what is bromine?

Answer 1

Bromine (IPA: /ˈbrəʊmiːn/ OR /ˈbrəʊmaɪn/, Greek: βρῶμος, brómos, meaning "stench (of he-goats)" [1]), is a chemical element in the periodic table that has the symbol Br and atomic number 35. A halogen element, bromine is a red volatile liquid at standard room temperature which has a reactivity between chlorine and iodine. This element is corrosive to human tissue in a liquid state and its vapors irritate eyes and throat. Bromine vapors are very toxic upon inhalation.

Answer 2

it is an element in the periodic table.
symbol is Br.
atomic no. 35
it is a halogen...group 7.
liquid at 298K
red-brown, metallic lustre when solid
metal
only liquid nonmetallic element
heavy, volatile, mobile, dangerous reddish-brown liquid
The red vapour has a strong unpleasant odour and the vapour irritates the eyes and throat. It is a bleaching. When spilled on the skin it produces painful sores. It is a serious health hazard, and maximum safety precautions should be taken when handling it.
available commercially
It is recovered commercially through the treatment of seawater with chlorine gas and flushing through with air. In this treatment, bromide is oxidized to bromine by the chlorine gas. The principle of oxidation of bromide to bromine is shown by the addition of a little chlorine water to aqueous solutions of bromide. These become brown as elemental bromine forms.

2Br- + Cl2 → 2Cl- + Br2

Small amounts of bromine can also be made through the reaction of solid sodium bromide, NaBr, with concentrated sulphuric acid, H2SO4. The first stage is formation of HBr, which is a gas, but under the reaction conditions some of the HBr is oxidized by further H2SO4 to form bromine and sulphur dioxide. This reaction does not work with the corresponding chlorides and fluorides.

NaBr (s) + H2SO4 (l) → HBr (g) + NaHSO4 (s)

2HBr (g) + H2SO4 (l) → Br2 (g) + SO2 (g) + 2H2O (l)

Answer 3

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Answer 4

go to this link