Phenolphthalein cas 77-09-8

Cas:77-09-8

tātai rāpoi:C20H14O4

Taumaha rāpoi:318.32

EINECS:201-004-7

kupu taurite: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

Waiho To Karere

Taipitopito Hua

Tikiake

Tohu Hua

He aha te Phenolphthalein cas 77-09-8?

Ko te Phenolphthalein he waikawa waro ngoikore, ka puta he kiripiri ma, he kowhai paku ranei i te pāmahana rūma. He hongi me te kore reka. He uaua ki te memeha i roto i te wai engari he ngawari ki te wairewa ki te waipiro (waihā) me te etera. Ka rewa ki roto i te wairewa waipiro hei tohu tohu waikawa-waahi. Karekau he tae i roto i te wairewa waikawa me te whero i roto i te wairewa kawakore, i te wairewa warowaiwa whakarewa alkali ranei. Heoi, mena kei roto i te wairewa kawakore, ka puta he waikawa trimetallic kore tae. te tote, ka memenge te tae whero

Whakatakotoranga

Te ahua	Te paura tioata ma, kowhai marama ranei
Ihirangi	98-102
Te rewa	260-263 ℃
pūhaumāota	≤0.01
pūkawa	≤0.02
Te tairongo	Kua whai tohu
Te toenga i runga i te mura (i roto i nga korero mo te sulfate)	≤0.1
Ngaronga i te whakamaroke	≤1.0
Te whakarewa taumaha	≤0.001
Te maha o nga huakita aerobic	≤1000cfu/g
Katoa te maha o nga pokepokea me te rewena	≤100cfu/g

Taupānga

1. Ko nga rauemi mata rongoa mo te umanga rongoa: e tika ana mo te kookiri kawa me te whakakeke, e waatea ana i roto i nga papa, nga suppositories me etahi atu momo inenga.

2. Phenolphthalein whakamahia i roto i te whakahiato waro: te nuinga whakamahia mo te kirihou waihanga, ina koa mo te whakahiato o naphthyridine polyaryl ether ketone polyaryl ether ketone polymers. Ko tenei momo polymer he tino pai te parenga wera, te aukati wai, me te aukati matū. Na te kaha o te waikura, te wera o te koroheketanga me te pai o te tukatuka me te hangai, ka tere te whakamahi i nga muka, paninga me nga rauemi hiato mai i a ia i roto i nga taputapu hiko, taputapu miihini, kawe waka, aerospace, miihini hiko ngota me nga mara hoia.

3. Ka whakamahia te Phenolphthalein hei tohu waikawa-papa, tohu mo te titration o nga wairewa kore-wai, me te reagent mo te tātari chromatographic.