抄録
The effects of the various purification methods…… the chlorine method, the copper sulphate method, the basic lead acetate method, the hydrochloric acid method and the repeating method which is carried out by repeating the filtration and precipitation processes alternately…… were investigated by us. and it was found that the hydrochloric acid method was the most useful one.
Some experiments on the utilization of alginic acid for the preparation of an artistic paint, an opaque glass and a furniture paint were also described.
