea molek'hule ke C3H6O3. D-lactic acid 90% ke high optical (chiral) lactic acid e hlahisoang ke theknoloji ea biological fermentation e sebelisang lik'habohaedreite tse tšoanang le tsoekere e le lisebelisoa tse tala. Sehlahisoa se felileng sa D-lactic acid ke mokelikeli o mosehla o hlakileng o se nang 'mala kapa o bobebe o hlakileng o nang le tatso e bolila hanyane; ke hygroscopic, 'me tharollo ea metsi e bontša karabelo ea asiti. E ka tsoakoa ka bolokolohi le metsi, ethanol kapa ether, 'me ha e qhibilihe ka chloroform.
| Ntho | Standard |
| Ponahalo | metsi a se nang mmala |
| Assay w% | E SE ka tlase ho 95.0 mme eseng ho feta 105.0 ea mahloriso a ngotsoeng |
| Bohloeki ba stereochemical % | ≥99.0 |
| Mmala APHA | ≤25 |
| Methanol w% | ≤0.2 |
| Aene(Fe) w% | ≤0.001 |
| Chloride(joalo ka CI) w% | ≤0.001 |
| Sulphate (joalo ka SO4w% | ≤0.001 |
| Limetale tse boima(joalo ka Pb) w% | ≤0.0005 |
| Boima ba 'mele (20 ℃) g/ml | 1.180-1.240 |
E sebelisoa haholo ha ho etsoa le ho etsa thepa ea asiti ea polylactic le motsoako oa lithethefatsi tsa chiral le li-intermediates tsa chefo e bolaeang likokoanyana.
Metsoako ea Chiral
Li-ester tsa lactic acid tse sebelisang D-lactic acid e le lisebelisoa tse tala li sebelisoa haholo tlhahisong ea litlolo tse nkhang hamonate, litlolo tsa maiketsetso tsa resin, likhomaretsi le liinke tsa khatiso, hape le tlhoekisong ea lipeipi tsa peterole le liindasteri tsa elektroniki. Har'a tsona, D-methyl lactate e ka kopanngoa ka mokhoa o ts'oanang le metsi le li-solvents tse sa tšoaneng tsa polar, e ka qhala ka ho feletseng nitrocellulose, cellulose acetate, cellulose acetobutyrate, joalo-joalo le li-polar tse fapa-fapaneng tsa polar synthetic, 'me li na le ntlha ea ho qhibiliha. Ke mokelikeli o motle haholo o nang le ntlha e belang e phahameng ka lebaka la melemo ea eona ea mocheso o phahameng le sekhahla sa mouoane o liehang. E ka sebelisoa e le karolo ea motsoako oa motsoako ho ntlafatsa ts'ebetso le ho kopanya. Ntle le moo, e ka sebelisoa e le thepa e tala bakeng sa meriana, chefo e bolaeang likokoanyana le li-precursors bakeng sa ho kopanya metsoako e meng ea chiral. , Ea Mahareng.
thepa e senyehang
Lactic acid ke thepa e tala bakeng sa bioplastic polylactic acid (PLA). Thepa ea 'mele ea thepa ea PLA e itšetlehile ka sebopeho le litaba tsa D le L li-isomers. Racemate D, L-polylactic acid (PDLLA) e entsoeng ho tloha racemic D, L-lactic acid e na le sebopeho sa amorphous, 'me thepa ea eona ea mechine e futsanehile, nako ea ho senyeha e khutšoanyane,' me ho fokotseha hoa etsahala 'meleng, ka sekhahla sa ho fokotseha. 50%. % kapa ho feta, ts'ebeliso e na le moeli. Likarolo tsa ketane tsa L-polylactic acid (PLLA) le D-polylactic acid (PDLA) li lula li hlophisoa, 'me crystallinity ea bona, matla a mochine le ntlha ea ho qhibiliha li phahame haholo ho feta tsa PDLLA.
250kg / moropa
(R) -Lactate
