L-Leucine
L-Leucine
| Cov ntaub ntawv solubility | Solubility hauv dej: 22.4g / L (20 ° C).Lwm cov solubilities: 10.9g / L acetic acid, me ntsis soluble hauv cawv, insoluble hauv ether |
| Formula hnyav | 131.17 Nws |
| Kev sib hloov tshwj xeeb | + 15.40 Nws |
| Sublimation Point | 145.0 ° C |
| Tej yam kev hloov pauv | + 15.40 (20.00°C c = 4, 6N HCl) |
| Melting Point | 286.0 ° C txog 288.0 ° C |
| Ntau | 500 g |
| Tshuaj npe los yog khoom siv | L-Leucine |
L-leucine yog dawb crystalline lossis crystalline hmoov.Nws yog cov tsis-polar amino acid, me ntsis iab saj, soluble hauv dej, 23.7g / l thiab 24.26g / l ntawm 20 ℃ thiab 25 ℃, acetic acid (10.9g / L), dilute hydrochloric acid, alkali tov thiab carbonate tov, me ntsis soluble nyob rau hauv cawv (0.72g / L), insoluble nyob rau hauv ether, sublimated ntawm 145 ^ R 148 ℃, decomposed ntawm 293-2950c, tshwj xeeb gravity 1.29 (180C), kev sib hloov [a]] D20 yog + 14.5 ^ - + 16.0 (6mo1 / L HCl, C = 1), isoelectric point yog 5.98.
Khoom Zoo raws li: qib Ferment, zoo raws li AJI92, USP38.
Cov xwm txheej Tshuag: Feem ntau khaws 7000-8000KGs hauv Tshuag.
Daim ntawv thov: Khoom noj khoom haus ntxiv.Feem ntau siv rau qhob cij, hmoov nplej.Nws yog tsim los ntawm cov nroj tsuag kev loj hlob txhawb, amino acid thiab infusion npaj.
Nws tuaj yeem siv tau los ua cov tshuaj tsw qab los txhim kho cov zaub mov tsw.
Pob: 25kg / chim
Nws tuaj yeem siv nyab xeeb hauv cov zaub mov.
[pob]: nws tuaj yeem ntim rau hauv hnab ntawv kraft lossis ntawv thoob, nrog cov ntsiab lus ntawm 25kg hauv txhua lub hnab (lub thoob).Nws tseem tuaj yeem ntim tau raws li tus neeg siv xav tau.
[kev thauj mus los]: lub teeb loading thiab lub teeb unloading los tiv thaiv pob puas, hnub thiab nag, tsis muaj tshuaj lom thiab teeb meem.Nws yog cov khoom tsis txaus ntshai.
[Storage]: Cov khoom no yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav, huv si thiab shading ib puag ncig.Nws yog nruj me ntsis txwv tsis pub sib xyaw nrog cov tshuaj lom thiab teeb meem kom tsis txhob muaj kuab paug.
Dawb glossy hexahedral siv lead ua los yog dawb crystalline hmoov.Me ntsis iab.Sublimate ntawm 145 ~ 148 ℃.Melting point 293 ~ 295 ℃ (decomposition).Nyob rau hauv lub xub ntiag ntawm hydrocarbons, nws yog ruaj khov nyob rau hauv inorganic acid aqueous tov.Txhua gram yog yaj hauv 40 ml dej thiab txog 100 ml acetic acid.Nws yog me ntsis soluble hauv ethanol, dilute hydrochloric acid, alkaline hydroxide thiab carbonate kua.Insoluble hauv ether.
1. Nws yog ib qho tseem ceeb amino acid.Qhov xav tau rau cov txiv neej laus yog 2.2g / d, uas yog qhov tsim nyog rau kev loj hlob ntawm cov menyuam mos thiab ib txwm muaj nitrogen tshuav ntawm cov neeg laus.Raws li cov khoom noj khoom haus ntxiv, nws yog siv los npaj cov amino acid infusion thiab kev npaj cov amino acid, tus neeg sawv cev hypoglycemic thiab cog kev loj hlob.Raws li GB 2760-86, nws tuaj yeem siv tau los ua tshuaj tsw qab.
2. Raws li amino acid infusion thiab kev npaj cov amino acid.Nws yog siv rau kev kuaj mob thiab kev kho mob ntawm idiopathic hyperglycemia hauv cov menyuam yaus.Nws kuj tseem tsim nyog rau cov teeb meem ntawm cov piam thaj metabolism, kab mob siab nrog txo cov kua tsib zais cia, ntshav ntshav, lom, nqaij atrophy, sequelae ntawm poliomyelitis, neuritis thiab psychosis.
