反应详情

Oxalic acid (320 grams) and potassium hydroxide (270 grams) was dissolved in 600 milliliters of water. The resulting solution was added all at once to the copper, barium, yttrium solution previously formed with stirring. The pH was adjusted to 11.5 by adding a few millimeters of saturated potassium hydroxide solution. The solution was filtered, and the precipitate was washed and dried at 120° C. for 16 hours.

1. custompreviously formed
2. filtrationThe solution was filtered
3. washthe precipitate was washed
4. customdried at 120° C. for 16 hours