IHydroquinone eneCAS 123-31-9

Indawo yokunyibilika:172-175 °C(lit.)

Indawo yokubilisa:285 °C(lit.)

Ubuninzi:1.32

Ukuxinana komphunga:3.81 (vs umoya)

Uxinzelelo lomphunga:1 mm Hg ( 132 °C)

Isalathiso seRefractive:1.6320

Shiya uMyalezo Wakho

Iinkcukacha zeMveliso

Khuphela

Iithegi zeMveliso

Iinkcukacha ezikhawulezayo

Indawo yokunyibilika 172-175 °C(lit.)

Indawo yokubila yi-285 °C(lit.)

Ubuninzi 1.32

Uxinzelelo lomphunga 3.81 (vs umoya)

uxinzelelo lomphunga 1 mm Hg ( 132 °C)

refractive index 1.6320

Fp 165 °C

ixesha lokugcina. Gcina ngaphantsi +30°C.

I-solubility H2O: 50 mg / mL, icacile

yenza iiCrystals ezifana nenaliti okanye umgubo weCrystalline

pka 10.35(at 20℃)

umbala White ukuya off-mhlophe

Ukunyibilika kwamanzi 70 g/L (20 ºC)

Uvakalelo loMoya kunye nokuKhanya kunovakalelo

Merck 14,4808

BRN 605970

Inkcazo

Igama lemveliso	IHydroquinone	Inombolo yeqela.	JL20211025
Cas	123-31-9	MF Umhla	OCT.25,2021
Ukupakisha	25KGS/BAG	Umhla wohlalutyo	OCT.25,2021
Ubungakanani	5MT	Umhla WOKUPHELELWA	OCT.24,2023
Into	Umgangatho		Isiphumo
Imbonakalo	Umgubo omhlophe wekristale		Iyahambelana
Isivavanyi %	99-101		99.9
Indawo yokunyibilika	171-175		171.9-172.8
Intsalela emva kokutshiswa %	≤0.05		0.02
Fe %	≤0.002		＜0.002
Pb %	≤0.002		＜0.002
Ukuqukumbela	Iyahambelana

Isicelo

IHydroquinone sisixhobo esikhanyisa ibala elisetyenziselwa ukwenza iikhrimu zokuthambisa. IHydroquinone idibana neoksijini ngokukhawuleza okukhulu kwaye iba mdaka xa isesichengeni somoya. Nangona isenzeka ngokwemvelo, inguqulelo eyenziweyo yeyona isetyenziswa ngokuqhelekileyo kwizinto zokuthambisa. Ukusetyenziswa eluswini kunokubangela ukwaliwa kwaye kwandise uvakalelo lwelanga lolusu. IHydroquinone inokubangela umhlaza kwaye inxulunyaniswa nokubangela i-ochronosis, ukujika kombala wolusu. I-US FDA iye yavala i-hydroquinone kwi-oTC cosmetic formulations, kodwa ivumela isi-4 sepesenti kwiimveliso ezimiselweyo.

I-1,4-dihydroxybenzene, ekwaziwa njenge-hydroquinone, yimathiriyeli ekrwada ebalulekileyo yeekhemikhali. Imbonakalo yayo yikristale emhlophe eyi-acicular. I-1,4-dihydroxybenzene isetyenziswa ngokubanzi njengento ebalulekileyo ekrwada, ephakathi kunye ne-arhente encedisayo kumayeza, izitshabalalisi, iidayi kunye nerabha. Isetyenziswa ikakhulu njengomphuhlisi, idayi ye-anthraquinone, idayi ye-azo, irabha antioxidant kunye ne-monomer polymerization inhibitor, i-stabilizer yokutya kunye ne-coating antioxidant, i-petroleum anticoagulant, i-synthetic ammonia catalyst, njl njl. kunye negolide.