L-Malic acid Cas: 97-67-6
| Nọmba katalọgụ | XD91143 |
| Aha ngwaahịa | L-Malic acid |
| CAS | 97-67-6 |
| Usoro ihe omimi | HOOCCH (OH) CH2COOH |
| Ibu molekụla | 134.09 |
| Nkọwa nchekwa | Ambient |
| Koodu tarifu akwadoro | 29181998 |
Nkọwapụta ngwaahịa
| Ọdịdị | White crystalline ntụ ntụ |
| Asay | 99% nkeji |
| Okpomọkụ nchekwa | +20 Celsius C |
| Ebe mgbaze | 101-103 Celsius C (ọkụ) |
| Ntughari pụrụ iche | -2º (c=8.5, H2O) |
| Njupụta | 1.60 |
| Ntụgharị uche | -6.5 Celsius (C=10, acetone) |
| ebe mgbari | 220 Celsius C |
| Solubility | H2O: 0.5 M na 20 Celsius C, doro anya, enweghị agba |
| Mmiri solubility | soluble |
Njirimara anụ ahụ na kemịkalụ nke L-malic acid
Malic acid, nke a makwaara dị ka 2-hydroxysuccinic acid, nwere stereoisomers abụọ n'ihi otu carbon carbon asymmetric na molecule.N'okike, ọ dị n'ụdị atọ, ya bụ D-malic acid, L-malic acid na ngwakọta DL-malic acid.Crystal ọcha ma ọ bụ kristal ntụ ntụ, ike hygroscopicity, mfe soluble na mmiri na ethanol.Nwere karịsịa ụtọ utoojoo uto.A na-ejikarị malic acid eme ihe na nri na ụlọ ọrụ ọgwụ.
A na-eji L-malic acid eme ihe
【eji】 A na-eji emeputa esters;eji mee ihe na mgbagwoju anya na ihe ndị na-ekpo ọkụ.Dịka ndokwa nke mba m GB 2760-90 si dị, enwere ike iji ya na ụdị nri ọ bụla.Dị ka onye na-ahụ maka utoojoo, enwere ike iji ya kama citric acid (ihe dịka 80%), karịsịa maka jelii na nri ndị sitere na mkpụrụ osisi.Ngwaahịa a nwere ọrụ nke ịnọgide na-agba agba nke mkpụrụ osisi eke, a pụkwara iji ya mee ihe dị ka ihe enyemaka mmịpụta maka pectin, onye na-ahụ maka ịkwalite uto yist, maka ịmepụta soy sauce na mmanya na-enweghị nnu, na-eme ka uto nke pickles dị mma, na ihe oriri. emulsion stabilizer maka margarine, Mayonezi, wdg.A na-eji ya eme ihe dị iche iche na-echekwa ihe, seasonings na ihe mgbakwunye ndị ọzọ.
(1) Ụlọ ọrụ nri: A na-eji ya na-edozi ma na-edozi ihe ọṅụṅụ, igirigi, ihe ọṅụṅụ mkpụrụ osisi, a pụkwara iji ya mee ihe na-emepụta swiiti, jam, wdg. Ọ nwere mmetụta antibacterial na antiseptik na nri.Enwere ike iji ya dozie pH nke yoghurt gbaa ụka ma wepụ tartrate na ime mmanya.
(2) Ụlọ ọrụ ụtaba: Mwepụta nke malic acid (dị ka esters) nwere ike imezi ụtọ ụtaba.
(3) Ụlọ ọrụ na-emepụta ọgwụ: Ụdị mbadamba na sirop niile nwere malic acid nwere ike ịmị mkpụrụ, nke na-enyere aka ịmịnye na mgbasa n'ime ahụ.
(4) Ụlọ ọrụ kemịkalụ kwa ụbọchị: Ọ bụ ezigbo ihe na-eme ka ọ dị mgbagwoju anya na onye na-ahụ maka ester.A na-eji ya eme ihe n'ụdị ncha nha nha, nha nha mbadamba mbadamba nkume, ihe na-esi ísì ụtọ nke sịntetik, wdg. A pụkwara iji ya mee ihe dị ka akụkụ nke deodorant na detergent.
