o-Cresolphthalein Complexone CAS 2411-89-4
O-Cresolphthalein Complexone, ti a tun mọ ni o-toluene phenolphthalein (C22H18O4mol346.38), jẹ funfun tabi ofeefee lulú ti o ni irọrun tiotuka ni ethanol ati ether; Insoluble ninu omi, tiotuka ni dilute alkali, bulu ni awọ, pH 8.2-9.8 (awọ awọn sakani lati colorless to pupa); Iwọn gbigba ti o pọju jẹ 566 (381) mm.
| Nkan | Sipesifikesonu |
| o pọju | 575nm, 377nm |
| iwuwo | 1.515±0.06 g/cm3(Asọtẹlẹ) |
| Ojuami yo | 181-185 °C (oṣu kejila)(tan.) |
| Awọn ipo ipamọ | Fipamọ ni isalẹ + 30 ° C. |
| Mimo | 98% pKa |
| pKa | 1.47, 8.24 (ni 25℃) |
O-Cresolphthalain Complexone jẹ itọkasi fun titration complexometric ti iṣuu magnẹsia, kalisiomu, strontium, barium, ati SO42-; Reagent fun ipinnu kalisiomu omi ara, ligand chromatography chelating fun awọn ions irin wa kakiri
Nigbagbogbo aba ti ni 25kg / ilu, ati tun le ṣee ṣe package ti adani.
o-Cresolphthalein Complexone CAS 2411-89-4
o-Cresolphthalein Complexone CAS 2411-89-4
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