Potassium bromide is a white crystalline solid , belongs to the group of binary salts , with the chemical formula KBr. Its fundamental characteristic is to be very, hygroscopic , soluble in water and ethanol . It is used in the photographic industry and is an electrical conductor .
Summary
[ hide ]
- 1 Physical properties
- 2 Chemical properties
- 3 Health effects
- 4 Toxicological information
- 5 Ecological information
- 6 Ecotoxicity
- 7 Applications
- 8 Sources
Physical properties
- Physical state: Crystalline solid
- Color: White or colorless.
- Density at 20 ° C: 2.75 g / cm³
- Odor: Odorless
- Molecular Formula: KBr
- Solubility in water: 53.5 g / 100 ml (0 ° C) and in Ethanol 102g / 100 ml at 25 ºC.
- Molar mass 119.01 g / mol
- Melting point: 734 ° C (1007 K)
- Boiling point: 1435 ° C (1708 K)
Chemical properties
- Stability: Hygroscopic. Do not expose it to moisture .
- Reactivity : Do not heat above 800 ºC. It decomposes thermally with ease.
- Materials to avoid: strong oxidants, strong acids and heavy metal salts .
- Combustion On decomposition it generates poisonous and corrosive HBr fumes .
- Reacts explosively with bromine trifluoride .
- Flammability (solid, gaseous): The substance is not flammable.
Health effects
- It can cause eye and skin irritation, therefore contact with this substance should be avoided and for its protection appropriate work clothes should be used to avoid contact with the product.
- For the protection of the environment, the product must be prevented from entering water channels and the sewage system .
Toxicological informacion
- Ingestion can cause abdominal pain , nausea and vomiting .
- Repeated exposure can cause eye irritation.
- It is not irritating to intact skin , but it is slightly irritating to torn skin, and repeated skin contact can cause dermatitis .
- It can cause nausea and vomiting. It can cause numbness, lack of muscle coordination and respiratory depression.
- Repeated ingestion of bromides by mouth can affect the central nervous system .
- The alarm symptoms include mental dullness, poorly articulated language , apathy, anorexia , among others.
Ecological information
- Degradability : This product is an inorganic salt, which completely dissociates in the aquatic environment into bromide and potassium ions. It also breaks down in soils to bromide ions.
- Accumulation: Bioaccumulation does not usually occur because the material is highly soluble in water.
Ecotoxicity
Possible formation of toxic gases in case of heating or fire .
Applications
- Its greatest use is in the photographic industry
- It is used as an anticonvulsant in veterinary medicine
- As a dressing on vegetables .
