alpha-Naphtholphthalein CAS 596-01-0

CAS:596-01-0

Tsarin kwayoyin halitta:Saukewa: C28H18O4

Nauyin Kwayoyin Halitta:418.44

EINECS:209-875-5

Ma’ana:3,3-bis (4-hydroxynaphthalen-1-yl) -1,3-dihydro-2-benzofuran-1-daya; alpha-Naphtholphthalein, mai nuna alama, mai tsabta 5GR; 3,3-Bis (4-hydroxynaphthalen-1-yl) isobenzofuran-1 (3H) -daya; 1-NAPHTHOLPHTHALEIN MALAMAI PH 7,1 - 8; 1-NAPHTHOLPHTHALEIN; ALFA-NAPHTHOLPHTHALEIN; NAPHTHALEIN

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Menene alpha-Naphtholphthalein CAS 596-01-0?

Najasa a cikin alpha Nathophthalein galibi launin ja ne mai haske, wanda ke canzawa daga haske ja zuwa shuɗi-kore a pH 7.3-8.7.

Ƙayyadaddun bayanai

Abu	Ƙayyadaddun bayanai
Wurin tafasa	496.21°C (m kiyasi)
Yawan yawa	1.1532
Wurin narkewa	238-240 ° C (lit.)
pKa	8.0, 8.2, 8.5 (a 25 ℃)
resistivity	1.6400 (kimanta)
Yanayin ajiya	Adana a ƙasa + 30 ° C.

Aikace-aikace

Alpha Nephthophyllein ana amfani dashi azaman alamar tushen acid. Ba shi da launi zuwa rawaya orange a pH na kusan 6.7 kuma yana canzawa daga rawaya orange zuwa shuɗi a pH na kusa da 7.9. Najasa a cikin samfuran kasuwanci galibi suna bayyana azaman launin ja mai haske, wanda ke canzawa daga haske ja zuwa shuɗi-kore a pH na 7.3-8.7.