反应详情

Gadolinium chloride (10 mmol) was dissolved in water (5 ml). Ethylenediaminetetraacetic acid, tetrasodium salt hydrate (10 mmol) was dissolved in water (10 ml) and added portionwise to the gadolinium chloride solution. The solution became warm, and after ca. 15 minutes, a white precipitate was formed. The mixture was left for a further 2 hours. The precipitate was filtered off to give a white solid which was washed with water (2×5 ml) and dried in air to yield Gadolinium ethylenediaminetetraacetate sodium salt, Na[Gd(EDTA)]

1. temperatureThe solution became warm
2. customa white precipitate was formed
3. waitThe mixture was left for a further 2 hours
4. filtrationThe precipitate was filtered off
5. customto give a white solid which
6. washwas washed with water (2×5 ml)
7. customdried in air