L-Glutamic Acid
L-Glutamic Acid
| Qhov tshwm sim | Dawb mus rau dawb hmoov |
| Kev sib hloov tshwj xeeb[α]20/D | +31.5° ~ +32.5° |
| Chloride (CL) | ≤ 0.02% |
| Sulpbate (SO42-) | ≤ 0.02% |
| Hlau (Fe) | ≤10ppm |
| Residue ntawm ignition | ≤0.1% |
| Heavy hlau (Pb) | ≤10ppm |
| Assay | 98.5% ~ 101.5% |
| Poob rau ziab | ≤0.1% |
| tus kheej impurity | ≤ 0.5% |
| tag nrho impurity | ≤ 2.0% |
Cov tsos mob: Dawb rau cov hmoov dawb dawb
Cov khoom zoo raws li: AJI92, EP8, USP38 tus qauv.
Cov xwm txheej Tshuag: Feem ntau khaws 10,000KGs hauv Tshuag.
Daim ntawv thov: nws yog dav siv nyob rau hauv cov khoom noj additives, tshuaj intermediate, thiab cell kab lis kev cai teb.
Pob: 25kg / chim / Hnab
MDL No.: mfcd00002634
RTECS No.: lz9700000
PIB No.: 1723801
PubChem No.: 24901609
1. tus cwj pwm: L-glutamate, L-glutamic acid, yog dawb los yog tsis muaj xim squamous crystal, uas yog me ntsis acidic.Lub cev racemic, DL glutamate, yog cov xim tsis muaj xim.
2. Ceev (g/ml, 25/4 ℃): racemization: 1.4601;Kev sib hloov txoj cai thiab sab laug: 1.538
3. txheeb ze chav ntom ntom (g / ml, cua = 1): tsis txiav txim siab
4. melting point (OC): 160
5. boiling point (OC, atmospheric siab): tsis txiav txim
6. boiling point (OC, 5.2kpa): tsis tau txiav txim
7. Refractive Performance index: tsis txiav txim siab
8. flash point (OC): tsis txiav txim siab
9. kev sib hloov photometric (o): [α] d22.4 + 31.4 ° (C = 1.6mol / l hydrochloric acid)
10. ignition point lossis ignition kub (OC): tsis tau txiav txim
11. chav siab (kPa, 25 ° C): tsis txiav txim siab
12. saturated chav siab (kPa, 60 ° C): tsis txiav txim siab
13. combustion kub (kj/mol): tsis txiav txim
14. qhov kub thiab txias (OC): tsis txiav txim siab
15. Lub siab tseem ceeb (kPa): tsis txiav txim siab
16. tus nqi ntawm cov coefficient ntawm kev faib cov roj thiab dej (octanol / dej): tsis txiav txim siab
17. Lub siab tawg qhov txwv (%, v/v): tsis txiav txim siab
18. qis tawg txwv (%, v/v): tsis txiav txim siab
19. solubility: cov racemic yog me ntsis soluble nyob rau hauv dej txias, yooj yim rau yaj nyob rau hauv dej kub, yuav luag insoluble nyob rau hauv ether, ethanol thiab acetone, thaum lub racemic lub cev yog me ntsis soluble nyob rau hauv ethanol, ether thiab roj av ether.
1. Mob toxicity: tib neeg qhov ncauj tdlo: 71mg / kg;tib neeg txoj hlab ntshav tdlo: 117mg / kg;nas qhov ncauj LD50> 30000 mg / kg;luav qhov ncauj LD50:> 2300mg / kg
2.Mutagenicity: tus muam chromatid exchange test system: human lymphocytes: 10mg / L
Dej nyab xeeb qib 1 (German txoj cai) (kev ntsuas tus kheej los ntawm daim ntawv teev npe) cov khoom no muaj kev phom sij me ntsis rau dej.
Tsis txhob tso cai rau cov khoom tsis muaj tshuaj lom lossis muaj ntau ntau los rau hauv cov dej hauv av, cov kav dej lossis cov kav dej phwj tuaj.
Tsis txhob tso cov khoom pov tseg rau hauv ib puag ncig yam tsis muaj kev tso cai los ntawm tsoomfwv.
1. Molar refractive index: 31.83
2. Molar ntim (cm3 / mol): 104.3
3. Isotonic tshwj xeeb ntim (90.2k): 301.0
4. Nto nro (dyne / cm): 69.2
5. Polarizability (10-24cm3): 12.62
1. Cov khoom no tsis muaj tshuaj lom.
2. Tsis muaj ntxhiab, me ntsis tshwj xeeb saj thiab qaub saj.
3.Nws muaj nyob rau hauv luam yeeb thiab haus luam yeeb.
1. Cov khoom no yuav tsum tau muab kaw thiab khaws cia rau hauv qhov chaw txias thiab tsaus.
2. Ntim hauv hnab yas, npog nrog hnab nylon lossis hnab yas woven, net hnyav 25kg.Nyob rau hauv tus txheej txheem ntawm kev cia thiab kev thauj mus los, yuav tsum tau them nyiaj mloog mus rau noo noo-pov thawj, tiv thaiv tshav ntuj thiab tsis kub cia.
