alpha-Naphtholphthalein CAS 596-01-0

CAS:596-01-0

Cov mis molecular:C28H18O4

Qhov Hnyav Molecular:418.44

EINECS:209-875-5

Cov lus txhais:3,3-bis(4-hydroxynaphthalen-1-yl)-1,3-dihydro-2-benzofuran-1-ib; alpha-Naphtholphthalein, qhia, ntshiab 5GR; 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-ib; 1-NAPHTHOLPHTHALEIN QHIA PH 7,1 - 8; 1-NAPHTHOLPHTHALEIN; ALPHA-NAPHTHOLPHTHALEIN; NAPHTHOLPHTHALEIN

Sau Koj Cov Lus

Cov Khoom Qhia Txog Khoom

Rub tawm

Cov Cim Npe Khoom

Alpha-Naphtholphthalein CAS 596-01-0 yog dab tsi?

Cov khoom tsis huv hauv alpha Nathophthalein feem ntau yog xim liab dawb, uas hloov pauv ntawm xim liab dawb mus rau xiav ntsuab ntawm pH 7.3-8.7.

Cov Lus Qhia Tshwj Xeeb

Khoom	Cov Lus Qhia Tshwj Xeeb
Kub taw tes	496.21°C (kwv yees li qub)
Qhov Ceev	1.1532 (kwv yees li qub)
Qhov kub yaj	238-240 ° C (lit.)
pKa	8.0, 8.2, 8.5 (ntawm 25 ℃)
kev tiv taus	1.6400 (kwv yees)
Cov xwm txheej cia khoom	Khaws cia rau hauv qab +30 ° C.

Daim Ntawv Thov

Alpha Nephthophyllein siv ua ib qho qhia txog acid-base. Nws tsis muaj xim mus rau daj txiv kab ntxwv ntawm pH li ntawm 6.7 thiab hloov ntawm daj txiv kab ntxwv mus rau xiav ntawm pH li ntawm 7.9. Cov khoom tsis huv hauv cov khoom lag luam feem ntau tshwm sim ua xim liab daj, uas hloov ntawm liab daj mus rau xiav-ntsuab ntawm pH ntawm 7.3-8.7.