Ethyl Vanillin
Ethyl vanillin ndi organic pawiri ndi chilinganizo (C2H5O)(HO)C6H3CHO.Cholimba chopanda mtunduchi chimakhala ndi mphete ya benzene yokhala ndi magulu a hydroxyl, ethoxy, ndi foryl pa malo 4, 3, ndi 1, motsatana.
Ethyl vanillin ndi molekyulu yopanga, yosapezeka m'chilengedwe.Amakonzedwa kudzera masitepe angapo kuchokera ku catechol, kuyambira ndi ethylation kupereka "guethol".Etha uyu amalumikizana ndi glyoxylic acid kuti apereke chotengera cha mandelic acid, chomwe kudzera mu okosijeni ndi decarboxylation chimapereka ethyl vanillin.
Monga chokometsera, ethyl vanillin imakhala yamphamvu pafupifupi katatu kuposa vanillin ndipo imagwiritsidwa ntchito popanga chokoleti.
| Zinthu | Miyezo |
| Maonekedwe | Zoyera zoyera kapena zachikasu pang'ono |
| Kununkhira | Khalidwe la vanila, lamphamvu kuposa vanillin |
| Kusungunuka | 1 gramu ya ethyl vanillin iyenera kusungunuka mu 2ml 95% ethanol, ndipo imapanga yankho lomveka bwino. |
| Purity (Dry basis,HPLC) | 99% Mphindi |
| Kutaya pa Kuyanika | 0.5% Max |
| Melting Point (℃) | 76.0- 78.0 |
| Arsenic (As) | 3 mg / kg Max |
| Zitsulo Zolemera (monga Pb) | 10 mg / kg Max |
| Zotsalira pakuyatsa | 0.05% Max |
Kusungirako: m'malo owuma, ozizira, ndi amthunzi okhala ndi zotengera zoyambirira, pewani chinyezi, sungani kutentha.
Shelf Life: miyezi 48
Phukusi:mu25kg / thumba
kutumiza:mwachangu
1. Kodi malipiro anu ndi otani?
T/T kapena L/C.
2. Kodi nthawi yanu yobereka ndi yotani?
Kawirikawiri tidzakonza zotumiza m'masiku 7 -15.
3. Nanga zolongedza?
Nthawi zambiri timapereka zonyamula ngati 25 kg / thumba kapena katoni.Inde, ngati muli ndi zofunikira zapadera pa iwo, tidzatero malinga ndi inu.
4. Nanga bwanji kutsimikizika kwa zinthuzo?
Malinga ndi zinthu zomwe mudayitanitsa.
5. Ndi zolemba ziti zomwe mumapereka?
Nthawi zambiri, timapereka ma Invoice Zamalonda, Mndandanda Wonyamula, Bili yotsitsa, COA, satifiketi yaumoyo ndi satifiketi Yoyambira.Ngati misika yanu ili ndi zofunikira zapadera, tidziwitseni.
6. Kodi doko lotsegula ndi chiyani?
Nthawi zambiri ndi Shanghai, Qingdao kapena Tianjin.
