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Potassium Bromide

Potassium bromide, chemical formula KBr, relative molecular weight: 119.00. Colorless crystals or white powder, with a strong salty taste, turning yellow when seen. Slightly hygroscopic. 1g is dissolved in 1.5ml of water, and the aqueous solution is neutral. Relative density (d254) 2.75. Melting point 730 ℃. Boiling point 1435 ℃. Mainly used for spectral analysis, drop analysis to determine copper

Potassium Bromide

Chemical Formula: KBr

Relative Molecular Mass: 119.00

It is a colorless crystal or white powder with a strong salty taste, and turns yellow when exposed to light. It is slightly hygroscopic. 1g dissolves in 1.5mL of water, and the aqueous solution is neutral. Its relative density (d254) is 2.75, melting point is 730℃, boiling point is 1435℃. It is irritating. It is mainly used in spectral analysis, spot analysis for copper and silver determination, polarographic analysis for indium, cadmium and arsenic, as a developer, and in pesticide analysis.

Properties

Colorless crystal or white powder with a strong salty taste; turns yellow when exposed to light, slightly hygroscopic. 1g dissolves in 1.5mL of water, 1mL of boiling water, 4.6mL of glycerol, 250mL of ethanol; the aqueous solution is neutral. Its relative density (d254) is 2.75, melting point is 730℃, boiling point is 1435℃, and it is irritating.

Applications

Used in spot analysis for copper and silver determination, polarographic analysis for indium, cadmium and arsenic, as a developer, and in pesticide analysis.

In the photosensitive material industry, it is used to manufacture photographic films, developers, film intensifiers, toners and color photo bleaches; in medicine, it is used as a nerve sedative (tribromide tablets); it is also used as a chemical analysis reagent, for the transmission of spectroscopy and infrared rays, in the production of special soaps, as well as in engraving, lithography, etc.

Specifications

Item	Pharmaceutical Grade	Photographic Grade
Content	99% min	≥99.5%
Loss on Drying	0.5% max	≤0.3%
Chloride	0.5% max	≤0.2%
Sulfate	0.2% max	/
Bromate	100ppm max	≤100ppm
Heavy Metals	/	≤10ppm
Potassium	/	≤4ppm
Arsenic	/	≤3ppm
Mercury	/	≤3ppm
Iodine	/	≤50ppm
Trace Elements	/	≤0.5ppm
pH Value	5.5—8.5	5.5—8

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產(chǎn)品導航

Potassium Bromide

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