0102 ib0304 ib05
Cov Khoom Noj Dawb Cov Khoom Noj Ntxiv Khoom Noj Siab Purity CAS 72-18-4 99% L-Valine Powder
Cov khoom
•Vapor Siab:2.6E-12mmHg ntawm 25 ° C
• Melting Point: 295-300 ° C (sub.) (lit.)
• Boiling Point: 213.642 °C ntawm 760 mmHg
• Refractive Index:28 ° (C = 8, HCl)
•Flash Point:83.008 ° C
•PSA:63.32.000 Nws
•PKA:2.37 ± 0.10 (Kev kwv yees)
• Cov tsos mob:Dawb crystalline hmoov
• Ceev:1.064 g / cm3
• Dej Solubility:85 g / L (20 ℃)
• LogP:0.75460 ib
•Exact Mass:117.078978594 ib
Specification
Cov khoom kuaj | Specifications | |
| Kev ntsuam xyuas pom | dawb crystalline hmoov los yog crystalline hmoov, tsis muaj tsw ntxhiab tsw | |
| Assay | ≥98.0% | |
| Poob rau ziab | ≤0.5% | |
| PH | 4.0 ~ 7.0 | |
| Residue ntawm ignition | ≤0.5% | |
| Kev sib hloov tshwj xeeb[α]D25 | + 26.6 ° ~ + 28.8 ° C | |
| Hlau ntsev | ≤ 0.003% | |
| Cov hlau hnyav (raws li Pb) | ≤ 5mg / kg | |
| Arsenin (raws li nyob rau hauv tag nrho arsenic) | ≤ 2mg / kg | |
| Mercury (raws li Hg) | ≤0.1mg / kg | |
Cov khoom siv
L-valine yog cov muaju dawb los yog crystalline hmoov, nrig me ntsis qab zib saj ces me ntsis iab saj. Dawb soluble nyob rau hauv formic acid, soluble nyob rau hauv dej, xyaum insoluble nyob rau hauv ethanol thiab ether. Thiab nws yog ib qho tseem ceeb amino acid uas yog tsim nyog rau du nervous sysytem thiab kev txawj ntse muaj nuj nqi. Nws yog ib qho ntawm peb ceg Tuam Tshoj Amino Acids (BCAAs). L-Valine tsis tuaj yeem tsim los ntawm lub cev thiab yuav tsum tau noj los ntawm cov khoom noj lossis tshuaj ntxiv.Valine tuaj yeem muab lub zog ntxiv rau cov leeg kom tsim cov piam thaj, tiv thaiv cov leeg tsis muaj zog, thiab tuaj yeem pab tshem tawm cov nitrogen ntau dhau ntawm lub siab, thiab pab thauj nitrogen mus rau txhua qhov chaw ntawm lub cev xav tau. Valine tuaj yeem siv los ua khoom noj khoom haus ntxiv, tuaj yeem ua ke nrog lwm yam tseem ceeb amino acid infusion, kev npaj cov amino acid.
L-Valine yog siv los ua cov khoom siv tshuaj los yog cov khoom noj ntxiv.
Ntim Thiab Cia
Pob:
25kg / Nruas los yog raws li koj xav tau.
Lus Cim: Cov tshuaj muaj pes tsawg leeg thiab qhov loj tuaj yeem ua kom zoo los ntawm cov neeg siv khoom xav tau
Cia:
Khaws lub thawv kaw kom nruj rau hauv qhov chaw qhuav, txias thiab zoo-ventilated. Cia sib nrug ntawm cov khoom ntim khoom noj lossis cov khoom siv tsis sib xws.
Kev Tiv Thaiv Kev Nyab Xeeb
Kev ceev faj rau kev nyab xeeb
Tuav nyob rau hauv qhov chaw zoo ventilated. Hnav khaub ncaws tiv thaiv kom haum. Tsis txhob kov ntawm daim tawv nqaij thiab qhov muag. Tsis txhob tsim cov hmoov av thiab aerosols. Siv cov cuab yeej tsis muaj teeb meem. Tiv thaiv hluav taws los ntawm electrostatic tawm chav.