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Encyclopedia > Potassium bromate
Potassium bromate
Image:Potassium bromate.jpg
General
Systematic name Potassium bromate(V)
Other names

Bromic acid, potassium salt; IUPAC nomenclature is a system of naming chemical compounds and of describing the science of chemistry in general. ...


Bromated flour

Molecular formula KBrO3
SMILES  ?
Molar mass 166.9922 g/mol
Appearance white crystalline powder
CAS number [7758-01-2]
Properties
Density and phase 3.27 g/cm³, ?
Solubility in water 6.91 g/100 ml (20°C)
Melting point 350°C
Boiling point 370°C (decomposes)
Structure
Coordination
geometry
 ?
Crystal structure  ?
Dipole moment  ? D
Hazards
MSDS External MSDS
Main hazards oxidizing
NFPA 704
R/S statement R: 45, 9, 25
S: 53, 16, 44
RTECS number EF8725000
Supplementary data page
Structure and
properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Other anions  ?
Other cations  ?
Related ?  ?
Related compounds  ?
Except where noted otherwise, data are given for
materials in their standard state (at 25°C, 100 kPa)
Infobox disclaimer and references

Potassium bromate (KBrO3), is a bromate of potassium and takes the form of white crystals or powder. A chemical formula is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... The simplified molecular input line entry specification or SMILES is a specification for unambiguously describing the structure of chemical molecules using short ASCII strings. ... Molar mass is the mass of one mole of a chemical element or chemical compound. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. ... For other uses, see Density (disambiguation). ... In the physical sciences, a phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i. ... Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent. ... H2O and HOH redirect here. ... The melting point of a crystalline solid is the temperature range at which it changes state from solid to liquid. ... Italic text This article is about the boiling point of liquids. ... The coordination geometry of an atom is the geometrical pattern formed by its neighbors in a molecule or a crystal. ... Enargite crystals In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ... The Earths magnetic field, which is approximately a dipole. ... The debye (symbol: D) is a non-SI and non-CGS unit of electrical dipole moment. ... An example MSDS in a US format provides guidance for handling a hazardous substance and information on its composition and properties. ... The examples and perspective in this article or section may not represent a worldwide view. ... NFPA 704 is a standard maintained by the U.S. National Fire Protection Association. ... Risk and Safety Statements, also known as R/S statements, R/S numbers, R/S phrases, and R/S sentences, is a system of hazard codes and phrases for labeling dangerous chemicals and compounds. ... R-phrases are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous substances and preparations. ... S-phrases are defined in Annex IV of European Union Directive 67/548/EEC: Safety advice concerning dangerous substances and preparations. ... RTECS, also known as Registry of Toxic Effects of Chemical Substances, is a database of toxicity information compiled from the open scientific literature that is available for charge. ... The refractive index (or index of refraction) of a medium is a measure for how much the speed of light (or other waves such as sound waves) is reduced inside the medium. ... The relative dielectric constant of a material under given conditions is a measure of the extent to which it concentrates electrostatic lines of flux. ... Ultraviolet-Visible Spectroscopy or Ultraviolet-Visible Spectrophotometry (UV/ VIS) involves the spectroscopy of photons (spectrophotometry). ... Infrared spectroscopy (IR Spectroscopy) is the subset of spectroscopy that deals with the IR region of the EM spectrum. ... Nuclear Magnetic Resonance Spectroscopy most commonly known as NMR Spectroscopy is the name given to the technique which exploits the magnetic properties of nuclei. ... Mass spectrometry (also known as mass spectroscopy (deprecated)[1] or informally, mass-spec and MS) is an analytical technique used to measure the mass-to-charge ratio of ions. ... This article is about the electrically charged particle. ... This article is about the electrically charged particle. ... A question mark is a punctuation mark. ... In chemistry, the standard state of a material is its state at 1 bar (100 kilopascals) and 25 degrees Celsius (298. ... The bromate ion is BrO3−. A bromate is a compound that contains this group. ... General Name, symbol, number potassium, K, 19 Chemical series alkali metals Group, period, block 1, 4, s Appearance silvery white Standard atomic weight 39. ...


