Magnesium sulfate heptahydrate CAS 10034-99-8 powder

o-Cresolphthalein Complexone CAS 2411-89-4

CAS:2411-89-4
Molecular Formula:C32H32N2O12
Molecular Weight:636.61
EINECS:219-318-8

Synonyms:XYLENOLPHTHALEIN-BIS(MINODIACETIC ACID); XYLENYLPHTHALEIN-BISIMINODIACETIC ACID; PHTHALEIN PURPLE; PHTHALEIN COMPLEXON; PHTHALEIN COMPLEXONE; Cresolphtha; o-Cresolphthalein complexone p.a.; o-Cresolphthalein Co; Metalphthalein, n-hydrate

What o-Cresolphthalein Complexone CAS 2411-89-4？

O-Cresolphthalein Complexone, also known as o-toluene phenolphthalein (C22H18O4mol346.38), is a white or yellow powder that is easily soluble in ethanol and ether; Insoluble in water, soluble in dilute alkali, blue in color, pH 8.2-9.8 (color ranges from colorless to red); The maximum absorption peak is 566 (381) mm.

Đặc điểm kỹ thuật

Mục	Đặc điểm kỹ thuật
λmax	575nm, 377nm
Mật độ	1.515±0.06 g/cm3(Predicted)
Điểm nóng chảy	181-185 °C (dec.)(lit.)
Điều kiện lưu trữ	Cửa hàng dưới 30 độ C.
Độ tinh khiết	98%pKa
pKa	1.47, 8.24(at 25℃)

Ứng dụng

O-Cresolphthalain Complexone is an indicator for complexometric titration of magnesium, calcium, strontium, barium, and SO42-; Reagent for determining serum calcium, chelating ion chromatography ligand for trace metal ions