Bromine

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by dedehuynh
Last updated 5 years ago

Discipline:
Science
Subject:
Chemical Elements
Grade:
8

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Bromine

Free lead is a toxic element that causes damage to the nervous system. Bromine is toxic if inhaled or swallowed. It can damage the respiratory system and the digestive system, and can even cause death. It can also cause damage if spilled on the skin.

-MORE USES-It is also important in the making of pesticides, chemicals used to kill pests. About 20% of all bromine is used in drilling wells. Calcium bromide, sodium bromide, or zinc bromide are added to the well to help increase the drilling process.

Ozone gas filters out a portion of the ultraviolet (UV) radiation from the sun.UV radiation causes skin cancer, sunburn, and cause damages to plants and grafile organisms.Ethylene dibromide is a bromide compound added to leaded gasoline.Leaded gasoline gives off free lead as it burns.

-USES-The most important use for bromine is making flame retardant materials. Materials used in making clothing, carpets, curtains, and drapes are flammable, and if a flame touches them, they burn rapidly. Chemists learned that if you soak the materials in a bromine compound, it would make the material more fire resistant.

-PHYSICAL PROPERTIES-Bromine is one of the two only elements that are liquid! It evaporates easily.It dissolves well with organic liquids similar to alcohol, ether, and carbon etrachloride-but very slighty with water.

-Color-At room temperature, Bromine is a deep reddish-brown.-Density-3.1023 grams per cubic centimeter-Atomic Number-35

-WHY IT'S HARMFUL-Before farmers stopped the process in 2001, farmers used to spray methyl bromide on crops to keep pests off. It is harmful because the methyl bromide would evaporate into the air and damages the ozone layer.

-Boiling Point-58.8°C (137.8°F)-Freezing Point- -7.3°C (18.9°F)-Atomic Mass-79.904Nonmetallic-Group-Halogen

-CHEMICAL PROPERTIES-It is a very reactive element even though it is more reactive than Iodine but less than flourine or chlorine. It reacts well with many metals-sometimes strongly. For example, with potassium it reacts explosively. It can even combine with unreactive metals like platinum and palladium.

-HISTORY-A German chemist Carl Lowig and French chemist Antoine-Jerome Balard discovered it around almost at the same time in 1826. Balard found bromine chemicals in the ash of seaweed from the marshes in Montpellier, France.

BromineSymbol: Br


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