Содержание
- 2. Properties Under ordinary conditions iodine is solid black-grey with violet metallic luster substance. It is slightly
- 3. Being in nature Iodine is rare element in spite of its little content in almost all.
- 4. History In 1811 Courtois first found iodine in ash of seaweed. In 1813 -1814 Gay-Lussac proved
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Слайд 2
Properties
Under ordinary conditions iodine is solid black-grey with violet metallic luster
Properties
Under ordinary conditions iodine is solid black-grey with violet metallic luster
substance. It is slightly soluble in water. Iodine is very toxic.
In heating iodine gives off violet vapors with acrid odour.
In heating iodine gives off violet vapors with acrid odour.
Слайд 3
Being in nature
Iodine is rare element in spite of its little
Being in nature
Iodine is rare element in spite of its little
content in almost all. It is contains in all living organisms, water, minerals, soil. The largest quantity contains in seawater.
Due to its chemical active it doesn`t occur in nature in a free state.
Lautarite is the most famous mineral of iodine.
99% of reserves are in Chile and Japan.
Due to its chemical active it doesn`t occur in nature in a free state.
Lautarite is the most famous mineral of iodine.
99% of reserves are in Chile and Japan.
Слайд 4
History
In 1811 Courtois first found iodine in ash of seaweed.
In 1813
History
In 1811 Courtois first found iodine in ash of seaweed.
In 1813
-1814 Gay-Lussac proved than iodine is new simple substance and chemical element.
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Лингвокультурология и этнолингвистика