It is typically used as a flour improver (E924), strengthening the dough and allowing higher rising. It is an oxidizing agent, and under the right conditions, will be completely used up in the baking bread. However, if too much is added, or if the bread is not cooked long enough or not at a high enough temperature, then a residual amount will remain, which may be harmful if consumed. Potassium bromate might also be used in the production of malt barley where the United States FDA has prescribed certain conditions where it may be used safely, which includes labeling standards for the finished malt barley product. It is a very powerful oxidizer (E°=1.5 volts comparable to Potassium permanganate). Bromate is considered a category 2B (possibly carcinogenic to humans) carcinogen by the International Agency for Research on Cancer (IARC). For other uses, see Flour (disambiguation). ... For the mathematical constant see: E (mathematical constant). ... Dough Dough is a paste made out of any cereals (grains) or leguminous crops by grinding with small amount of water. ... European Union Chemical hazard symbol for oxidizing agents Dangerous goods label for oxidizing agents Oxidizing agent placard An oxidizing agent (also called an oxidant or oxidizer) is A chemical compound that readily transfers oxygen atoms or A substance that gains electrons in a redox chemical reaction. ... Malted barley Malting is a process applied to cereal grains, in which the grains are made to germinate and then are quickly dried before the plant develops. ... The United States Food and Drug Administration is the government agency responsible for regulating food, dietary supplements, drugs, cosmetics, medical devices, biologics and blood products in the United States. ... Malted barley Malting is a process applied to cereal grains, in which the grains are made to germinate and then are quickly dried before the plant develops. ... Potassium permanganate is the chemical compound KMnO4. ... The International Agency for Research on Cancer (IARC, or CIRC in its French acronym) is an intergovernmental agency forming part of the World Health Organisation of the United Nations. ...


Potassium bromate has been banned from use in food products in Europe, as well as the United Kingdom in 1990, and Canada in 1994, and most other countries. It was banned in Sri Lanka in 2001[1], and China in 2005. It is also banned in Nigeria.


In the United States it has not been banned. The FDA sanctioned the use of bromate before the Delaney clause of the Food, Drug, and Cosmetic Act went into effect in 1958 — which bans carcinogenic substances — so that it is more difficult for it to now be banned. Instead, since 1991 the FDA has urged bakers to voluntarily stop using it. In California a warning label is required when bromated flour is used. “FDA” redirects here. ... The Delaney Clause is a 1958 amendment to the Food, Drugs, and Cosmetic Act of 1938, named after Congressman James Delaney of New York. ... The United States Federal Food, Drug, and Cosmetic Act (FD&C) is a set of laws passed by Congress in 1938 giving authority to the Food and Drug Administration to oversee the safety of food, drugs, and cosmetics. ... Official language(s) English Capital Sacramento Largest city Los Angeles Largest metro area Greater Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ...


External links


  Results from FactBites:
 
653. Potassium bromate (WHO Food Additives Series 24) (3017 words)
POTASSIUM BROMATE EXPLANATION Potassium bromate is used in treating barley in beer making in addition to its use in the treatment of flour, and it has been used for the improvement of the quality of fish paste products in Japan (Ministry of Health and Welfare, Japan, 1979).
Bromate is therefore rapidly absorbed from the gastrointestinal tract, partially converted to bromide in the tissues, and rapidly excreted.
Potassium bromate present in flour at 30 mg/kg was quantitatively converted to bromide in breed prepared from the flour by a bulk-fermentation process (Lee & Tkachuk, 1960).
566. Potassium bromate (WHO Food Additives Series 18) (2244 words)
POTASSIUM BROMATE Explanation Potassium bromate has been evaluated for acceptable level of treatment for flour to be consumed by man by the Joint FAO/WHO Committee on Food Additives in 1964 (Annex I, Ref. 7).
Potassium bromate present in flour at 30 mg/kg was quantitatively converted to bromide in bread prepared from the flour by a bulk- fermentation process (Lee & Tkachuk, 1960).
Rat Groups of 53 male and 53 female F-344 rats were given potassium bromate in drinking-water at concentrations of 0, 250 and 500 mg/litre for 110 weeks, except that the high concentration was reduced to 400 mg/litre for male rats in week 60 due to severe inhibition of body weight gain.
  More results at FactBites »


 

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