Read More
Date: 31-1-2017
1165
Date: 31-1-2017
1279
Date: 31-1-2017
1283
|
Mauve Dye
In 1856, William Perkin, a student at The Royal College of Chemistry in London, decided to stay home during the Easter break and work in his lab on the synthesis of quinine.
During the course of his experiments, Perkin created some black gunk. As he was cleaning the reaction flask with alcohol, he noticed that the gunk dissolved and turned the alcohol purple — mauve, actually. This was the synthesis of the first artificial dye.
|
|
مخاطر عدم علاج ارتفاع ضغط الدم
|
|
|
|
|
اختراق جديد في علاج سرطان البروستات العدواني
|
|
|
|
|
مدرسة دار العلم.. صرح علميّ متميز في كربلاء لنشر علوم أهل البيت (عليهم السلام)
|
|
|