Bromocresol Green Pẹlu CAS 76-60-8

CAS:76-60-8

MF:C21H14Br4O5S

MW:698.01

EINECS:200-972-8

Itumọ ọrọ:3,3',5,5'-Tetrabromo-m-cresosulfonaphthalein; 4,4'- (3h-2,1-benzoxathiol-3-ylidene) bis (2,6-dibromo-3-methylphenol) s, s-dioxide; 4,4- (3h-2,1-benzoxathiol-3-ylidene) bis (2,6-dibromo-m-cresol) s, s-dioxide m-cresol; 4,4- (3h-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromo-,s,s-dioxidephenol)

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Kini Bromocresol Green Pẹlu CAS 76-60-8?

Bromocresol alawọ ewe jẹ diẹ tiotuka ninu omi ati tiotuka ni ethanol, ether, ethyl acetate, ati benzene. Ni ifarabalẹ pupọ si alkali, alawọ ewe Bromocresol yipada awọ-awọ buluu-alawọ ewe pataki kan nigbati o ba pade awọn ojutu olomi ipilẹ. Bromocresol alawọ ewe le ṣee lo bi itọka, ti o han ofeefee ni pH 3.8 ati alawọ ewe-bulu ni pH 5.4.

Sipesifikesonu

Awọn nkan	Sipesifikesonu
PH (aarin iyipada)	3.8 (ofeefee alawọ) -5.4 (bulu)
Igi gigun gbigba ti o pọju (nm) 1 (PH 3.8) 2 (PH 5.4)	440-445 615-618
olùsọdipúpọ̀ gbígbà púpọ̀, L/cm · g α1 (λ1PH 3.8, ayẹwo gbigbẹ) α2 (λ2PH 5.4, ayẹwo gbigbẹ)	24–28 53-58
Idanwo itu Ethanol	kọja
Iyoku sisun (ṣe iṣiro bi imi-ọjọ)	≤0.25
Pipadanu lori gbigbe	≤3.0

Ohun elo

1.Bromocresol alawọ ewe jẹ oluranlowo abawọn Cell
2.Bromocresol alawọ ewe jẹ afihan Acid-base, pH awọ iyipada ibiti 3.8 (ofeefee) si 5.4 (bulu-alawọ ewe)
3.Bromocresol alawọ iṣu soda iyọ ti wa ni lilo ni igbagbogbo ni ipinnu colorimetric ti acidity ati alkalinity. Ojutu iyọ iṣu soda alawọ ewe Bromocresol jẹ lilo bi aṣoju awọ fun wiwọn iye pH nipasẹ spectrophotometry. Ti a lo bi reagent fun kiromatogirafi Layer tinrin lati pinnu awọn hydroxyacids aliphatic ati awọn alkaloids, ati bi isediwon ati aṣoju ipinya fun ipinnu photometric ti awọn cations ammonium quaternary.