16463
Accession Number
11822
Author
Fritz, Felix
Title Of Article Chaper
250 Jahre Berlinerblau: Warum Pariserblau an Stelle von Berlinerblau?
Title Of Journal Book
Deutsche Farben-Zeitschrift
Volume
8
Issue
1
Pages
44385
Literature Type
Serial
Literature Level
Analytic
Abstract
In 1704 berlin blue was discovered by Diesbach in Berlin by a curious accident. This pigment maker made Florentine lacquer from cochineal, alum, iron sulfate and potash. One day, instead of potash, he used an alkali which had been used for purefying Dippel's animal oil. As if by magic a deep blue pigment appeared; its preparation remained a secret until Woodward published it in 1724. Blood-lye was mixed with a solution of alum and ferrous sulfate, and a greenish precipitate appeared, which turned blue with hydrochloric acid. Nothing is now known about Diesbach and his life. Dippel was an alchemist who undertook the manufacture of gold and was known for his animal oil. Macquer markedly improved the method of preparation of Berlin blue by preparing and using potassium ferrcyanide. Sage was the first to obtain solid potassium ferrocyanide. The deeply colored blue obtained in Paris by Macquer waas called Paris blue in Germany. In 1749 Macquer used this blue to dye fabrics, which he dipped first in a ferrous sulfate solution and then in blood-lye.
Keywords
prussian;paris;berlin;blue
pub_id
16463
Title Translation
250 Years of Berlin Blue: Why Paris Blue instead of Berlin Blue?