Gallic acid/CAS: 149-91-7
Kev Piav Qhia Luv:
Lub npe khoom: Gallic acid
Hom: ZA-N
CAS: 149-91-7
MF: C7H6O5
MW: 170.12
QAUV:
Qhov Ceev:1.694
Qhov kub yaj: 251 °C (tsawg dua) (lit.)
Cov siv lead ua dawb los yog xim av daj zoo li koob lossis hmoov. Melting point: 235-240℃(kev lwj). Thaum cua sov rau 100-120℃, nws poob nws cov dej crystalline. Thaum cua sov tshaj 200℃, nws poob carbon dioxide thiab tsim cov pyrogallic acid (piv txwv li, triphloroglucinol). Nws yog soluble hauv dej kub, ether, ethanol, acetone thiab glycerol, me ntsis soluble hauv dej txias, thiab insoluble hauv benzene thiab chloroform.
cov lus qhia tshwj xeeb
| Cov Lus Qhia Tshwj Xeeb | Cov Ntsiab Lus (%) |
| Tus nqi ntawm gallic acid cov ntsiab lus (qhuav qhuav)% | 99.50 feeb |
| Poob ntawm qhov ziab% | 0.50 siab tshaj |
| Kev kuaj mob tannic acid | Tsis muaj huab |
| Kev sim ua kom yaj dej | Tsis muaj huab |
| Chroma (Tus lej xim Platinum-cobalt) | siab tshaj 180 |
| Qhov tsis huv | 10 siab tshaj |
| Sulfate (Raws li SO42-)% | 0.02 siab tshaj |
| Cov Khoom seem ntawm kev kub hnyiab% | 0.1 siab tshaj |
| CL-% | 0.02 siab tshaj |
Kev Siv
gallic acid (GA), tseem hu ua gallnut acid, yog ib feem ntawm cov tannins hydrolyzable thiab muaj lub npe tshuaj lom neeg 3,4, 5-trihydroxybenzoic acid. Gallic acid muaj cov ntsiab lus siab hauv Yunnan Pu 'er tshuaj yej thiab nws tus kheej muaj ntau yam teebmeem xws li antibacterial, anti-inflammatory, anti-tumor thiab anti-mutagenic.
Gallic acid muaj ntau yam siv hauv kev lag luam tshuaj, kua mem, xim pleev, khoom noj, kev lag luam sib zog thiab kev tsim cov organic, thiab lwm yam. Gallic acid reacts nrog trivalent hlau ions los tsim cov dej xiav-dub, uas yog cov khoom siv raw rau kua mem xiav-dub. Nws kuj tseem siv tau hauv kev lag luam rau kev ua tawv. Nws kuj tseem siv tau ua tus tsim duab. Propyl gallate yog cov tshuaj antioxidant thiab tuaj yeem siv rau hauv cov roj thiab cov rog noj tau kom tiv thaiv kev puas tsuaj thiab kev puas tsuaj. Hauv kev kho mob, gallic acid yog tus neeg sawv cev hemostatic thiab astringent, nrog rau qhov tsis tshua muaj zog hauv zos.
Nws muaj cov teebmeem tua kab mob thiab siv tau los kho cov kab mob bacillary dysentery. Nws muaj cov teebmeem astringent, hemostatic thiab anti-diarrheal. Nws tuaj yeem siv ua cov tshuaj preservative. Nws tuaj yeem siv los npaj pyrogallic acid, tshuaj, inks, medium dyes thiab anti-explosion agents, thiab lwm yam. Nws kuj tseem siv ua tus tsim tawm thiab analytical reagent rau kev ntes cov inorganic acids dawb, dihydroxyacetone, alkaloids thiab hlau, thiab lwm yam.
Nws tuaj yeem siv ua cov tshuaj preservative, thiab tuaj yeem siv los npaj cov xim nruab nrab thiab cov neeg sawv cev tiv thaiv kev tawg, thiab lwm yam
Siv ua tshuaj reagent
Nws feem ntau yog siv los ua xim rau cov kua xiav-dub. Nws yog siv rau hauv kev lag luam tshuaj los npaj cov sulfonamide potentiator TMP thiab ua tus neeg sawv cev rau sulfonamides xws li SMZ thiab SD-ethyl. Kev lag luam zaub mov siv nws los npaj cov tshuaj gallic acid. Nws yog siv rau hauv kev lag luam tiv thaiv los npaj cov neeg sawv cev tawg. Tsis tas li ntawd, nws kuj tseem siv tau rau hauv kev tsim cov xim mordant thiab ua tus tsim tawm, thiab lwm yam.
Siv ua tus depolarizer hauv kev tshuaj xyuas electrochemical; siv rau kev txo cov phosphomolybdic acid; siv rau kev kuaj pom antimony, barium, bismuth, calcium, cerium, tooj liab, thiab lwm yam.; siv rau kev txiav txim siab ntawm phosphorus, nitrite, silver, thorium, titanium, thiab lwm yam.
Ib qho phenolic acid uas yaj tau hauv dej, uas muaj nyob rau hauv nplooj ntawm cov txiv hmab thiab ntau yam nroj tsuag, yog ib qho antioxidant zoo hauv vitro.
Ntim thiab Xa Khoom
25KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
