o-Cresolphthalein Complexone CAS 2411-89-4
Ko te O-Cresolphthalein Complexone, e mohiotia ana ko te o-toluene phenolphthalein (C22H18O4mol346.38), he paura ma, he kowhai ranei he ngawari te whakarewa i roto i te ethanol me te ether; Karekau ki te wai, ka whakarewahia ki te kawakore waimeha, te tae puru, te pH 8.2-9.8 (te tae mai i te tae kore tae ki te whero); Ko te 566 (381) mm te teitei o te koha.
| Tūemi | Whakatakotoranga |
| λmax | 575nm, 377nm |
| Kiato | 1.515±0.06 g/cm3(Whakaahua) |
| Te rewa | 181-185 °C (tikura)(marama) |
| Nga tikanga rokiroki | Whakaorangia ki raro +30°C. |
| Maamaa | 98%pKa |
| pKa | 1.47, 8.24(i te 25 ℃) |
Ko te O-Cresolphthalain Complexone he tohu mo te titration complexometric o te konupora, te konupūmā, te strontium, te barium, me te SO42-; Reagent mo te whakatau i te konupūmā toto, chelating katote chromatography ligand mo nga katote whakarewa
I te nuinga o te waa ka whakakiia ki te 25kg / pahū, ka taea hoki te mahi mo te kete.
o-Cresolphthalein Complexone CAS 2411-89-4
o-Cresolphthalein Complexone CAS 2411-89-4
