Kua kua qaub
Malic acid, tseem hu ua 2-hydroxysuccinic acid, muaj ob lub stereoisomers vim yog asymmetric carbon atom nyob rau hauv lub molecule. Nyob rau hauv cov xwm, nws muaj nyob rau hauv peb hom, uas yog D-malic acid, L-malic acid thiab lawv cov sib tov DL-malic acid. Dawb siv lead ua los yog crystalline hmoov, hygroscopic heev thiab yooj yim soluble hauv dej thiab ethanol. Lawv muaj ib tug tshwj xeeb qab ntxiag saj. Malic acid feem ntau yog siv rau hauv cov khoom noj thiab tshuaj lag luam.
Hauj lwm lawm
Product Description
Malic acid, tseem hu ua 2-hydroxysuccinic acid, muaj ob lub stereoisomers vim yog asymmetric carbon atom nyob rau hauv lub molecule. Nyob rau hauv cov xwm, nws muaj nyob rau hauv peb hom, uas yog D-malic acid, L-malic acid thiab lawv cov sib tov DL-malic acid.
Dawb siv lead ua los yog crystalline hmoov, hygroscopic heev thiab yooj yim soluble hauv dej thiab ethanol. Nws muaj ib tug tshwj xeeb qab ntxiag saj; nyob rau hauv ib txwm tej yam kev mob, me me acid yog ruaj khov, tab sis nyob rau hauv high humidity nws yog hygroscopic.
Khoom Parameter
| Kuaj | Kev xav tau | Kev tshwm sim |
| Kev tsom xam (%) | 99.{1}} -100.5 | 99.2 |
| TSEEM CEEB | -01 -- +0.1 | 0 |
| MELTING RANGE (degree) | 127-132 | 130 |
| INSOLUTE Dej (%) | MAX 0,1 | 0.01 |
| SULPHATE ASH (%) | MAX 0,1 | 0.06 |
| FUMARIC ACID (%) | MAX 1 0 | 0.56 |
| MALEIC ACID (%) | MAX 0.05 | 0.01 |
| Hnyav hlau PPM | Tsis ntau tshaj 10 | GGlt; 10 |
| ARSENIC PPM | MAX 2 | GGlt; 2 |
| LEAD PPM | MAX 2 | GGlt; 2 |
| MERCURY Parts/million | MAX 1 | GGlt; 1 |
| KEV TIV THAIV | IR ABSORPTION | TXOJ CAI |
| Xaus | Cov khoom ua tau raws li tus qauv saum toj no. | |
Nqe lus
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Malic acid feem ntau yog siv rau hauv cov khoom noj thiab tshuaj lag luam.
Malic Acid DL yog siv los ua cov kua qaub stabilizer, colour retaining agent, preservative thiab emulsion stabilizer rau qe qe, thiab lwm yam hauv kev lag luam khoom noj khoom haus. DL malic acid kuj tseem siv rau hauv tshuaj. |
Cim npe nrov: Tuam Tshoj malic acid manufacturers, lwm tus neeg