1. L-glutamic acid feem ntau yog siv rau hauv kev tsim cov monosodium glutamate, naj hoom, ntsev hloov, khoom noj khoom haus ntxiv thiab biochemical reagent.L-glutamic acid nws tus kheej tuaj yeem siv los ua tshuaj los koom nrog cov metabolism hauv cov protein thiab qab zib hauv lub hlwb thiab txhawb cov txheej txheem oxidation.Cov khoom sib xyaw ua ke nrog ammonia los tsim cov tshuaj tsis muaj tshuaj lom glutamine hauv lub cev kom txo tau cov ntshav ammonia thiab txo cov tsos mob ntawm tus mob hepatic coma.Nws yog tsuas yog siv nyob rau hauv kev kho mob ntawm hepatic coma thiab mob hepatic insufficiency, tab sis cov nyhuv curative tsis txaus siab heev;ua ke nrog cov tshuaj antiepileptic, nws tuaj yeem kho me me qaug dab peg thiab qaug dab peg psychomotor.Racemic glutamic acid yog siv los tsim cov tshuaj thiab biochemical reagents.
2. Nws yog feem ntau tsis siv ib leeg, tab sis ua ke nrog phenolic thiab quinone antioxidants kom tau txais txiaj ntsig zoo synergistic.
3. Glutamic acid yog siv los ua complexing tus neeg saib xyuas rau electroless plating.
4. Nws yog siv hauv tsev muag tshuaj, khoom noj khoom haus thiab khoom noj khoom haus fortifier;
5. Siv rau hauv kev tshawb fawb biochemical, kev kho mob siv rau hauv daim siab coma, tiv thaiv kab mob vwm, txo ketonuria thiab ketinemia;
6. Cov khoom siv ntsev, cov khoom noj khoom haus thiab cov tshuaj tsw qab (tsuas yog siv rau cov nqaij, kua zaub thiab nqaij qaib).Nws kuj tseem tuaj yeem siv los tiv thaiv crystallization ntawm magnesium ammonium phosphate hauv cov kaus poom cws, crabs thiab lwm yam dej hauv dej nrog qhov ntau npaum li cas ntawm 0.3% ~ 1.6%.Nws tuaj yeem siv tau ua tshuaj tsw qab raws li GB 2760-96;
Sodium glutamate, ib qho ntawm nws cov ntsev ntsev, yog siv los ua seasoning, thiab nws cov khoom muaj xws li monosodium glutamate thiab monosodium glutamate.
Noj 150mg qauv, ntxiv 4ml dej thiab LML sodium hydroxide test tov (ts-224), yaj, ntxiv LML ninhydrin test tov (TS-250) thiab 100mg sodium acetate, thiab kub hauv boiling dej da dej rau 10min kom tsim violet xim.
Siv 1g qauv, ntxiv 9ml dej los npaj kev ncua, maj mam sov nws hauv chav da dej thiab do kom txog thaum nws yaj tag, ntxiv 6.8ml lmol / l hydrochloric acid tov kom rov ncua, thiab ntxiv 6.8ml lmol / l sodium hydroxide tov kom yaj. glutamate kiag li tom qab stirring.
Txoj Kev 1: hnyav 0.2g qauv kom raug, yaj hauv 3ml formic acid, ntxiv 50ml glacial acetic acid thiab 2 tee ntawm crystal violet test tov (ts-74), titrate nrog 0.1mol / l perchloric acid tov kom txog thaum cov xim ntsuab lossis xiav ploj. .Tib txoj kev tau siv rau kev kuaj dawb.Txhua ml ntawm 0.1mol / l perchloric acid tov yog sib npaug rau 14.71mg ntawm L-glutamic acid (C5H9NO4).
Txoj Kev 2: hnyav 500mg qauv kom raug, yaj nws hauv 250mi dej, ntxiv ob peb tee ntawm bromothymol xiav tshuaj ntsuam xyuas (ts-56), thiab titrate nrog 0.1mol / l sodium hydroxide tov rau xiav kawg point.Txhua ml ntawm 0.lmol/l NaOH kua yog sib npaug rau 14.7mg ntawm L-glutamic acid (c5h9n04).
FAO / leej twg (1984): kua zaub thiab kua zaub rau zaub mov yooj yim, 10g / kg.
FEMA (mg / kg): dej haus, khoom ci, nqaij, hnyuv ntxwm, kua zaub, mis nyuj thiab khoom noj siv mis, seasoning, cereal khoom, tag nrho 400mg / kg.
FDA, 172.320 (2000): raws li kev noj haus ntxiv, qhov txwv yog 12.4% (raws li qhov hnyav ntawm tag nrho cov protein hauv cov zaub mov).
Cov khoom phom sij cim: F flammable
Safety kos npe: s24/25
Kev txheeb xyuas qhov xwm txheej: r36/37/38 [1]
Cov khoom siv phom sij kos npe Xi
Hazard qeb code 36/37/38
Cov lus qhia txog kev nyab xeeb 24/25-36-26
Wgk Germany 2rtec lz9700000
F 10
Kev lis kev cai code 29224200
Purity:> 99.0% (T)
Qib: gr
MDL No.: mfcd00002634
