Khoom Taw Qhia Thiab Daim Ntawv Thov
Dawb koob zoo li siv lead ua. Hluav taws kub. Melting point 172-175 degree . Qhov kub ntawm qhov kub yog 285-287 degree, qhov txheeb ze ntom ntom yog 1.328 (15 degree), lub teeb nyem yog 165 degree, thiab qhov taw tes nws tus kheej yog 516 degree. tshuaj benzene. Nws yog ib qho yooj yim los tsim thaum nws raug rau lub teeb nyob rau hauv cov huab cua, thiab oxidizes nyob rau hauv kev daws.
Daim ntawv thov:
【Siv 1】
Siv raws li tus neeg sawv cev duab, dye thiab tshuaj raw khoom.
【Siv 2】
Siv raws li kev tshuaj ntsuam reagent, txo tus neeg sawv cev thiab tsim tawm rau tooj liab thiab kub.
【Siv 3】
Hydroquinone yog ib qho nruab nrab ntawm cov tshuaj tua kab mob quinoline, pyriflonazoline, thiazoline, oxazoline, fluropyloxoline, thiab lactofluronoline, thiab kuj yog ib qho nruab nrab ntawm cov tshuaj thiab cov xim.
【Siv 4】
Hydroquinone feem ntau yog siv los ua tus tsim duab thaij duab. Hydroquinone thiab nws cov alkylates tau dav siv los ua inhibitors ntxiv thaum lub sij hawm monomer cia thiab kev thauj mus los, nrog rau cov concentration ntawm txog 200ppm. Hydroquinone monomethyl ether yog nruab nrab ntawm edible roj antioxidant BHA. Hydroquinone dimethyl ether yog ib qho nruab nrab ntawm dyes, organic pigments thiab fragrances. Hydroquinone diethyl ether yog ib qho nruab nrab ntawm photosensitive pigment thiab dye. Hydroquinone kuj tseem siv los ua N, N '-diphenyl-p-phenylenediamine, uas yog siv los ua antioxidant thiab deodorant hauv roj hmab thiab roj av.
【Application 5】
Phosphorus, magnesium, niobium, tooj liab, silicon thiab arsenic tau txiav txim siab los ntawm txoj kev colorimetric. Polarographic thiab volumetric txiav txim siab ntawm iridium. Txo tus neeg sawv cev ntawm heteropoly acid, txo tus neeg sawv cev ntawm tooj liab thiab kub. Tshawb xyuas phosphate, tungstate, nitrate, nitrite, selenium thiab tellurium.
【Application 6】
Cov neeg tsim tawm dub thiab dawb, anthraquinone dye, azo dye, roj hmab antioxidant, stabilizer thiab antioxidant tau npaj. Siv hauv ICP-AES, AAS, AFS, ICP-MS, ion chromatography, thiab lwm yam. Cov txheej txheem kev tshuaj xyuas titration.
Technical Parameter
|
Suav npe |
hydroquinone |
|
English npe |
Hydroquinone |
|
Ib tug English alias |
Quinol |
|
CAS |
123-31-9 |
|
EINECS |
204-617-8 |
|
tshuaj formula |
C6H6O2 |
|
molecular hnyav |
110.11 |
|
ceev |
1.32 |
|
melting point |
172-175 degree (lit.) |
|
kub point |
285 degree (lit.) |
|
flash point |
165 degree |
|
dej solubility |
70 g/L (20 ºC) |
|
vapor siab |
1 hli Hg (132 degree) |
|
Vapor ceev |
3.81 (vs cua) |
|
solubility |
H2O: 50mg / ml, qhia meej |
|
Refractive Index |
1.6320 |
|
Acidity coefficient |
10.35 (ntawm 20 degree) |
|
Cia tej yam kev mob |
Khaws hauv qab +30 degree . |
|
ruaj khov |
ruaj khov. Hluav taws kub. Incompatible nrog muaj zog oxidants, muaj zog alkalis, oxygen, hlau ntsev. Lub teeb thiab huab cua rhiab heev. Discoloration hauv huab cua. |
|
rhiab heev |
Cua & Lub teeb Sensitive |
|
tsos |
Koob zoo li cov muaju los yog cov hmoov crystalline |
|
xim |
Dawb mus rau dawb |
|
Merck |
14,4808 |
|
BRN |
605970 |
|
Kev txwv tsis pub dhau |
NIOSH REL: 15-min qab nthab 2, IDLH 50; OSHA PEL: TWA 2; ACGIH TLV: TWA 2 (adapted). |
|
Physicochemical zog |
Dawb koob siv lead ua. Soluble hauv dej kub, ethanol thiab ether, me ntsis soluble hauv benzene. |
Ntim Thiab Cia
Raws li cov neeg siv khoom xav tau
Cim npe nrov: hydroquinone cas:123-31-9, Tuam Tshoj hydroquinone cas:123-31-9 manufacturers, lwm tus neeg, Hoobkas
