Bromocresol Green Me te CAS 76-60-8

CAS:76-60-8

MF:C21H14Br4O5S

MW:698.01

EINECS:200-972-8

Kupu Taurite: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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Taipitopito Hua

Tikiake

Ngā Tohu Hua

He aha te Bromocresol Green me te CAS 76-60-8?

He paku wairewa te Bromocresol green ki te wai, ā, he wairewa hoki ki te etanoru, te etera, te etilasetate, me te benzene. He tino pāngia e te kawakore, ka huri te Bromocresol green ki te tae kikorangi-kakariki motuhake ina tūtaki ki ngā wairewa wai kawakore. Ka taea te whakamahi i te Bromocresol green hei tohu, ka puta he kōwhai i te pH 3.8 me te kikorangi-kakariki i te pH 5.4.

Whakatakotoranga

Ngā taonga	Whakatakotoranga
PH (wā whakawhiti)	3.8 (kōwhai kakariki) -5.4 (kikorangi)
Ngaru roangaru mimiti mōrahi（nm） λ1（PH 3.8） λ2（PH 5.4）	440~445 615~618
Tauwehenga mimiti papatipu, L/cm · g α1（λ1PH 3.8, tauira maroke） α2（λ2PH 5.4, tauira maroke)	24~28 53~58
Whakamātautau whakarewanga etanoru	pāhi
Te toenga tahunga (ka tatauhia hei whanariki)	≤0.25
Ngaronga i te whakamaroketanga	≤3.0

Tono

1. Ko te Bromocresol green he kaihoko whakakoi pūtau
2. Ko te Bromocresol green he tohu waikawa-pūtake, he rerekētanga tae pH i waenga i te 3.8 (kōwhai) ki te 5.4 (kikorangi-kakariki)
3. He mea whakamahi noa te tote konutai Bromocresol matomato hei whakatau i te waikawa me te kawakore tae. Ka whakamahia te otinga tote konutai a Bromocresol matomato hei kaihoko tae mō te ine i te uara pH mā te spectrophotometry. Ka whakamahia hei matū mō te chromatography paparanga angiangi hei whakatau i ngā waikawa hydroxy aliphatic me ngā alkaloid, hei kaihoko tango me te wehewehe hoki mō te whakatau i te kationa ammonium quaternary.