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Date: 31-1-2017
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Date: 31-1-2017
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Date: 31-1-2017
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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.
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دخلت غرفة فنسيت ماذا تريد من داخلها.. خبير يفسر الحالة
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ثورة طبية.. ابتكار أصغر جهاز لتنظيم ضربات القلب في العالم
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بالصور: ممثل المرجعية العليا الشيخ عبد المهدي الكربلائي يؤم جموع المؤمنين في صلاة عيد الفطر المبارك داخل الصحن الحسيني الشريف
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