Phenolphthalein CAS 77-09-8

CAS:77-09-8

Cov mis molecular:C20H14O4

Qhov hnyav ntawm cov molecule:318.32

EINECS:201-004-7

Lub ntsiab lus: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

Sau Koj Cov Lus

Cov Khoom Qhia Txog Khoom

Rub tawm

Cov Cim Npe Khoom

Phenolphthalein CAS 77-09-8 yog dab tsi?

Phenolphthalein yog ib qho organic acid tsis muaj zog, uas zoo li dawb lossis me ntsis daj me ntsis ntawm chav tsev kub. Phenolphthalein 77-09-8 tsis muaj ntxhiab thiab tsis qab. Phenolphthalein 77-09-8 nyuaj rau yaj hauv dej tab sis yooj yim yaj hauv cawv (ethanol) thiab ether. Phenolphthalein yaj hauv cawv los ua ib qho qhia txog acid-base. Phenolphthalein 77-09-8 tsis muaj xim hauv cov kua qaub thiab liab hauv cov kua alkali lossis alkali hlau carbonate. Txawm li cas los xij, yog tias nws nyob hauv cov kua alkali concentrated, nws yuav tsim cov kua trimetallic tsis muaj xim. ntsev, xim liab ploj mus.

Cov Lus Qhia Tshwj Xeeb

Qhov tsos	Dawb los yog daj daj crystalline hmoov
Cov Ntsiab Lus	98-102
Qhov kub yaj	260-263 ℃
Chloride	≤0.01
Sulfate	≤0.02
Kev rhiab heev	Tsim nyog
Cov seem ntawm kev hlawv (nyob rau hauv cov nqe lus ntawm sulfate)	≤0.1
Poob thaum ziab	≤1.0
Hlau hnyav	≤0.001
Tag nrho cov kab mob aerobic	≤1000cfu/g
Tag nrho cov pwm thiab cov poov xab	≤100cfu/g

Daim Ntawv Thov

1. Cov khoom siv tshuaj rau kev lag luam tshuaj: tsim nyog rau kev cem quav thiab tawv ncauj, muaj nyob rau hauv cov ntsiav tshuaj, suppositories thiab lwm yam tshuaj.

2. Phenolphthalein siv rau hauv kev tsim cov organic: phenolphthalein hmoov feem ntau yog siv rau cov yas tsim, tshwj xeeb tshaj yog rau kev tsim cov naphthyridine polyaryl ether ketone polyaryl ether ketone polymers. Hom polymer no muaj kev tiv thaiv kub zoo heev, tiv thaiv dej, thiab tiv thaiv tshuaj lom neeg. Vim nws txoj kev tiv thaiv corrosion, tiv thaiv kub laus thiab kev ua tiav zoo thiab kev tsim qauv, cov fibers, coatings thiab cov ntaub ntawv sib xyaw ua los ntawm nws tau sai sai siv dav hauv cov khoom siv hluav taws xob, cov khoom siv kho tshuab, kev thauj mus los.

3. Phenolphthalein siv ua qhov qhia txog acid-base, qhov qhia rau titration ntawm cov tshuaj tsis yog aqueous, thiab reagent rau kev tshuaj ntsuam chromatographic.