Bromi

Kemiallinen merkki: Br
Järjestysluku: 35
Kategoria: halogeenit
Ryhmä: 17
Jakso: 4
Lohko: p
Moolimassa: 79,904 g/mol
Elektronia kuorilla: 2, 8, 18, 7
CAS-numero: 7726-95-6
Olomuoto: neste
Tiheys: 3,1028 kg/l (lähellä huoneenlämpöä)
Sulamispiste: 265,8 K (-7,2 °C, 19 °F)
Kiehumispiste: 332,0 K (58,8 °C, 137,8 °F)
Kiderakenne: orthorhombic
Hapetusluvut: 5, 4, 3, 1, -1
Elektronegatiivisuus: 2,96 (Pauling-asteikko)
Nimen alkuperä: bromos
Nimen tarkoitus: a Greek word which means 'the stench of he-goats' due to the characteristic smell of the vapors
Faktoja:
- is a reddish-brown volatile liquid at standard room temperature that is intermediate in reactivity between chlorine and iodine
- bromine vapours are corrosive and toxic
- the main applications for bromine are in fire retardants and fine chemi
- has no known role in human health, but organobromine compounds do occur naturally
- is toxic and causes burns
- as an oxidizing agent, it is incompatible with most organic and inorganic compounds
- reacts vigorously with metals, especially in the presence of water, as well as most organic compounds, especially upon illumination
- exists exclusively as bromide salts in diffuse amounts in crustal rock