Phenolphthalein cas 77-09-8

Cas:77-09-8

Molecular formula:C20H14O4

Huremu hweMolecular:318.32

EINECS:201-004-7

Shoko rakafanana:alpha, alpha.-Di(p-hydroxyphenyl)phthalide; 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-; 1(3H)-Isobenzofuranone,3,3-bis(4-hydroxyphenyl)-; 2,2-bis(p-hydroxyphenyl)phthalide; 3,3-bis (4-hydroxyphenyl) -1 (3h) -isobenzofuranon; alpha-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadien-1-ylidine)-o-toluicacid; alpha-di-(p-hydroxyphenyl)phthalide

Siya Mharidzo Yako

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Chii chinonzi Phenolphthalein cas 77-09-8?

Phenolphthalein is weak organic acid, inoratidzika sechena kana kuti yero zvishoma makristasi akanaka pane tembiricha. Hainhuhwi uye haina kunaka. Zvakaoma kunyungudika mumvura asi nyore kunyungudika mudoro (ethanol) uye ether. Iyo inonyungudutswa mumhinduro yedoro kuita iyo acid-base chiratidzo. Haina ruvara muacidic solution uye tsvuku mualkali solution kana alkali metal carbonate solution. Nekudaro, kana iri muconcentrated alkali solution, inoburitsa isina colorless trimetallic acid. munyu, ruvara rutsvuku runopera

Tsanangudzo

Chitarisiko	Muchena kana chiedza chero checrystalline poda
Content	98-102
Melting point	260-263 ℃
Chloride	≤0.01
Sulfate	≤0.02
Sensitivity	Qualified
Residue pakubatidza (maererano ne sulfate)	≤0.1
Kurasikirwa pakuomeswa	≤1.0
Heavy metal	≤0.001
Huwandu hwehuwandu hwehutachiona hweaerobic	≤1000cfu/g
Huwandu hwezvipfuyo nembiriso	≤100cfu/g

Application

1. Pharmaceutical raw materials for the pharmaceutical industry: inokodzera tsika uye yakasindimara kuvimbiswa, inowanikwa mumapiritsi, suppositories uye mamwe mafomu ekuyeresa.

2. Phenolphthalein inoshandiswa mune organic synthesis: inonyanya kushandiswa pamapurasitiki ekugadzira, kunyanya kushandiswa kwe naphthyridine polyaryl ether ketone polyaryl ether ketone polymers. Iyi mhando yepolymer ine yakanakisa kupisa kupisa, kuramba mvura, uye makemikari kuramba. Nekuda kwekushomeka kwayo kwekuora, kupisa kuchembera kuramba uye kugadzirisa kwakanaka uye kuumbwa, faibha, machira uye zvinhu zvakaumbwa kubva mairi zvinokurumidza kushandiswa zvakanyanya mumidziyo yemagetsi, midziyo yemagetsi, zvekufambisa, aerospace, engineering yeatomu uye mauto ehondo.

3. Phenolphthalein inoshandiswa sechiratidziro che-acid-base, chiratidzo chekugadzirisa kwezvisina-aqueous solutions, uye reagent ye chromatographic analysis.