#Ptu_facts 3 💡YOD QANDAY PAYDO BO'LGAN (En) Iodine was first discovered by Barnard Courtois, a French chemist in 1811 while extracting potassium and sodium from seaweed ash. When he accidentally added sulfuric acid, a violet colored cloud evolved from the mass. The resulting gas was condensed into dark crystals-the first occurrence of observed solid iodine. (Uz) Yod 1811 yilda fransuz kimyogari Bernard Kurtua tomonidan kashf etilgan. U yodni dengiz suvidan tuz olishga urinayotganda kashf etgan. Kurtua dengiz suviga sulfat kislota qo‘shilganda binafsha rangli bug‘ hosil bo‘lganini, so‘ngra quyuq kristallarga – yodga kondensatsiyalanishini payqadi. Ushbu kashfiyot kimyo va tibbiyot uchun katta ahamiyatga ega edi, chunki yod ko'plab dorilarning asosiy tarkibiy qismiga aylandi va sterilizatsiya jarayonida qo'llaniladi.