ārepa-Naphtholphthalein CAS 596-01-0

CAS:596-01-0

Tātai ngota:C28H18O4

Taumaha ngota:418.44

EINECS:209-875-5

Ngā kupu taurite:3,3-bis(4-hydroxynaphthalen-1-yl)-1,3-dihydro-2-benzofuran-1-one; alpha-Naphtholphthalein, tohu, parakore 5GR; 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one; 1-NAPHTHOLPHTHALEIN TOHU PH 7,1 - 8; 1-NAPHTHOLPHTHALEIN; ALPHA-NAPHTHOLPHTHALEIN; NAPHTHOLPHTHALEIN

Waiho tō karere

Taipitopito Hua

Tikiake

Ngā Tohu Hua

He aha te alpha-Naphtholphthalein CAS 596-01-0?

He whero mārama te nuinga o ngā poke o te alpha Nathophthalein, ka huri mai i te whero mārama ki te kikorangi-kakariki i te pH 7.3-8.7.

Whakatakotoranga

Taonga	Whakatakotoranga
Te pūwāhi koropupū	496.21°C (whakatau tata)
Kiato	1.1532 (whakatau tata)
Te pūwāhi rewa	238-240 °C (e whakamārama ana)
pKa	8.0, 8.2, 8.5 (i te 25℃)
ātete	1.6400 (whakatau tata)
Ngā tikanga rokiroki	Penapenahia i raro i te +30°C.

Tono

Ka whakamahia te Alpha Nephtophyllein hei tohu waikawa-pūtake. He kore tae ki te kōwhai karaka i te pH tata ki te 6.7, ā, ka huri mai i te kōwhai karaka ki te kikorangi i te pH tata ki te 7.9. He maha ngā wā ka puta he tae whero mārama i roto i ngā hua e wātea ana i te hokohoko, ka huri mai i te whero mārama ki te kikorangi-kakariki i te pH o te 7.3-8.7.