L-Proline
CAS L-Proline: 147-85-3
Airíonna Ceimiceacha L-Proline
MF: C5H9NO2
MW: 115.13
EINECS: 205-702-2
Leáphointe: 228 ° C (dec.) (Lit.)
alfa: -85.5 º (c = 4, H2O)
Pointe fiuchta: 215.41 ° C (meastachán garbh)
Dlús: 1.35
Innéacs athraonta: -85 ° (c = 4, h2o)
Intuaslagthacht22: 50 mg / ml
Pka: 1.95, 10.64 (ag 25â „ƒ)
Ph: 6.0-7.0 (25â „ƒ, 1m in h2o)
Gníomhaíocht optúil: [Î ±] 20 / D 85.0 ± 1.0 °, c = 5% in H2O
Intuaslagthacht Uisce: intuaslagtha
CAS L-Proline: 147-85-3 Specification:
|
L-Proline |
AJI92 |
Innéacs na hEorpa |
An chéad ghrád |
Innéacs SAM |
|
Measúnacht |
99.0-101.0% |
98.5-101.0% |
â ‰ ¥ 99.0% |
98.5-101.5% |
|
PH |
5.9-6.9 |
/ |
5.9-6.9 |
/ |
|
Rothlú sonrach [a] D20 |
-84.5 ° --86.0 ° |
-84.0 ° --86.0 ° |
-84.5 ° --86.0 ° |
/ |
|
Rothlú sonrach [a] D25 |
/ |
/ |
/ |
-84.3 ° --86.3 ° |
|
Transmittance (T430) |
â ‰ ¥ 98.0% |
soiléir & gan dath |
â ‰ ¥ 98.0% |
/ |
|
Clóiríd (Cl) |
â ‰ ¤0.02% |
â ‰ ¤0.02% |
â ‰ ¤0.02% |
â ‰ ¤0.05% |
|
Amóiniam (NH4) |
â ‰ ¤0.02% |
â ‰ ¤0.02% |
â ‰ ¤0.02% |
|
|
Sulfáit (SO4) |
â ‰ ¤0.02% |
â ‰ ¤0.03% |
â ‰ ¤0.02% |
â ‰ ¤0.03% |
|
Iarann (Fe) |
â ‰ ¤10PPM |
â ‰ ¤10PPM |
â ‰ ¤10PPM |
/ |
|
Miotail throma (Pb) |
â ‰ ¤10PPM |
â ‰ ¤10PPM |
â ‰ ¤10PPM |
â ‰ ¤15PPM |
|
Arsanaic |
â ‰ ¤1PPM |
/ |
â ‰ ¤1PPM |
|
|
Aimínaigéid eile |
neamhíonachtaí aonair ‰ ¤0.5% neamhíonachtaí iomlána ‰ ¤2.0% |
neamhíonachtaí aonair ‰ ¤0.20% neamhíonachtaí iomlána ‰ ¤0.5% |
â ‰ ¤0.5% |
neamhíonachtaí aonair ‰ ¤0.5% neamhíonachtaí iomlána ‰ ¤2.0% |
|
Substaintí Ninhydrin-dearfach |
/ |
cloí |
/ |
|
|
Caillteanas ar thriomú |
â ‰ ¤0.30% |
â ‰ ¤0.50% |
â ‰ ¤0.30% |
â ‰ ¤0.4% |
|
Iarmhar ar adhaint |
â ‰ ¤0.10% |
â ‰ ¤0.10% |
â ‰ ¤0.10% |
â ‰ ¤0.4% |
|
Neamhíonachtaí so-ghalaithe orgánacha |
/ |
/ |
/ |
/ |
|
Endotoxin |
/ |
/ |
<10EU / g |
/ |
